标准编号：ISO 11528:2016
中文名称：建筑物和土木工程 密封剂 暴露于人工或自然风化后细裂纹和开裂的测定
英文名称：Buildings and civil engineering works — Sealants — Determination of crazing and cracking following exposure to artificial or natural weathering
发布日期：2016-08
标准范围
This International Standard specifies methods for the assessment of surface defects (crazing and cracking) on sealants after exposure to artificial or natural weathering.NOTE Sealants are weathered in the laboratory in order to simulate ageing processes occurring during natural weathering. Generally, valid correlations between ageing during artificial and natural weathering cannot be expected because of the large number of influencing factors. Certain relationships can only be expected if the effect of the important parameters (spectral distribution of the irradiance in their photochemically relevant range, temperature of the specimen, type of wetting, wetting cycle relative humidity) on the sealant is known. However, unlike natural weathering, testing in the laboratory is carried out taking into consideration a limited number of variables which can be controlled, and therefore, the results are more reproducible.
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