GBZ2.1-2007 - OELs for hazardous chemical agents (CN)
MAC CN (mg/m3) 20 (2000~3000m)
MAC CN (mg/m3) 15 (>3000m)
PC-STEL CN (mg/m3) 30
PC-TWA CN (mg/m3) 20
H: 220Extremely flammable gas
H: 280Contains gas under pressure; may explode if heated
H: 331Toxic if inhaled
H: 360 DMay damage the unborn child.
H: 372Causes damage to organs (state all organs affected, if known) through prolonged or repeated exposure (state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard)