OSHA Hazard Awareness Advisor

 OSHA Regulations (Standards - 29 CFR)
 TABLE Z-2 - 1910.1000 TABLE Z-2
  --------------------------------------------------------------

                              TABLE Z-2

 ____________________ ___________ ____________ _________________
                     |           |            |
                     |           |            |Acceptable maximum peak
                     | 8-hour    |            |  above the acceptable
                     |  time     | Acceptable | ceiling concentration
    Substance        | weighted  |  ceiling   |   for an 8-hr shift
                     | average   | concentra- |____________________
                     |           |   tion     |          |
                     |           |            | Concen-  |  Maximum
                     |           |            |  tration | duration
 ___________________ | _________ | __________ | ________ | ________
                     |           |            |          |
 Benzene(a)          |           |            |          |
 (Z37.40-1969).......|10 ppm.....| 25 ppm.....| 50 ppm...|10 minutes
 Beryllium and       |           |            |          |
 beryllium compounds |           |            |          |
 (Z37.29-1970).......|2 ug/m(3)..| 5 ug/m(3)..|25 ug/m(3)|30 minutes
 Cadmium fume(b)     |           |            |          |
 (Z37.5-1970)........|0.1 mg/m(3)| 0.3 mg/m(3)| .........|
 Cadmium dust(b)     |           |            |          |
 (Z37.5-1970)........|0.2 mg/m(3)| 0.6 mg/m(3)|          |
 Carbon disulfide    |           |            |          |
 (Z37.3-1968)........|20 ppm.... | 30 ppm.....| 100 ppm..|30 minutes.
 Carbon tetrachloride|           |            |          |
 (Z37.17-1967).......|10 ppm.....| 25 ppm.....| 200 ppm..|5 min. in
                     |           |            |          | any 4 hrs.
 Chromic acid and    |           |            |          |
 chromates           |           |            |          |
 (Z37-7-1971)........|.......... |1 mg/10 m(3)|          |
 Ethylene dibromide  |           |            |          |
 (Z37.31-1970).......|20 ppm.....| 30 ppm.....| 50 ppm...|5 minutes.
 Ethylene dichloride |           |            |          |
 (Z37.21-1969).......|50 ppm.....| 100 ppm....| 200 ppm..|5 min. in
                     |           |            |          | any 3 hrs.
 Fluoride as dust    |           |            |          |
 (Z37.28-1969).......|2.5 mg/m(3)| ...........| .........|
 Formaldehyde:       |           |            |          |
 see 1910.1048.......|...........| ...........| .........|
 Hydrogen fluoride   |           |            |          |
 (Z37.28-1969).......|3 ppm......| .......... | .........|
 Hydrogen sulfide    |           |            |          |
 (Z37.2-1966)........|.......... | 20 ppm.....| 50 ppm...|10 mins.
                     |           |            |          | once only
                     |           |            |          | if no
                     |           |            |          | other
                     |           |            |          | meas. exp.
                     |           |            |          | occurs.
 Mercury             |           |            |          |
 (Z37.8-1971)........|.......... | 1 mg/10m(3)| ........ |
 Methylene chloride: |           |            |          |
 see 1910.1052.......|           |            |          |
 Organo (alkyl)      |           |            |          |
 mercury             |           |            |          |
 (Z37.30-1969).......|0.01mg/m(3)|0.04 mg/m(3)| .........|
 Styrene             |           |            |          |
 (Z37.15-1969).......|100 ppm....| 200 ppm....| 600 ppm..|5 mins. in
                     |           |            |          | any 3 hrs.
 Tetrachloroethylene |           |            |          |
 (Z37.22-1967).......|100 ppm....| 200 ppm....| 300 ppm..|5 mins. in
                     |           |            |          | any 3 hrs.
 Toluene             |           |            |          |
 (Z37.12-1967).......|200 ppm....| 300 ppm....| 500 ppm..|10 minutes
 Trichloroethylene   |           |            |          |
 (Z37.19-1967).......|100 ppm....| 200 ppm....| 300 ppm..|5 mins. in
                     |           |            |          | any 2 hrs.
 ____________________|___________|____________|__________|_______

  Footnote(a) This standard applies to the industry segments exempt
 from the 1 ppm 8-hour TWA and 5 ppm STEL of the benzene standard at
 1910.1028.

  Footnote(b) This standard applies to any operations or sectors for
 which the Cadmium standard, 1910.1027, is stayed or otherwise not in
 effect.

 [62 FR 42018, August 4, 1997]