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Database: 189759 (19 Oct 2025)
QB 497-1981 English PDF
Standard ID
Contents [version]
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Standard Title (Description)
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PDF
QB 497-1981
English
RFQ
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3 days [Need to translate]
(Photographic film)
Obsolete
QB 497-1981
Standard similar to QB 497-1981
QB/T 1995
Basic data
Standard ID
QB 497-1981 (QB497-1981)
Description (Translated English)
(Photographic film)
Sector / Industry
Light Industry Standard
Adopted Standard
ISO 5-6-74, NEQ; ISO 732-82, NEQ; ISO 4330-79, NEQ; ISO 6221-80, NEQ
Regulation (derived from)
Industry-Science (2010) No. 77