BS EN ISO 12624:2022 Thermal insulating products for building equipment and industrial installations. Determination of trace quantities of water-soluble chloride, fluoride, silicate, sodium ions and pH
1 Scope
This document specifies the equipment and procedures for determining trace quantities
of the water-soluble chloride, fluoride, silicate and sodium ions in an aqueous extract
of the product. It also describes a procedure for the determination of the pH of the
aqueous extract. It is applicable to thermal insulating products.
NOTE The determination of these parameters can be relevant for thermal insulating products
intended for application to stainless austenitic steel surfaces. The presence of chloride,
fluoride, silicate and sodium ions under certain conditions can influence the risk
of stress corrosion cracking. See Annex B for further information on general use of this document.
BS EN ISO 12624:2022 Referenced Document
ISO 10136-1 Glas and glassware; analysis of extract solutions; part 1: determination of silicon dioxide by molecular absorption spectrometry
ISO 10136-2 Glass and glassware; analysis of extract solutions; part 2: determination of sodium oxide and potassium oxide by flame spectrometric methods
BS EN ISO 12624:2022 history
2022BS EN ISO 12624:2022 Thermal insulating products for building equipment and industrial installations. Determination of trace quantities of water-soluble chloride, fluoride, silicate, sodium ions and pH