ISO 2456:1986 Preview
Surface active agents -- Water used as a solvent for tests -- Specification and test methods
This standard was last reviewed and confirmed in 2017. Therefore this version remains current.
The following requirements are specified: residue after evaporation, electrical conductivity, oxidizable matter expressed in oxygen content, absorbance at 254 nm and 1 cm cell optical path length: 0.01 units max., reactive silica content, surface tension. The corresponding methods of test are specified in an annex.
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