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PEL 25 ppm OSHA Specifically Regulated Chem icals/Carcino ens OSHA s ecifically regulated carcino en STEL 125 ppm OSHA Specifically Regulated Chem icals/Carcino ens OSHA specifically regulated carcinogen PEL 25 ppm California permissible exposure 87 mg/m3 limits for chemical contaminants (Title 8, Article 107 STEL 125 ppm California permissible exposure 435 mg/m3 limits for chemical contaminants (Title 8, Article 107 Biological occu ational exposure limits Component CAS-No. Parameters Value Biological Basis specimen Dichloromethane 75-09-2 Dichloromet 0.3 mg/I Urine ACGIH - hane Biological Exposure Indices BEI Remarks I End of shift As soon as possible after exposure ceases Derived No Effect Level DNEL Application Area tposure utes of Health effect Value Workers Inhalation Acute systemic effects 706 mg/m3 Workers Inhalation Long-term sstemic effects 353 mg/m3 Workers Skin contact Long-term sstemic effects 4750m /k BW/d Consumers Ingestion Long-termsystemic effects 0.06m /k BW/d Consumers Inhalation Long-term sstemic effects 88.3 mg/m3 Consumers Skin contact Long-term sstemic effects 2395m /k BW/d Consumers Inhalation Acute systemic effects 353 mg/m3 Predicted No Effect Concentration PNEC compartment Value Soil 0.583 mg/kg Sea water 0.194 m /I Fresh water 0.54 m /I Sea sediment 1.61 mg/kg Fresh water sediment 4.47 mg/kg Onsite sewage treatment plant 26 mg/1 Aquatic intermittent release 0.27 m /I 8.2 Exposure controls Appropriate engineering controls Immediately change contaminated clothing. Apply preventive skin protection. Wash hands and face after working with substance. Personal protective equipment Eye/face protection Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU). Safety glasses Sigma-Aldrich -270997 Page 5 of 12 The life science business of Merck KGaA, Darmstadt, Germany hAKUp10111a operates as MilliporeSigma in the US and Canada SiGN1a