Crushed Stone

The largest and oldest producer of crushed stone in Oklahoma.

Crushed Stone Page

Dolese is a leading supplier of crushed stone throughout this region and is consistently ranked as one of the top 20 aggregate producers in the country. Our crushed stone products range in size from riprap - large, broken stones used to line lake shores, rivers and creeks for erosion control - to aglime, a fine limestone dust used by farmers to neutralize soil acidity. 

Dolese operates 11 crushed stone production and distribution facilities strategically located throughout Oklahoma as well as a sand and gravel operation in Baton Rouge, Louisiana. 

As the largest and oldest producer of crushed stone in Oklahoma, we have the resources and ability to handle the largest and most difficult construction projects in the region. 

Dolese crushed stone products are thoroughly tested at our production facilities and in our Quality Control Laboratory in Oklahoma City to ensure our materials meet or exceed all state or federal standards for materials we may quote. We also have the ability to work with customers to meet their specific gradation requirements.

We are dedicated to maintaining the Dolese legacy of producing the finest quality aggregates and delivering that quality with Dolese's legendary customer service. We are continually evaluating our operations in an effort to improve our production to provide the highest quality products at a competitive price. We have invested significantly in our facilities to provide top quality materials and service to our customers. 

Examples of this continuing improvement include a new mill and load out system at our Davis Quarry, a new crushing system at our Hartshone Quarry, and another new crushing system coming soon to our Coleman Quarry. Our new crushers allow us to offer a wider range of products with more reliable product availability and improved quality. 

Crushed Stone Page

In the near future we will be upgrading our ticketing and load out systems at more of our facilities. These upgrades will allow your trucks to get in and out of our facilities faster than ever before. 

Please call Dolese's Aggregate Sales Department at (405) 235-2311 to discuss your crushed stone requirements or for any additional information on our many products and delivery options.

 

It's Easy to Say "Quality". It's Harder to Deliver it.

At Dolese, the quality of our products is of utmost importance - because our products represent us.

To guarantee that our aggregate products meet specifications and customer expectations, we conducted across-the-board Quality Control Lab upgrades at each of our quarries. Staffed by nine trained technicians, these new labs perform tests on our crushed stone products, ensuring we produce a consistent product.

Our aggregates are further tested at Dolese's Central Lab in Oklahoma City - in both raw form and as a component of ready-mixed concrete. At the central lab, aggregates undergo annual testing for alkali-silica reaction (ASR) in concrete, as well as the determination of physical properties such as abrasion resistance, soundness, specific gravity and absorption. In the form of ready-mixed concrete, they also undergo freeze/thaw testing according to for ASTM and Oklahoma Department of Transportation specifications.

We manufacture many sizes of crushed stone at Dolese Bros. Co.

How do you decide which product to use?

Every project is different, and consideration should be given to the general condition of the construction site, its drainage and usage. After that, some basic "rules of thumb" apply.

Even though we produce many sizes of crushed stone, these products can be broadly categorized into two groups. The first, "Clean Rock", consists of products that are clean and have little or no "fines" (smaller pieces) included in them. The other group may contain smaller particles down to and including dust.

Clean Rock is used to make concrete, chip seal a road, fill a lateral line or to add a decorative touch to landscaping projects. These materials are coarse, do not compact, and are excellent in drainage applications.

Products that include fines are commonly referred to as "Base Materials" and are best for roads, parking lots or driveway projects. The fines in the product act as a binder, holding the rock together and making a compacted, sturdy base. Clean Rock lacks that binder and will not compact.

Some specific materials and their most common applications are listed below:

Clean Rock & Base Materials Tables (Download PDF)

Tables_BaseMaterials

 

More than our trucks are green.

At Dolese Bros. Co., we strive to be an environmentally friendly company by conserving our natural resources. One method of conservation we embrace is recycling broken or unused concrete into "new" base material. 

Recycled concrete is a viable product for use as a base material to build roads, driveways or building pads. 

We recycle concrete at our Block Plant located at 7100 S. Sunnylane in Oklahoma City. 

If your project allows, or if you just want to explore being a little more green, call the Dolese Aggregate Sales Department at (405) 235 2311. 

 

 

DLogo

Safety Data Sheet

(Download PDF)

Limestone Products

Rev.1 21 April 2015

Section 1: Product and Company Identification

Product:

Limestone Products

Synonyms:

Aggregate, Aglime, Limestone, Manufactured Sand, Mineral Filler, Screenings, Rip Rap,

Use:

Limestone is used in the manufacture of bricks, mortar, cement, concrete, plasters, paving materials, other construction materials, steel, consumer products, and other goods. Limestone aggregate may be distributed in bags, totes, and bulk shipments.

Product Manufacturer:

Dolese Bros. Co.
20 N.W. 13th
Oklahoma City, OK 73101
Phone: 405‐235‐2311
www.dolese.com

Section 2: Hazards Identification

Physical Hazards:

Not Classified

Hazard Classification:

Carcinogenicity

Category 1A

 

Specific Target Organ Toxicity, Repeated Exposure

Category 2

OSHA Defined Hazards:

Not Classified

GHS LABEL ELEMENTS
Symbol(s)

image

Signal Word:

Danger

Hazard statement

May cause cancer. May cause damage to organs (lungs) through prolonged or repeated exposure.

Precautionary statement
Prevention

Obtain special instructions before use. Do not handle until all safety precautions have been read and understood. Wear protective gloves/protective clothing/eye protection/face protection.

Response

If exposed or concerned: Get medical advice/attention.

Storage

Restrict or control access to stockpile areas. Engulfment hazard: To prevent burial or suffocation, do not enter a confined space, such as a silo, bulk truck or other storage container or vessel that stores or contains aggregates without an effective procedure for assuring safety.

Disposal

Dispose of contents/container in accordance with local/regional/national/international regulations.

Hazards not otherwise Classified (HNOC)

None Known

Supplemental Information

Respirable Crystalline Silica (RCS) may cause cancer. Limestone is a naturally occurring mineral complex that contains varying quantities of quartz (crystalline silica). In its natural bulk state, Limestone is not a known health hazard. Limestone may be subjected to various natural or mechanical forces that produce small particles (dust) which may contain respirable crystalline silica (particles less than 10 micrometers in aerodynamic diameter). Repeated inhalation of respirable crystalline silica (quartz) may cause lung cancer according to IARC and NTP; ACGIH states that it is a suspected cause of cancer. Other forms of RCS (e.g., tridymite and cristobalite) may also be present or formed under certain industrial processes.

 

Section 3: Composition/Information on Ingredients

Ingredient

CAS Number

Percent

Calcium Carbonate

1317‐65‐3

> 50

Crystalline Silica (Quartz)

14808‐60‐7

> 0.1

 

Section 4: First Aid Measures

Inhalation

Limestone dust: Move to fresh air. Call a physician if symptoms develop or persist.

Skin contact

Limestone dust: Wash off with soap and water. Get medical attention if irritation develops and persists.

Eye contact

Limestone dust: Immediately flush with plenty of water for at least 15 minutes. Hold eyelids apart. Occasionally lift the eyelid(s) to ensure thorough rinsing. Beyond flushing, do not attempt to remove material from the eye(s). Get medical attention if irritation develops or persists.

Ingestion

Limestone dust: Rinse mouth and drink plenty of water. Never give anything by mouth to an unconscious person. Get medical attention.

Most important symptoms/effects, acute and delayed

Inhaling dust may cause discomfort in the chest, shortness of breath, and coughing. Prolonged inhalation may cause chronic health effects. This product contains crystalline silica. Prolonged or repeated inhalation of respirable crystalline silica liberated from this product can cause silicosis and may cause cancer.

Indication of immediate medical attention and special treatment needed

Provide general supportive measures and treat symptomatically. Keep victim under observation. Symptoms may be delayed.

General Information

Ensure that medical personnel are aware of the material(s) involved, and take precautions to protect themselves. Pre‐ existing medical conditions that may be aggravated by exposure include disorders of the eye, skin and lung (including asthma and other breathing disorders). If addicted to tobacco, smoking will impair the ability of the lungs to clear themselves of dust.

Section 5: Fire Fighting Measures

Suitable extinguishing media

Non‐flammable. Use fire‐extinguishing media appropriate for surrounding materials

Unsuitable extinguishing media

None known

Specific hazards arising from the chemical

No unusual fire or explosion hazards noted. Not a combustible dust.

Special protective equipment and precautions for firefighters

Use protective equipment appropriate for surrounding materials.

Firefighting equipment/instructions

No Specific precautions.

Specific methods

Contact with powerful oxidizing agents may cause fire and/or explosions (see section 10 of SDS)

General fire hazards

No unusual fire or explosion hazards noted.

Section 6: Accidental Release Measures

Personal precautions and emergency procedures

Wear appropriate protective equipment and clothing during clean‐up of materials that contain or may liberate Limestone dust

Materials and methods for containment and clean-up

Spilled material, where dust is generated, may overexpose cleanup personnel to respirable crystalline silica-containing dust. Do not dry sweep or use compressed air for clean‐up. Wetting of spilled material and/or use of respiratory protective equipment may be necessary.

Environmental Precautions

Avoid discharge of fine particulate matter into drains or water courses.

Section 7: Handling and Storage

Precautions for safe handling

Do not handle until all safety precautions have been read and understood. Keep formation of airborne dusts to a minimum. Provide appropriate exhaust ventilation at places where dust is formed. Do not breathe dust. Avoid prolonged exposure. Provide adequate ventilation. Wear appropriate personal protective equipment. Observe good industrial hygiene practices.

Conditions for safe storage

Avoid dust formation or accumulation.

Section 8: Exposure Controls/Personal Protection

Occupational exposure limits

1. Value equivalent to OSHA formulas (29 CFR 1910.1000; 29 CFR 1917; 29 CFR 1918).
2. Value also applies to MSHA Metal/Non‐Metal (1973 TLVs at 30 CFR 56/57.5001)
3. OSHA enforces 0.250 mg/m3 in construction and shipyards (CPL‐03‐00‐007).
4. Value also applies to OSHA construction (29 CFR 1926.55 Appendix A) and shipyards (29 CFR 1915.1000 Table Z).
5. MSHA limit = 10 mg/m3

U.S. OSHA Table Z‐1 Limits for Air Contaminants (29 CFR 1910.1000)
Components
Type
Value
Form

Particulates not otherwise classified (CAS SEQ250)

PEL

5 mg/m³
15 mg/m³

Respirable fraction (4)
Total dust (5)

Calcium Carbonate (CAS 1317-65-3)

TWA

5 mg/m³
15 mg/m³

Respirable fraction (4)
Total dust (5)


U.S. OSHA Table Z‐3 (29 CFR 1910.1000)
Components
Type
Value
Form

Crystalline Silica (Quartz) (CAS 14808‐60‐7)

TWA

0.3 mg/m³
0.1 mg/m³

Total dust (1,2)
Respirable (1,2,3)

Tridymite and Cristobalite (other forms of crystalline silica) (CAS Mixture)

TWA

0.15 mg/m³
0.05 mg/m³

Total dust (1)
Respirable (1,2)

Particulates not otherwise classified (CAS SEQ250)

TWA

5 mg/m³
15 mg/m³

Respirable fraction (1)
Total dust (1,4,5)


U.S. ACGIH Threshold Limit Values®
Components
Type
Value
Form

Crystalline Silica (all forms; CAS mixture)

TWA

0.025 mg/m³

Respirable fraction

Particulates not otherwise classified (CAS Mixture)

TWA

3 mg/m³
10 mg/m³

Respirable particles (2)
Inhalable particles (2)


U.S. NIOSH: Pocket Guide to Chemical Hazards Components
Components
Type
Value
Form

Crystalline Silica (all forms; CAS mixture)

TWA

0.05 mg/m³

Respirable dust

Calcium Carbonate (CAS 1317‐65‐3)

TWA

5 mg/m³
15 mg/m³

Respirable fraction
Total dust

Biological limit values

No biological exposure limits noted for the ingredient(s).

Exposure guidelines

OSHA PELs, MSHA PELs, and ACGIH TLVs are 8‐hr TWA values. NIOSH RELs are for TWA exposures up to 10‐ hr./day and 40‐hr/wk. Occupational exposure to nuisance dust (total and respirable) and respirable crystalline silica should be monitored and controlled. Terms including "Particulates Not Otherwise Classified," "Particulates Not Otherwise Regulated," "Particulates Not Otherwise Specified," and "Inert or Nuisance Dust" are often used interchangeably; however, the user should review each agency's terminology for differences in meanings.

Appropriate engineering controls

Good general ventilation (typically 10 air changes per hour indoors) should be used. Ventilation rates should be matched to conditions. If applicable, use process enclosures, local exhaust ventilation, or other engineering controls to maintain airborne levels below recommended exposure limits. If exposure limits have not been established, maintain airborne levels to an acceptable level.

Individual protection measures, such as personal protective equipment
Skin protection
Hand protection

Use personal protective equipment as required.

Other

Use personal protective equipment as required.

Respiratory protection

When handling or performing work with Limestone that produces dust or respirable crystalline silica in excess of applicable exposure limits, wear a NIOSH‐approved respirator that is properly fitted and is in good condition. Respirators must be used in accordance with all applicable workplace regulations.

Thermal hazards

Not anticipated. Wear appropriate thermal protective clothing, when necessary.

General hygiene considerations

Always observe good personal hygiene measures, such as washing after handling the material and before eating, drinking, and/or smoking. Routinely wash work clothing and protective equipment to remove contaminants.

Section 9: Physical and Chemical Properties

Appearance
Vapor Pressure

Not applicable

Physical state

Solid

Vapor Density

Not applicable

Form

Solid particles

Relative Density

2.55 - 2.90

Color

White to grey

Solubility(ies)
Odor

Not applicable

Solubility (water)

Insoluble

Odor threshold

Not applicable

Partition coefficient

Not applicable

pH

8.5 - 9.0

(n- octanol/water)
Melting point/freezing point

Not applicable

Auto-ignition temperature

Not applicable

Initial boiling point and boiling range

Not applicable

Decomposition temperature

Not applicable

Flash point

Non combustible

Viscosity

Not applicable

Evaporation rate

Not applicable

Other information
Upper/Lower flammability or explosive limits
Explosive properties

Not applicable

Flammability limit - lower (%)

Not applicable

Flammability

Not applicable

Flammability limit - Upper (%)

Not applicable

Section 10: Chemical Stability and Reactivity Information

Reactivity

The product is stable and non‐reactive under normal conditions of use, storage and transport.

Chemical stability

Material is stable under normal conditions.

Possibility of hazardous reactions

No dangerous reaction known under conditions of normal use.

Section 11: Toxicological Information

Information on likely routes of exposure
Inhalation

Repeated inhalation of respirable crystalline silica (quartz) may cause silicosis, a fibrosis (scarring) of the lungs. Silicosis is irreversible and may be fatal. Silicosis increases the risk of contracting pulmonary tuberculosis. Some studies suggest that repeated inhalation of respirable crystalline silica may cause other adverse health effects including lung and kidney cancer.

Skin contact

Limestone dust: May cause irritation through mechanical abrasion.

Eye contact

Limestone dust: May cause irritation through mechanical abrasion.

Ingestion

Not likely, due to the form of the product. However, accidental ingestion of the content may cause discomfort.

Symptoms related to the physical, chemical and toxicological characteristics

Limestone dust: Discomfort in the chest. Shortness of breath. Coughing.

Information on toxicological effects
Acute toxicity

Not expected to be acutely toxic.

Skin corrosion/irritation

This product is not expected to be a skin hazard.

Serious eye damage/eye irritation

Direct contact with eyes may cause temporary irritation.

Respiratory or skin sensitization
Respiratory sensitization

No respiratory sensitizing affects known.

Skin sensitization

Not known to be a dermal irritant or sensitizer.

Germ cell mutagenicity

No data available to indicate product or any components present at greater than 0.1% are mutagenic or genotoxic.

Carcinogenicity

Respirable crystalline silica has been classified by IARC and NTP as a known human carcinogen, and classified by ACGIH as a suspected human carcinogen.

IARC Monographs. Overall Evaluation of Carcinogenicity

Crystalline Silica (Quartz) (CAS 14808‐60‐7)

1 Carcinogenic to humans.

Respirable Tridymite and Cristobalite

1 Carcinogenic to humans.

(other forms of Crystalline) (CAS Mixture)

NTP Report on Carcinogens

Crystalline Silica (Quartz) (CAS 14808‐60‐7) Known To Be Human Carcinogen.

OSHA Specifically Regulated Substances (29 CFR 1910.1001‐1050)

Not listed.

Reproductive toxicity

Not expected to be a reproductive hazard.

Specific target organ toxicity ‐ single exposure

Not classified.

Specific target organ toxicity -repeated exposure

Respirable crystalline silica: May cause damage to organs (lung) through prolonged or repeated exposure.

Aspiration hazard

Due to the physical form of the product it is not an aspiration hazard.

Chronic effects

Prolonged inhalation of respirable crystalline silica may be harmful. May cause damage to organs (lungs) through prolonged or repeated exposure. There are reports in the literature suggesting that excessive crystalline silica exposure may be associated with autoimmune disorders and other adverse health effects involving the kidney. In particular, the incidence of scleroderma (thickening of the skin caused by swelling and thickening of fibrous tissue) appears to be higher in silicotic individuals. To date, the evidence does not conclusively determine a causal relationship between silica exposure and these adverse health effects.

Section 12: Ecological Information

Ecotoxicity

Not expected to be harmful to aquatic organisms. Discharging Limestone dust and fines into waters may increase total suspended particulate (TSP) levels that can be harmful to certain aquatic organisms.

Persistence and degradability

Not applicable.

Bioaccumulative potential

Not applicable.

Mobility in soil

Not applicable.

Other adverse effects

No other adverse environmental effects (e.g., ozone depletion, photochemical ozone creation potential, global warming potential) are expected from this component.

Section 13: Disposal Considerations

Disposal instructions

Do not allow fine particulate matter to drain into sewers/water supplies. Do not contaminate ponds, waterways or ditches with fine particulates. Dispose of contents in accordance with local/regional/national/international regulations.

Hazardous waste code

Not regulated.

Waste from residues / unused products

Dispose of in accordance with local regulations. Empty containers or liners may retain some product residues. This material and its container must be disposed of in a safe manner (see: Disposal instructions).

Contaminated packaging

Since emptied containers may retain product residue, follow label warnings even after container is emptied. Empty packaging materials should be recycled or disposed of in accordance with applicable regulations and practices.

Section 14: Transportation Information

DOT

Not regulated as dangerous goods

IATA

Not regulated as dangerous goods

IMDG

Not regulated as dangerous goods

Transport in bulk according to Annex II of MARPOL 73/78 and the IBC Code

Not Applicable

Section 15: Regulatory Information

US federal regulations

This product is a "Hazardous Chemical" as defined by the OSHA Hazard Communication Standard, 29 CFR 1910.1200.

TSCA Section 12(b) Export Notification (40 CFR 707, Subpt. D)

Not regulated.

OSHA Specifically Regulated Substances (29 CFR 1910.1001‐1050)

Not listed.

CERCLA Hazardous Substance List (40 CFR 302.4)

Not listed.

Superfund Amendments and Reauthorization Act of 1986 (SARA)

3

Hazard categories

Immediate Hazard

No

Delayed Hazard

Yes

Fire Hazard

No

Pressure Hazard

No

Reactivity Hazard

No

SARA 302 Extremely hazardous substance

Not listed.

SARA 311/312 Hazardous chemical

Yes

SARA 313 (TRI reporting)

Not regulated

Other federal regulations
Clean Air Act (CAA) Section 112 Hazardous Air Pollutants (HAPs) List

Not regulated.

Clean Air Act (CAA) Section 112(r) Accidental Release Prevention (40 CFR 68.130)

Not regulated

Safe Drinking Water Act (SDWA)

Not regulated

International Inventories
Country(s) or region

Inventory name

On inventory (yes/no)*

United States & Puerto Rico

Toxic Substances Control Act (TSCA) Inventory

Yes

* A "Yes" indicates this product complies with the inventory requirements administered by the governing country(s).

A "No" indicates that one or more components of the product are not listed or exempt from listing on the inventory administered by the governing country(s).

Section 16: Other Information

Dolese Bros. Co. (DBC) believes the information contained herein is accurate; however, DBC makes no guarantees with respect to such accuracy and assumes no liability in connection with the use of the information contained herein which is not intended to be and should not be construed as legal advice or as insuring compliance with any federal, state or local laws or regulations. Any party using this product should review all such laws, rules, or regulations prior to use, including but not limited to the United States and Local State regulations.

NO WARRANTY IS MADE, EXPRESS OR IMPLIED, OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR OTHERWISE.

 
DLogo

Safety Data Sheet

(Download PDF)

Gabbro Crushed Aggregate

Rev.2 31 April 2015

Section 1: Product and Company Identification

Product:

Gabbro Crushed Aggregate Products

Synonyms:

Aggregate, Manufactured Sand, Railroad Ballast, Mineral Filler, Screenings, Rip Rap, Gabbro, Volcanic rock, Igneous Rock

Product Use:

Aggregate is used in the manufacture of Portland Cement Concrete, Asphalt Paving, and other construction applications.

Manufacturer:

Dolese Bros. Co.
20 N.W. 13th
Oklahoma City, OK 73101
Phone: 405‐235‐2311
www.dolese.com

Section 2: Hazards Identification

Physical Hazards:

Not Classified

Hazard Classification:

Carcinogenicity

Category 1A

Specific Target Organ Toxicity, Repeated Exposure

Category 2

OSHA Defined Hazards:

Not Classified

GHS LABEL ELEMENTS
 
Symbol(s)

image

Signal Word:

Danger

Hazard statement

May cause cancer. May cause damage to organs (lungs) through prolonged or repeated exposure.

Precautionary statement
 
Prevention

Obtain special instructions before use. Do not handle until all safety precautions have been read and understood. Wear protective gloves/protective clothing/eye protection/face protection.

Response

If exposed or concerned: Get medical advice/attention.

Storage

Restrict or control access to stockpile areas. Engulfment hazard: To prevent burial or suffocation, do not enter a confined space, such as a silo, bulk truck or other storage container or vessel that stores or contains aggregates without an effective procedure for assuring safety.

Disposal

Dispose of contents/container in accordance with local/regional/national/international regulations.

Hazards not otherwise Classified (HNOC)

None Known

Supplemental Information

Respirable Crystalline Silica (RCS) may cause cancer. Gabbro is a naturally occurring mineral complex that contains varying quantities of quartz (crystalline silica). In its natural bulk state, gabbro is not a known health hazard. Gabbro may be subjected to various natural or mechanical forces that produce small particles (dust) which may contain respirable crystalline silica (particles less than 10 micrometers in aerodynamic diameter). Repeated inhalation of respirable crystalline silica (quartz) may cause lung cancer according to IARC and NTP; ACGIH states that it is a suspected cause of cancer. Other forms of RCS (e.g., tridymite and cristobalite) may also be present or formed under certain industrial processes.

 

Section 3: Composition/Information on Ingredients

Ingredient

CAS Number

Percent

Gabbro

None

> 99

Quartz

14808‐60‐7

 < 1.0

 

Section 4: First Aid Measures

Inhalation

Gabbro dust: Move to fresh air. Call a physician if symptoms develop or persist.

Skin contact

Gabbro dust: Wash off with soap and water. Get medical attention if irritation develops and persists.

Eye contact

Gabbro dust: Immediately flush with plenty of water for at least 15 minutes. Hold eyelids apart. Occasionally lift the eyelid(s) to ensure thorough rinsing. Beyond flushing, do not attempt to remove material from the eye(s). Get medical attention if irritation develops or persists.

Ingestion

Gabbro dust: Rinse mouth and drink plenty of water. Never give anything by mouth to an unconscious person. Get medical attention.

Most important symptoms/effects, acute and delayed

Inhaling dust may cause discomfort in the chest, shortness of breath, and coughing. Prolonged inhalation may cause chronic health effects. This product contains crystalline silica. Prolonged or repeated inhalation of respirable crystalline silica liberated from this product can cause silicosis and may cause cancer.

Indication of immediate medical attention and special treatment needed

Provide general supportive measures and treat symptomatically. Keep victim under observation. Symptoms may be delayed.

General Information

Ensure that medical personnel are aware of the material(s) involved, and take precautions to protect themselves. Pre‐existing medical conditions that may be aggravated by exposure include disorders of the eye, skin and lung (including asthma and other breathing disorders). If addicted to tobacco, smoking will impair the ability of the lungs to clear themselves of dust.

Section 5: Fire Fighting Measures

Suitable extinguishing media

Non‐flammable. Use fire‐extinguishing media appropriate for surrounding materials

Unsuitable extinguishing media

None known

Specific hazards arising from the chemical

No unusual fire or explosion hazards noted. Not a combustible dust.

Special protective equipment and precautions for firefighters

Use protective equipment appropriate for surrounding materials.

Firefighting equipment/instructions

No Specific precautions.

Specific methods

Contact with powerful oxidizing agents may cause fire and/or explosions (see section 10 of SDS)

General fire hazards

No unusual fire or explosion hazards noted.

Section 6: Accidental Release Measures

Personal precautions and emergency procedures

Wear appropriate protective equipment and clothing during clean-up of materials that contain or may liberate gabbro dust

Materials and methods for containment and clean-up

Spilled material, where dust is generated, may overexpose cleanup personnel to respirable crystalline silica-containing dust. Do not dry sweep or use compressed air for clean-up. Wetting of spilled material and/or use of respiratory protective equipment may be necessary.

Environmental Precautions

Do not wash aggregates down sewage and/or drainage systems or into bodies of water (e.g. streams).

Section 7: Handling and Storage

Precautions for safe handling

Do not handle until all safety precautions have been read and understood. Keep formation of airborne dusts to a minimum. Provide appropriate exhaust ventilation at places where dust is formed. Do not breathe dust. Avoid prolonged exposure. Provide adequate ventilation. Wear appropriate personal protective equipment. Observe good industrial hygiene practices.

Conditions for safe storage

Avoid dust formation or accumulation.

Section 8: Exposure Controls/Personal Protection

Occupational exposure limits

1. Value equivalent to OSHA formulas (29 CFR 1910.1000; 29 CFR 1917; 29 CFR 1918).
2. Value also applies to MSHA Metal/Non‐Metal (1973 TLVs at 30 CFR 56/57.5001)
3. OSHA enforces 0.250 mg/m³ in construction and shipyards (CPL‐03‐00‐007).
4. Value also applies to OSHA construction (29 CFR 1926.55 Appendix A) and shipyards (29 CFR 1915.1000 Table Z).
5. MSHA limit = 10 mg/m³

U.S. OSHA Table Z‐1 Limits for Air Contaminants (29 CFR 1910.1000)
Components
Type
Value
Form

Particulates not otherwise classified (CAS SEQ250)

PEL

5 mg/m³
15 mg/m³

Respirable fraction
Total dust (4)


U.S. OSHA Table Z‐3 (29 CFR 1910.1000)
Components
Type
Value
Form

Crystalline Silica (Quartz) (CAS 14808‐60‐7)

TWA

0.3 mg/m³
0.1 mg/m³

Total dust (1,2)
Respirable (1,2,3)

Tridymite and Cristobalite (other forms of crystalline silica) (CAS Mixture)

TWA

0.15 mg/m³
0.05 mg/m³

Total dust (1)
Respirable (1,2)

Particulates not otherwise classified (CAS SEQ250)

TWA

5 mg/m³
15 mg/m³

Respirable fraction (1)
Total dust (1,4,5)


U.S. ACGIH Threshold Limit Values®
Components
Type
Value
Form

Crystalline Silica (all forms; CAS mixture)

TWA

0.025 mg/m³

Respirable fraction

Particulates not otherwise classified (CAS Mixture)

TWA

3 mg/m³
10 mg/m³

Respirable particles (2)
Inhalable particles (2)


U.S. NIOSH: Pocket Guide to Chemical Hazards Components
Components
Type
Value
Form

Crystalline Silica (all forms; CAS mixture)

TWA

0.05 mg/m³

Respirable dust

Biological limit values

No biological exposure limits noted for the ingredient(s).

Exposure guidelines

OSHA PELs, MSHA PELs, and ACGIH TLVs are 8-hr TWA values. NIOSH RELs are for TWA exposures up to 10- hr./day and 40-hr/wk. Occupational exposure to nuisance dust (total and respirable) and respirable crystalline silica should be monitored and controlled. Terms including "Particulates Not Otherwise Classified," "Particulates Not Otherwise Regulated," "Particulates Not Otherwise Specified," and "Inert or Nuisance Dust" are often used interchangeably; however, the user should review each agency's terminology for differences in meanings.

Appropriate engineering controls

Good general ventilation (typically 10 air changes per hour indoors) should be used. Ventilation rates should be matched to conditions. If applicable, use process enclosures, local exhaust ventilation, or other engineering controls to maintain airborne levels below recommended exposure limits. If exposure limits have not been established, maintain airborne levels to an acceptable level.

Individual protection measures, such as personal protective equipment
Eye/face protection

Wear safety glasses with side shields (or goggles).

Skin protection

 

Hand protection

Use personal protective equipment as required.

Other

Use personal protective equipment as required.

Respiratory protection

When handling or performing work with Limestone that produces dust or respirable crystalline silica in excess of applicable exposure limits, wear a NIOSH‐approved respirator that is properly fitted and is in good condition. Respirators must be used in accordance with all applicable workplace regulations.

Thermal hazards

Not anticipated. Wear appropriate thermal protective clothing, when necessary.

General hygiene considerations

Always observe good personal hygiene measures, such as washing after handling the material and before eating, drinking, and/or smoking. Routinely wash work clothing and protective equipment to remove contaminants.

Section 9: Physical and Chemical Properties

Appearance
Vapor Pressure

Not applicable

Physical state

Solid

Vapor Density

Not applicable

Form

Solid particles

Relative Density

2.78 - 2.82

Color

Black to grey

Solubility(ies)
Odor

Not applicable

Solubility (water)

Insoluble

Odor threshold

Not applicable

Partition coefficient

Not applicable

pH

8.5 - 9.0

(n- octanol/water)
Melting point/freezing point

Not applicable

Auto-ignition temperature

Not applicable

Initial boiling point and boiling range

Not applicable

Decomposition temperature

Not applicable

Flash point

Non combustible

Viscosity

Not applicable

Evaporation rate

Not applicable

Other information
Upper/Lower flammability or explosive limits
Explosive properties

Not applicable

Flammability limit - lower (%)

Not applicable

Flammability

Not applicable

Flammability limit - Upper (%)

Not applicable

Section 10: Chemical Stability and Reactivity Information

Reactivity

The product is stable and non‐reactive under normal conditions of use, storage and transport.

Chemical stability

Material is stable under normal conditions.

Possibility of hazardous reactions

No dangerous reaction known under conditions of normal use.

Section 11: Toxicological Information

Information on likely routes of exposure
Inhalation

Repeated inhalation of respirable crystalline silica (quartz) may cause silicosis, a fibrosis (scarring) of the lungs. Silicosis is irreversible and may be fatal. Silicosis increases the risk of contracting pulmonary tuberculosis. Some studies suggest that repeated inhalation of respirable crystalline silica may cause other adverse health effects including lung and kidney cancer.

Skin contact

Gabbro dust: May cause irritation through mechanical abrasion.

Eye contact

Gabbro dust: May cause irritation through mechanical abrasion.

Ingestion

Not likely, due to the form of the product. However, accidental ingestion of the content may cause discomfort.

Symptoms related to the physical, chemical and toxicological characteristics

Gabbro dust:  Discomfort in the chest.  Shortness of breath.  Coughing.

Information on toxicological effects
Acute toxicity

Not expected to be acutely toxic.

Skin corrosion/irritation

This product is not expected to be a skin hazard.

Serious eye damage/eye irritation

Direct contact with eyes may cause temporary irritation.

Respiratory or skin sensitization
Respiratory sensitization

No respiratory sensitizing affects known.

Skin sensitization

Not known to be a dermal irritant or sensitizer.

Germ cell mutagenicity

No data available to indicate product or any components present at greater than 0.1% are mutagenic or genotoxic.

Carcinogenicity

Respirable crystalline silica has been classified by IARC and NTP as a known human carcinogen, and classified by ACGIH as a suspected human carcinogen.

IARC Monographs. Overall Evaluation of Carcinogenicity

Crystalline Silica (Quartz) (CAS 14808‐60‐7)

1 Carcinogenic to humans.

Respirable Tridymite and Cristobalite

1 Carcinogenic to humans.

(other forms of Crystalline) (CAS Mixture)

 
NTP Report on Carcinogens

Crystalline Silica (Quartz) (CAS 14808‐60‐7) Known To Be Human Carcinogen.

OSHA Specifically Regulated Substances (29 CFR 1910.1001‐1050)

Not listed.

Reproductive toxicity

Not expected to be a reproductive hazard.

Specific target organ toxicity ‐ single exposure

Not classified.

Specific target organ toxicity -repeated exposure

Respirable crystalline silica: May cause damage to organs (lung) through prolonged or repeated exposure.

Aspiration hazard

Due to the physical form of the product it is not an aspiration hazard.

Chronic effects

Prolonged inhalation of respirable crystalline silica may be harmful. May cause damage to organs (lungs) through prolonged or repeated exposure. There are reports in the literature suggesting that excessive crystalline silica exposure may be associated with autoimmune disorders and other adverse health effects involving the kidney. In particular, the incidence of scleroderma (thickening of the skin caused by swelling and thickening of fibrous tissue) appears to be higher in silicotic individuals. To date, the evidence does not conclusively determine a causal relationship between silica exposure and these adverse health effects.

Section 12: Ecological Information

Ecotoxicity

Not expected to be harmful to aquatic organisms. Discharging Limestone dust and fines into waters may increase total suspended particulate (TSP) levels that can be harmful to certain aquatic organisms.

Persistence and degradability

Not applicable.

Bioaccumulative potential

Not applicable.

Mobility in soil

Not applicable.

Other adverse effects

No other adverse environmental effects (e.g., ozone depletion, photochemical ozone creation potential, global warming potential) are expected from this component.

Section 13: Disposal Considerations

Disposal instructions

Do not allow fine particulate matter to drain into sewers/water supplies. Do not contaminate ponds, waterways or ditches with fine particulates. Dispose of contents in accordance with local/regional/national/international regulations.

Hazardous waste code

Not regulated.

Waste from residues / unused products

Dispose of in accordance with local regulations. Empty containers or liners may retain some product residues. This material and its container must be disposed of in a safe manner (see: Disposal instructions).

Contaminated packaging

Since emptied containers may retain product residue, follow label warnings even after container is emptied. Empty packaging materials should be recycled or disposed of in accordance with applicable regulations and practices.

Section 14: Transportation Information

This product is not classified as a Hazardous Material under U.S. DOT regulations.

Section 15: Regulatory Information

US federal regulations

This product is a "Hazardous Chemical" as defined by the OSHA Hazard Communication Standard, 29 CFR 1910.1200.

TSCA Section 12(b) Export Notification (40 CFR 707, Subpt. D)

Not regulated.

OSHA Specifically Regulated Substances (29 CFR 1910.1001‐1050)

Not listed.

CERCLA Hazardous Substance List (40 CFR 302.4)

Not listed.

Superfund Amendments and Reauthorization Act of 1986 (SARA)

 

Hazard categories

Immediate Hazard

No

Delayed Hazard

Yes

Fire Hazard

No

Pressure Hazard

No

Reactivity Hazard

No

SARA 302 Extremely hazardous substance

Not listed.

SARA 311/312 Hazardous chemical

Yes

SARA 313 (TRI reporting)

Not regulated

Other federal regulations
 
Clean Air Act (CAA) Section 112 Hazardous Air Pollutants (HAPs) List

Not regulated.

Clean Air Act (CAA) Section 112(r) Accidental Release Prevention (40 CFR 68.130)

Not regulated

Safe Drinking Water Act (SDWA)

Not regulated

International Inventories
Country(s) or region

Inventory name

On inventory (yes/no)*

United States & Puerto Rico

Toxic Substances Control Act (TSCA) Inventory

Yes

* A "Yes" indicates this product complies with the inventory requirements administered by the governing country(s).

A "No" indicates that one or more components of the product are not listed or exempt from listing on the inventory administered by the governing country(s).

Section 16: Other Information

Dolese Bros. Co. (DBC) believes the information contained herein is accurate; however, DBC makes no guarantees with respect to such accuracy and assumes no liability in connection with the use of the information contained herein which is not intended to be and should not be construed as legal advice or as insuring compliance with any federal, state or local laws or regulations. Any party using this product should review all such laws, rules, or regulations prior to use, including but not limited to the United States and Local State regulations.

NO WARRANTY IS MADE, EXPRESS OR IMPLIED, OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR OTHERWISE.

 
 

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