化学危险品等级数值含义数值英文解释含义R1Explosivewhendry干燥情况下就可发生爆炸Riskofexplosionbyshockfirctionfireor受冲击、摩擦、着火或其它点火源R2othersourcesofignition有爆炸危险Extremeriskofexplosionbyshockfriction受冲击、摩擦、着火或其它点火源R3fireorothersourcesofignition有极高爆炸危险R4Formverysensitiveexplosivesetalliccompounds生成极敏感的爆炸性金属化合物R5Heatingmaycauseanexplosion受热可能引起爆炸R6Explosivewithorwthutcontactwithair与空气或未与空气接触会发生爆炸R7Maycausefire可能引起火灾R8Contactwithcombustiblematerialmaycausefire与可燃物料接触可能引起火灾R9Explosivewhenmixedwithcombustiblematerial与易燃物混合时发生爆炸危险R10Flammable易燃的R11Highlyflammable高度易燃的R12Rxtremelyflammable极易燃性的R14Reactsviolentlywithwater与水剧烈的反应ReactsviolentlywithwaterliberatinghighlyR14/15flannablegases与水猛烈反应，释放出及易燃气体ContactwithwaterliberatinghighlyflammableR15gases与水形成很少量的易燃气体Contactwithwaterliberzatestoxichighly与水接触释放出有毒的，及易燃气R15/29flannablegas体R16Explosivewhenmixedwithoxidizingsubstances与氧化物质混合时发生爆炸R17Spontaneouslyflammableinair在空气中易自燃Inusemayformflammable/explisivevapiur-air使用时可形成易燃/爆炸性蒸汽空R18mixrure气混合物R19Mayfromexplisiveperoxides可能生成爆炸性过氧化物R20Harmfulbyinhalation吸入有害R20/21Harmfulbyinhalationandincontactwithskin吸入和与皮肤接触是有害的HarmfulbyinhalationincontactwithskinandR20/21/22ifswallowed吸入、与皮肤接触和吞食是有害的R20/22Harmfulbyinhalationandifswallowed吸入和吞食是有害的R21Harmfulincontactwithskin与皮肤接触是有害的R21/22Harmfulincontactwithskinandifswallowed与皮肤接触式和吞食是有毒的R22Harmfulifswallowed吞服是有害R23Toxicbyinhalation吸入有害R23/24Toxicbyinhalationandincontactwithskin吸入、与皮肤接触是有毒的ToxicbyinhalationandincontactwithskinandR23/24/25ifswallowed吸入、与皮肤接触和吞食是有毒的R23/25Toxicbyinhalationandifswallowed吸入和吞食是有毒的R24Toxicincontactwithskin与接触皮肤有毒R24/25Toxicincontactwithskinandifswallowed与皮肤接触和吞食是有毒的R25Toxicifswallowed吞食有害R26Verytoxicbyinhalation吸入有极高毒性R26/27Verytoxicbyinhalationandincontactwith吸入与皮肤接触有极高毒性VerytoxicbyinhalationincontactwithskinR26/27/28andifswallowed吸入与皮肤接触和吞食有极高毒性R26/28Verytoxicbyinhalationandifswallowed吸入和吞食有极高毒性R27Verytoxicincontactwithskin与皮肤接触有高毒R27/28Verytoxicincontactwithskinandinswallowed与皮肤接触或吞食有高毒R28Verytoxicifswallowed吞食有极高毒性R29Contaxtwithwaterliberate