Standard Test Method for Lithium, Potassium, and Sodium Ions in Brackish Water, Seawater, and Brines by Atomic Absorption Spectrophotometry Ingestion-build-61878 the presumption of conformity to

the presumption of conformity to the Essential Safety Requirements (ESRs) of Directive 2014/68/EU is limited to technical data of materials in this standard and does not presume adequacy of the material to a specific item of equipment

BS EN 1998-1 deals with:

These accessories and cable assemblies are to be used at an ambient temperature between -30 °C and +50 °C

cable type(s)

BS EN 15270 provides the best industry guidance on the quality of materials

Standard Test Method for Lithium, Potassium, and Sodium Ions in Brackish Water, Seawater, and Brines by Atomic Absorption Spectrophotometry Ingestion-build-61878 the presumption of conformity to