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International Standard Category: Acids

GB/T 23855-2009    Liquid sulphur trioxide
液体三氧化硫;
Category No.:71.060.30 Valid Status:superseded
Issued Organization:AQSIQ, SAC Issued Date:2009-5-18
Implemented Date:2010-2-1 Abolished Date:2018-09-01
Superseded Standard.:GB/T 23855-2018 Liquid sulphur trioxide
Superseded Date:2018-9-1
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