BS EN ISO 19340:2017 Water quality. Determination of dissolved perchlorate. Method using ion chromatography (IC)

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

ISO/TS 19620:2018 Water quality – Determination of arsenic(III) and arsenic(V) species – Method using high performance liquid chromatography (HPLC) with detection by inductively coupled plasma mass spectrometry (ICP-MS) or hydride generation atomic fluorescence spectrometr

Link: ISO/TS 19620:2018 Water quality – Determination of arsenic(III) and arsenic(V) species – Method using high performance liquid chromatography (HPLC) with detection by inductively coupled plasma mass spectrometry (ICP-MS) or hydride generation atomic fluorescence spectrometr
Source: BSI Standards

BS ISO 20297-1:2017 Industrial trucks. Lorry-mounted trucks Safety requirements and verification

Flammable atmospheres
Conformity
Verification
Hazards
Classification systems
Chemical composition
Gases
Dust
Approval testing
Health and safety requirements
Manually-operated devices
Mist
Industrial trucks
Safety measures
Flammable materials
Vapours
Operating conditions
Occupational safety
Marking
Instructions for use
Carbon disulfide
Explosive atmospheres

Link: BS ISO 20297-1:2017 Industrial trucks. Lorry-mounted trucks Safety requirements and verification
Source: BSI Standards