ISO 424:1994现行
Photography - Processing chemicals - Specifications for anhydrous sodium carbonate and sodium carbonate monohydrate
出版：International Organization for Standardization
专家解读视频
Establishes criteria for the purity of photographic grade anhydrous sodium carbonate monohydrate. Also specifies the test methods to be used to determine the purity. Coverage includes: physical properties, hazardous properties, reagents and glassware, and handling and storage.
BS ISO 424:1994 - Identical
UNI 6680:1970 - Equivalent
GB/T 22404-2008 - Identical
KS M ISO 424:2002 - Identical
