Chemical Sampling Information
	Isobutyl Acetate
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: Isobutyl ester of acetic acid; 2-Methylpropyl acetate; 2-Methylpropyl ester of acetic acid; beta-Methylpropyl ethanoate OSHA IMIS Code Number: 1534 Chemical Abstracts Service (CAS) Registry Number: 110-19-0 NIOSH, Registry of Toxic Effects (RTECS) Identification Number: AI4025000 Department of Transportation Regulation Number (49 CFR 172.101) and Guide: 1213 129 [27 KB, PDF] NIOSH Pocket Guide to Chemical Hazards, Isobutyl Acetate: 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 -- 150 ppm, 700 mg/m3 TWA OSHA Permissible Exposure Limit (PEL) for Construction Industry: 29 CFR 1926.55 Appendix A -- 150 ppm, 700 mg/m3 TWA OSHA Permissible Exposure Limit (PEL) for Maritime: 29 CFR 1915.1000 Table Z-Shipyards -- 150 ppm, 700 mg/m3 TWA American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): 150 ppm, 713 mg/m3 TWA National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 150 ppm, 700 mg/m3 TWA Health Factors NIOSH Immediately Dangerous To Life or Health Concentration (IDLH): 1,300 ppm LEL Potential symptoms: Irritation of eyes, skin, upper respiratory system; cough, sore throat; headache, dizziness, drowsiness; anesthesia; in animals: narcosis. INGES. ACUTE: nausea. Health Effects: Irritation-Eye, Nose, Throat---Moderate (HE15); Narcosis (HE8); Explosive, Flammable (HE18) Affected organs: Eyes, skin, respiratory system, CNS Notes: Vapor/air mixtures may be explosive. The IDLH is 10% of the lower explosive limit (1.3%). Listed among FDA’s “food additives permitted for direct addition to food for human consumption” (21 CFR 172.515) Date Last Revised: 02/08/2006 Literature Basis: NIOSH Pocket Guide to Chemical Hazards: Isobutyl Acetate. International Chemical Safety Cards (WHO/IPCS/ILO): Isobutyl acetate. Pohanish, R.P. (editor): Butyl Acetates. In, Sittig’s Handbook of Toxic and Hazardous Chemicals and Carcinogens, Fourth Ed., Vol. 1. Norwich, NY: Noyes Publications, William Andrew Publishing, 2002, pp. 392-395. Monitoring Methods used by OSHA Laboratory Sampling/Analytical Method: sampling media: Charcoal Tube (100/50 mg sections, 20/40 mesh) analytical solvent: Carbon Disulfide maximum volume: 12 Liters   maximum flow rate: 0.05 L/min (TWA) maximum volume: 0.75 Liter   maximum flow rate: 0.05 L/min (STEL) current analytical method: Gas Chromatography; GC/FID method reference: OSHA Analytical Method (OSHA 1009) method classification: Fully Validated sampling media: Diffusive Sampler: 3M 3520 Organic Vapor Monitor; SKC 575-002 Passive Sampler analytical solvent: Carbon Disulfide minimum time: 15 to 240 Minutes current analytical method: Gas Chromatography; GC/FID method reference: OSHA Analytical Method (OSHA 1009) method classification: Fully Validated note: Persons using diffusive samplers to monitor workplace air must ensure that the sampling devices are properly closed before transporting such devices to the laboratory for analysis. The device will continue to sample until properly closed. Diffusive sampler accessories used for analysis of samplers must be included with transported samples. Persons using such devices must provide sampling-site station barometric pressure and temperature to the analytical laboratory to improve accuracy of sampling results. sampling media: Charcoal Tube (100/50 mg sections, 20/40 mesh) analytical solvent: Carbon Disulfide alternate analytical solvent: (99:1) Carbon Disulfide:Dimethylformamide alternate analytical solvent: (95:5) Methylene Chloride:Methanol maximum volume: 10 Liters   maximum flow rate: 0.2 L/min current analytical method: Gas Chromatography; GC/FID method reference: NIOSH Analytical Method (NIOSH 1450) [107 KB, PDF] method classification: Fully Validated note: Samples should be refrigerated as soon as possible after sampling and sent cold to the laboratory. 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.