This part of ISO 28721 specifies requirements for applies to quality requirements on thermal shock resistance as well as heating and cooling procedures of standardised glass-lined apparatus, components, accessories, and glass-lined 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 cooking an apparatus) The 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.
DIN EN ISO 28721-3-2011由德国标准化学会 DE-DIN 发布于 2011-06。
DIN EN ISO 28721-3-2011 在中国标准分类中归属于: A29 材料防护。
DIN EN ISO 28721-3-2011 釉瓷和搪瓷.加工厂用玻璃衬里器具.第3部分:抗 热震性(ISO 28721-3-2008);德文版本EN ISO 28721-3-2011 由 DIN EN 15159-3-2006 变更而来。
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