Chemical Sampling Information
	Methyl hydrazine
Quick Links General Description Exposure Limits Health Factors Monitoring Search    [use word(s)/phrase] Table of Contents By Name A B C D E F G H I J K L M N O P Q R S T U V W X Y Z By CAS Number General Description Synonyms: MMH; Monomethyl hydrazine OSHA IMIS Code Number: 1794 IMIS Name History: Monomethyl Hydrazine prior to 5/23/08 Chemical Abstracts Service (CAS) Registry Number: 60-34-4 NIOSH, Registry of Toxic Effects (RTECS) Identification Number: MV5600000 Department of Transportation Regulation Number (49 CFR 172.101) and Guide: 1244 131 [27 KB, PDF] NIOSH Pocket Guide to Chemical Hazards, Methyl hydrazine: chemical description, physical properties, potentially hazardous incompatibilities, and more Exposure Limits OSHA Permissible Exposure Limit (PEL) for General Industry: 29 CFR 1910.1000 Z-1 Table -- 0.2 ppm, 0.35 mg/m3 Ceiling; Skin OSHA Permissible Exposure Limit (PEL) for Construction Industry: 29 CFR 1926.55 Appendix A -- 0.2 ppm, 0.35 mg/m3 Ceiling; Skin OSHA Permissible Exposure Limit (PEL) for Maritime: 29 CFR 1915.1000 Table Z-Shipyards -- 0.2 ppm, 0.35 mg/m3 Ceiling; Skin American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): 0.01 ppm, 0.02 mg/m3 Ceiling; Skin; Appendix A3 - Confirmed Animal Carcinogen with Unknown Relevance to Humans National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 0.04 ppm, 0.08 mg/m3 Ceiling (2 hours); Appendix A - NIOSH Potential Occupational Carcinogens Health Factors NIOSH Immediately Dangerous To Life or Health Concentration (IDLH): 20 ppm Potential symptoms: Eye, respiratory system irritation; vomiting, diarrhea; tremors, ataxia; anoxia, cyanosis; convulsions, (carcinogenic) Health Effects: Acute Lung, CNS and Blood damage (HE4) Mutagen/Suspect carcinogen (HE2); Suspect teratogen (HE5) Affected organs: CNS, respiratory system, liver, blood, CVS, eyes Literature Basis: International Chemical Safety Cards (WHO/IPCS/ILO): Methyl hydrazine. Monitoring Methods used by OSHA Laboratory Sampling/Analytical Method: sampling media: Sulfuric Acid coated Gas Chrom R Tube (30/60 mesh) minimum time: 15 Minutes   maximum flow rate: 1.0 L/min (Ceiling) current analytical method: High Performance Liquid Chromatography; HPLC/UV method reference: OSHA Analytical Method (OSHA 20) method classification: Not Validated All Trademarks are the property of their respective owners. Accessibility Assistance: Contact the OSHA Directorate of Science, Technology and Medicine at 202-693-2300 for assistance accessing PDF materials.