Useful Industrial Hygiene Resources


OSHA has established many regulations regarding the chemicals that are commonly used within the industry. Unfortunately, finding these references and standards can often be challenging. Due to this, we have summarized many of the standard documents and sources for exposure limits in one convenient place.

Insight IH Consulting is very capable of providing assessments for all the chemicals shown below. If you need assistance, do not hesitate, contact us today!

OSHA Permissible Exposure Limits

The following three tables establish the permissible exposure limits (PELs) for many industrial chemicals.

Table Z-1 Limits for Air Contaminants

Table Z-2 Toxic and Hazardous Substances

Table Z-3 Mineral Dusts

OSHA Standards

OSHA has developed chemical-specific standards that set numerous requirements to ensure the protection of employees. These standards often require a baseline determination and (depending on the concentrations) periodic monitoring (quarterly or semi-annually). These standards regulate the following chemicals:
1910.1001 – Asbestos.
1910.1002 – Coal tar pitch volatiles; interpretation of term.
1910.1003 – 13 Carcinogens (4-Nitrobiphenyl, etc.).
1910.1004 – alpha-Naphthylamine.
1910.1006 – Methyl chloromethyl ether.
1910.1007 – 3,’-Dichlorobenzidine (and its salts).
1910.1008 – bis-Chloromethyl ether.
1910.1009 – beta-Naphthylamine.
1910.1010 – Benzidine.
1910.1011 – 4-Aminodiphenyl.
1910.1012 – Ethyleneimine.
1910.1013 – beta-Propiolactone.
1910.1014 – 2-Acetylaminofluorene.
1910.1015 – 4-Dimethylaminoazobenzene.
1910.1016 – N-Nitrosodimethylamine.
1910.1017 – Vinyl chloride.
1910.1018 – Inorganic arsenic.
1910.1024 – Beryllium.
1910.1025 – Lead.
1910.1026 – Chromium (VI)
1910.1027 – Cadmium
1910.1028 – Benzene.
1910.1029 – Coke oven emissions.
1910.1043 – Cotton dust.
1910.1044 – 1,2-dibromo-3-chloropropane.
1910.1045 – Acrylonitrile.
1910.1047 – Ethylene oxide.
1910.1048 – Formaldehyde.
1910.1050 – Methylenedianiline
1910.1051 – 1,3-Butadiene.
1910.1052 – Methylene Chloride.
1910.1053 – Respirable crystalline silica.


There are certain states that have established their own set of exposure limits, that differ from the Federal Limits. OSHA currently has 470 Permissible Exposure Limits (PELs) for various forms of approximately 300 chemical substances, many of which are widely used in industrial settings. While many of these substances share common properties, each one has unique characteristics and effects. Therefore, the potential health effects of exposure to these chemicals are extremely varied. Both chronic and acute effects on virtually every bodily system have been reported, including sensory irritation; sensitization; metabolic disturbances; cardiovascular, neurologic, respiratory, liver, and kidney disease; reproductive effects; and cancer.

State Plans with Limits that Differ from Federal OSHA Linked Below:

 California OSHA (CalOSHA) PELs
 Michigan OSHA (MIOSHA) PELs
 Oregon OSHA PELs
 Tennessee OSHA (TOSHA) PELs
 Washington DOSH PELs

Centers for Disease Control and Prevention

OSHA Respiratory Protection Standard

Frequently Utilized Industrial Hygiene Testing Laboratories

There are many laboratories that offer industrial hygiene analytical services.  The labs we commonly partner with are shown below:

Wisconsin Occupational Health Laboratory (WOHL)

SGS Galson Laboratories

Maxxam Laboratories

Cassen Testing Laboratories

Assay Technology, Inc.