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Standard Insuued on: 2009-10 |
Category No.: | HJ | Valid Status: | superseded |
Issued Organization: | Issued Date: | 2009-10-20 | |
Implemented Date: | 2009-12-1 | Abolished Date: | |
Superseded Standard.: | HJ 504-2009/XG1-2018 Ambient air-Determination of ozone-Indigo disulphonate spectrophotometry , includes Amendment 1 |
Superseded Date: | 2018-9-1 |
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