pH measurement
De-ionized water
Laboratory testing
Testing conditions
Electrical conductivity
Chemical analysis and testing
Water
Silicon dioxide
Determination of content
pH
Grades (quality)
Resistance measurement
Evaporation residue determination
Water testing
Colour tests
Distilled water
Spectrophotometry
Purity
Absorptance
Link: BS EN ISO 19340:2017 Water quality. Determination of dissolved perchlorate. Method using ion chromatography (IC)
Source: BSI Standards
