ISO 420:1994现行
Photography - Processing chemicals - Specifications for potassium bromide -
出版：International Organization for Standardization
专家解读视频
Establishes criteria for the purity of photographic grade potassium bromide. Also specifies the test methods to be used to determine the purity. Coverage includes: physical properties, hazardous properties, storage, apparatus, procedure, iron content, halide content, alkalinity, and reagents and glassware.
GB/T 22405-2008 - Identical
KS M ISO 420:2002 - Identical
BS ISO 420:1994 - Identical
UNI 6677:1970 - Equivalent
