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Withdrawn Methods

With the exception of withdrawn OSHA Method 7, withdrawn methods retain the validation status that applied at the time of publication based on OSHA’s then current validation guidelines. The validation data found in these withdrawn methods may still be useful. However, when making a determination regarding fitness for use, or when evaluating measurement uncertainty estimations, support for these methods is limited to the existing data. Any user of withdrawn OSHA methods should evaluate the potential need for additional independent data beyond what currently exists that may be required to validate a specific use.

Regarding Method 7, a determination was made to simply cite the NIOSH methods that formed the basis for the method. This method was never intended to cover analytes not listed in the method, nor other sampling and analysis approaches besides those specified. By reverting to the NIOSH methods in lieu of citing Method 7, we recognize the usefulness of the NIOSH methods, while indicating that OSHA Method 7 was never intended to apply to analytes not listed there, nor to other sampling media, desorption solvents, or other desorption approaches.

Substance CAS Number(s)
Acetic and Formic Acids [ID-186SG] Withdrawn (replaced by OSHA Method PV2119) 64-19-7
Acetic Anhydride [82] Withdrawn (replaced by OSHA Method 102) 108-24-7
Acrylamide [21] Withdrawn (replaced by OSHA Method PV2004) 79-06-1
Acrylic Acid [28] Withdrawn (replaced by OSHA Method PV2005) 79-10-7
Aluminium Oxide [ID-109SG] Withdrawn (replaced by OSHA Method PV2121) 1344-28-1
Benzene [12] Withdrawn (replaced by OSHA Method 1005) 71-43-2
2-Butanone (Methyl Ethyl Ketone) [84] Withdrawn (replaced by OSHA Method 1004) 78-93-3
2-Butanone (Methyl Ethyl Ketone) Silica Gel [16] Withdrawn (replaced by OSHA Method 1004) 78-93-3
Cadmium [ID-189] Withdrawn (replaced by OSHA Method 1006) 7440-43-9
Chromium (VI) [ID-215 v.1] Withdrawn (replaced by OSHA Method ID-215 v.2 and W4001) 18540-29-9
Cristobalite [ID-142] Withdrawn (replaced by OSHA Method ID-142 v.4) 14464-46-1
Crystalline Silica [ID-142] Withdrawn (replaced by OSHA Method ID-142 v.4) 14808-60-7
14464-46-1
1317-95-9
Diacetyl and/or Acetoin [1013] Withdrawn (OSHA Method 1012 is preferred) 431-03-8
513-86-0
Diethylnitrosamine [13] Withdrawn (replaced by OSHA Method 38) 55-18-5
Dimethylnitrosamine [6] Withdrawn (replaced by OSHA Method 38) 62-75-9
Diphenylamine [22] Withdrawn (replaced by OSHA Method 78) 122-39-4
Ethyl Alcohol [100] Withdrawn (replaced by OSHA Method 5001) 64-17-5
Ethylene Oxide [30] Withdrawn (replaced by OSHA Method 1010) 75-21-8
Ethylene Oxide [49] Withdrawn (replaced by OSHA Method 1010) 75-21-8
Ethylene Oxide [50] Withdrawn (replaced by OSHA Method 1010) 75-21-8
Formaldehyde (Diffusive) [ID-205] Withdrawn (replaced by OSHA Method 52 and 1007) 50-00-0
Inorganic Arsenic In Workplace Atmospheres [ID-105] Withdrawn (replaced by OSHA Method 1006) 7664-41-7
Isopropyl Alcohol [109] Withdrawn (replaced by OSHA Method 5001) 108-21-4
L-Thyroxine [PV2117] Withdrawn 51-48-9
Maleic Anhydride [25] Withdrawn (replaced by OSHA Method 86) 108-31-6
2-Methoxyethyl Acetate [79] Withdrawn (replaced by OSHA Method 53) 109-86-4
Methyl Alcohol [91] Withdrawn (replaced by OSHA Method 5001) 67-56-1
Methylene Biphenyl Isocyanate [33] Withdrawn (replaced by OSHA Method 47) 101-68-8
Methylene Chloride [59] Withdrawn (replaced by OSHA Method 80) 75-09-2
4,4-Methylenebis(o-Chloroaniline)-(MOCA) [24] Withdrawn (replaced by OSHA Method 71) 101-14-4
N,N-Dimethylethylamine [PV2096] Withdrawn 598-56-1
N-Nitrosomorpholine [17] Withdrawn (replaced by OSHA Method 27) 59-89-2
Oil Mist in Workplace Atmospheres [ID-128] Withdrawn (replaced by OSHA Method PV2121) 8012-95-1
Organic Vapors [7] Withdrawn (replaced by various NIOSH Methods) Various
Qualitative X-Ray [ID-204] Withdrawn
Quartz [ID-142] Withdrawn (replaced by OSHA Method ID-142 v.4) 14808-60-7
Silica [ID-142] Withdrawn (replaced by OSHA Method ID-142 v.4)
Styrene [9] Withdrawn (replaced by OSHA Method 89 and 1014) 100-42-5
Sulfur Dioxide [ID-104] Withdrawn (replaced by OSHA Method 1011) 7446-09-5
Sulfur Dioxide (Solid Sorbent) [ID-200] Withdrawn (replaced by OSHA Method 1011) 7446-09-5
Tripoli [ID-142] Withdrawn (replaced by OSHA Method ID-142 v.4) 1317-95-9
Vanadium Pentoxide [ID-185] Withdrawn (replaced by OSHA Method PV2121 and 126G) 1314-62-1
Vinyl Chloride [4] Withdrawn (replaced by OSHA Method 75) 75-01-4
Zinc Stearate [ID-220SG] Withdrawn (replaced by OSHA Method PV2121) 557-05-1

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