refrigerant gas r142b 1.wholly-owned two factories 2.ISO 9001 Certified & SGS certificated 3.about 10 years export ... ; Recyclable cylinder 400L, 800L, 1000L; ISO-Tank.Quality standard : Purity, %≥99.8Moisture, PPm≤10Acidity, PPm≤0.1Vapor Residue, PPm≤100AppearanceColorless, No ... reply immediatly when we received your email!) refrigerant gas r142b with 99.8% purity