建筑应用件用建筑物保温制品.指定温度和湿度条件下水分平衡调节

[中文适用范围]： 本国际标准规定了在 (23 ± 2) °C 和 (50 ± 5) % 相对湿度下调节隔热产品以平衡水分含量的设备和程序。 它也适用于具有模制表皮的隔热产品，但通常与饰面产品或具有其他表面处理的产品无关。 注 1：通常规定的水分含量是在（23±2）℃和（50±5）%相对湿度下大气和产品之间平衡的结果。 如果产品必须适应其他相对湿度，也可以使用本国际标准。 注 2：由于滞后效应，水分平衡可能会有所不同，具体取决于平衡是通过吸收还是通过解吸达到的。 此外，达到完美平衡可能需要很长时间。 因此，需要在一定精度内接受平衡。 注 3：对于不吸湿的产品，不需要调节。 尽管如此，在测试前应确保表面没有水。 [外文原描述]： This International Standard specifies equipment and procedures to condition a thermal insulating product to equilibrium moisture content at (23 ± 2) °C and (50 ± 5) % relative humidity. It is also applicable to thermal insulating products with moulded skins but is not normally relevant for faced products or for products with other surface treatments. NOTE 1 The normally specified moisture content is the result of the equilibrium between the atmosphere and the product at (23 ± 2) °C and (50 ± 5) % relative humidity. This International Standard can also be used if a product has to be conditioned to other relative humidities. NOTE 2 The moisture equilibrium may, due to hysteresis effects, differ depending on whether the equilibrium has been reached by absorption or by desorption. In addition, perfect equilibrium can require a very long time to be reached. Therefore, it is necessary to accept equilibrium within a certain accuracy. NOTE 3 For products that do not absorb moisture, conditioning is not needed. It should, nevertheless, be ensured that there is no water on the surface before testing.