This Document Has Been Superseded
A newer publication replaces it: BSI BS EN ISO 12624
Thermal insulating products for building equipment and industrial installations. Determination of trace quantities of water soluble chloride, fluoride, silicate, sodium ions and pH
This standard speci-fies the equipment and procedures for determi-ning 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.
The standard is applicable to thermal insula-ting products.
NOTE The determination of these parameters may be relevant for thermal insula-ting products intended for application to stainless austenitic steel surfa-ces.
The presence of chloride, fluoride, silicate and sodium ions under certain conditions may influen-ce the risk of stress corrosion cracking.
See informative annex B for further information.
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