What does CA mean for niosh?

Appendices. A – NIOSH Potential Occupational Carcinogens. B – Thirteen OSHA-Regulated Carcinogens. C – Supplementary Exposure Limits. D – Substances with No Established RELs.

What does niosh ST mean?

short-term exposure limit
NIOSH RELs, “TWA” indicates a time-weighted average concentration for up to a 10-hour. workday during a 40-hour workweek. A short-term exposure limit (STEL) is designated by. “ST” preceding the value; unless noted otherwise, the STEL is a 15-minute TWA exposure. that should not be exceeded at any time during a workday.

What is in VM&P naphtha?

None reported [Note: VM&P Naphtha is a refined petroleum solvent predominantly C7-C11 which is typically 55% paraffins, 30% monocycloparaffins, 2% dicycloparaffins & 12% alklybenzenes.]

What is the PEL for petroleum?

The final rule establishes an 8-hour TWA PEL of 400 ppm for petroleum distillates. The ACGIH has a TLV-TWA of 400 ppm, and NIOSH recommends a TWA of 87 ppm and a 15-minute ceiling of 450 ppm for these substances.

What is the difference between OSHA PEL and NIOSH REL?

The OSHA PEL is the legally enforceable regulatory limit. Employers are required to take actions to reduce worker exposures if air samples show levels above OSHA’s calculated Permissible Exposure Limit (PEL). The NIOSH Recommended Exposure Limit (REL) is a non-mandatory, recommended occupational exposure limit.

How many chemicals are in NIOSH Pocket Guide?

677 chemicals
The Pocket Guide presents key information and data in abbreviated tabular form for 677 chemicals or substance groupings (e.g., manganese compounds, tellurium compounds, inorganic tin compounds, etc.) that are found in the work environment.

What is the NIOSH recommended exposure limit?

85 decibels
The recommended exposure limit (REL) proposed by the National Institute for Occupational Safety and Health (NIOSH) is 85 decibels as an 8 hour time-weighted average.

What is VM and P naphtha?

VM & P Naphtha is a colorless to yellow, liquid petroleum product with an odor like gasoline. It is used as a solvent in making adhesives, varnishes, lacquers, coatings, rubber, resins, textiles and printing inks, and in diluting paints.

What does VM P naphtha stand for?

An abbreviation for a trademark name of Varnish Makers and Painters Naphtha. VM&P naphtha is a aliphatic hydrocarbon solvent mixture distilled from petroleum. It has a boiling range of about 90-160C. VM&P naphtha is used as a paint thinner, metal degreaser and cleaning fluid.

What is aliphatic petroleum distillate?

Aliphatic naphthas are a liquid hydrocarbon mixture. Also known as aliphatic solvent naphthas, the term covers a category of chemicals derived from petroleum distillates and natural gas condensates. These chemicals are clean and flammable by nature, and, as such, can be used for a variety of purposes.

Is petroleum considered a hazardous material?

Under normal uses as fuels, lubricants, or paving materials, petroleum products are not considered hazardous materials. For instance, fuels are normally consumed through combustion processes to drive motors or provide space heating.