| Organization | Standard | Reference | 
|---|
| Mine Safety and Health Administration (MSHA) STANDARD-air | time-weighted average 5 mg/m3 (skin) | DTLVS* 3,265,1971 | 
| Occupational Exposure Limit IN ARGENTINA, BULGARIA, COLOMBIA, JORDAN check ACGIH TLV; |  |  | 
| Occupational Exposure Limit IN SINGAPORE, VIETNAM check ACGIH TLV |  |  | 
| Occupational Exposure Limit-ARAB Republic of Egypt | time-weighted average 5 mg/m3, JAN1993 |  | 
| Occupational Exposure Limit-AUSTRALIA | time-weighted average 5 mg/m3, JUL2008 |  | 
| Occupational Exposure Limit-AUSTRIA | MAK-TMW 5 mg/m3, inhal, skin, 2007 |  | 
| Occupational Exposure Limit-BELGIUM | time-weighted average 5 mg/m3, Skin, MAR2002 |  | 
| Occupational Exposure Limit-DENMARK | time-weighted average 5 mg/m3, skin, MAY2011 |  | 
| Occupational Exposure Limit-FRANCE | VME 5 mg/m3, Skin, FEB2006 |  | 
| Occupational Exposure Limit-HUNGARY | time-weighted average 5 mg/m3, Skin, SEP2000 |  | 
| Occupational Exposure Limit-ICELAND | time-weighted average 5 mg/m3, skin, NOV2011 |  | 
| Occupational Exposure Limit-KOREA | time-weighted average 5 mg/m3, skin, 2006 |  | 
| Occupational Exposure Limit-MEXICO | time-weighted average 5 mg/m3;short term exposure limit 10 mg/m3, 2004 |  | 
| Occupational Exposure Limit-NEW ZEALAND | time-weighted average 5 mg/m3, skin, JAN2002 |  | 
| Occupational Exposure Limit-NORWAY | time-weighted average 0.01 mg(Ag)/m3, JAN1999 |  | 
| Occupational Exposure Limit-PERU | time-weighted average 5 mg/m3, JUL2005 |  | 
| Occupational Exposure Limit-POLAND | MAC(time-weighted average) 5 mg/m3, JAN1999 |  | 
| Occupational Exposure Limit-RUSSIA | short term exposure limit 1 mg/m3, Skin, JUN2003 |  | 
| Occupational Exposure Limit-SWEDEN | time-weighted average 0.2 mg/m3;short term exposure limit 0.6 mg/m3, Skin, JUN2005 |  | 
| Occupational Exposure Limit-SWITZERLAND | MAK-week 5 mg/m3, inhal, skin, JAN2011 |  | 
| Occupational Exposure Limit-THE NETHERLANDS | MAC-TGG 5 mg/m3, 2003 |  | 
| Occupational Exposure Limit-THE PHILIPPINES | time-weighted average 5 mg/m3, Skin, JAN1993 |  | 
| Occupational Exposure Limit-TURKEY | time-weighted average 5 mg/m3, Skin, JAN1993 |  | 
| Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (Construction) | 8H time-weighted average 5 mg/m3 (skin) | CFRGBR 29,1926.55,1994 | 
| Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (Federal Contractors) | 8H time-weighted average 5 mg/m3 (skin) | CFRGBR 41,50-204.50,1994 | 
| Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (General Industry) | 8H time-weighted average 5 mg/m3 (skin) | CFRGBR 29,1910.1000,1994 | 
| Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (Shipyards) | 8H time-weighted average 5 mg/m3 (skin) | CFRGBR 29,1915.1000,1993 |