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EVS-EN ISO 28721-3:2011

Vitreous and porcelain enamels - Glass-lined apparatus for process plants - Part 3: Thermal shock resistance (ISO 28721-3:2008)

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Kehtiv alates 04.05.2011
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ISO 28721-3:2008; EN ISO 28721-3:2011
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25.220.50 Emailpinded
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04.05.2011
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Põhitekst
This part of ISO 28721 specifies requirements for the thermal shock resistance of, and heating and cooling procedures for, glass-lined apparatus, components, accessories and pipes primarily used for process equipment in chemical plants. It specifies the limits of thermal shock resistance using diagrams (see Figure 1 and Figure 2). For glass-lined steel, a distinction is made between a thermal shock on the glass-lined side (produced by charging an apparatus) and a thermal shock on the steel side (produced by heating or cooling an apparatus). This part of ISO 28721 applies to operating temperatures from −25 °C to 230 °C. It is only applicable to enamelled unalloyed and low-alloy carbon steels.
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