2024年9月6日 · Studies in animals show low birth weights, bones being formed late, and bone marrow damage when pregnant animals breathed benzene. Cancer. The Department of Health and Human Services (DHHS) has said that benzene causes cancer in humans. Long-term exposure to high levels of benzene in the air can cause leukemia, a blood-related cancer. Fertility

[Note: NIOSH recommends as part of its carcinogen policy that the “most protective” respirators be worn for benzene at concentrations above 0.1 ppm. OSHA currently requires in 29 CFR 1910.1028 that workers be provided with and required to wear and use the “most protective” respirators in concentrations exceeding 1,000 ppm (i.e., 1,000 x ...

Benzene vapors are irritating to the respiratory tract and eyes. Breathing benzene vapors results in adverse health effects related to the central nervous system including drowsiness, dizziness, rapid heart rate, headache, lightheadedness, nausea, tremors, impaired gait, confusion, loss of consciousness, shortness of breath, respiratory ...

Benzene. Related Pages. Synonyms & Trade Names Benzol, Phenyl hydride CAS No. 71-43-2 RTECS No. CY1400000 ...

Benzene. The final OSHA Benzene standard in 1910.1028 applies to all occupational exposures to benzene except some subsegments of industry where exposures are consistently under the action level (i.e., distribution and sales of fuels, sealed containers and pipelines, coke production, oil and gas drilling and production, natural gas processing, and the percentage exclusion for …

Determine concentration, C, of benzene in the injected sample, V (mL): NOTE: Some GCs will perform this calculation electronically. EVALUATION OF METHOD: This method was evaluated over the range 0.03 to 100 ppm benzene using a Photovac 10S portable GC. Certified standard gas mixtures of benzene in air were obtained from Scott Specialty Gases Inc.,

benzene a 3.52 toluene a 6.13 ethy lbenz ene a 10.65 o-xy lene a 12.92 m-xy lene a 11.33 p-xy lene a 11.04 cumene b 18.61 p-ter t-bu ty lt oluene b 21.45 "-methyl sty rene b 19.99 $-methyl sty rene b 20.82 styrene b 18.33 a Separation achieved using a 30-m Stabilwax fused silica capillary colum. b Separation achieved using a 30-m Rtx-35 fuse d ...

2018年11月16日 · NIOSH Analytical Method, 1994: Benzene, by portable GC, 3700: NIOSH Analytical Method, 1994: Hydrocarbons, aromatic, 1501: NIOSH Analytical Method, 1994: Hydrocarbons, BP 36-126 degree C, 1500: NTP 14th Report on Carcinogens,2016:Known to be a human carcinogen: NTP Carcinogenesis studies; on test (prechronic studies), October 2000: …

NIOSH/OSHA. Up to 800 ppm: (APF = 10) Any chemical cartridge respirator with organic vapor cartridge(s)* (APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister

Benzene (1910.1028) Airborne Concentration or Condition of Use Required Respirator < or = 10 ppm (parts per million) Half-mask air-purifying respirator with organic vapor cartridge. < or = 50 ppm (1) Full-facepiece respirator with organic vapor cartridges; or (2) Full-facepiece gas mask with chin-style canisters*. < or = 100 ppm