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International Standard Category: Auxiliary materials and additives for plastics |
Category No.: | 83.040.30 | Valid Status: | superseded |
Issued Organization: | General Administration of Quality Supervision, Inspection and Quarantine of PRC | Issued Date: | 2002-05-29 |
Implemented Date: | 2002-12-1 | Abolished Date: | 2008-10-01 |
Superseded Standard.: | GB/T 3780.5-2008 Carbon black - Part 5:Determination of specific surface area-CTAB test method |
Superseded Date: | 2008-10-1 |
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