GB/T 12938-1991
Active
GB/T 22401-2008
Active
National standards
GB/T 22401-2008 Photography—Processing chemicals—Specifications for anhydrous sodium metabisulfite
GB/T 22401-2008 Photography—Processing chemicals—Specifications for anhydrous sodium metabisulfite
Basic Information
Standard Code:
GB/T 22401-2008
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Photographic-grade chemicals
ICS Name:
Photographic chemicals
Publish Date:
2008-10-10
Implement Date:
2009-06-01
Pages:
7 pages
Scope
This standard specifies the purity requirements for photographic-grade chemicals such as anhydrous sodium metabisulfite and the test methods for verifying their purity.
Development Information
Referenced Standards
GB/T 20432.1-2006 Photography—Photographic-grade chemicals—Test methods—Part 1:General
GB/T 20432.5-2007 Photography—Photographic-grade chemicals—Test methods—Part 5:Determination of heavy metals and iron content
GB/T 20432.9-2007 Photography—Photographic-grade chemicals—Test methods—Part 9:Reaction to ammoniacal silver nitrate
Adopt standards
ISO 3627:2001
Related Standards
GB/T 20432.1-2006
Active
GB/T 20432.1-2006 Photography—Photographic-grade chemicals—Test methods—Part 1:General
GB/T 20432.4-2006
Active
GB/T 20432.4-2006 Photography—Photographic-grade chemicals—Test methods—Part 4:Determination of residue after ignition
GB/T 20433-2006
Active
GB/T 20433-2006 Photography—Processing chemicals—Specifications for ammonium thiosulfate solution
GB/T 20432.10-2007
Active
GB/T 20432.10-2007 Photography—Photographic-grade chemicals—Test methods—Part 10:Determination of sulfide content
GB/T 20432.11-2007
Active