Standard Code | Standard Title | Standard Class | Order |
---|---|---|---|
HG/T 3023-1989 |
Photographic grade sodium thiosulfate, crystilline |
China Chemical Industry
Standards Photographic grade sodium |
English PDF |
HG/T 3022-1989 |
Photographic grade sodium sulfite, anhydrous |
China Chemical Industry
Standards Photographic grade sodium |
English PDF |
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