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prEN 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 (ISO/DIS 12624:2021)

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ISO/DIS 12624; prEN ISO 12624
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Põhitekst
04.04.2002
Põhitekst
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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