ISO 17190的本部分规定了交联聚丙烯酸酯加热时质量损失的测定方法 （PA）水分含量在0%到5%之间（按质量计）的高吸水性粉末。方法是 精确到±0.1%以内。 一般来说，该方法预计适用于以下粉末状聚合物高吸水性材料: 在15°C至150°C的温度下自由流动。除水以外的物质，在该温度下易挥发 温度范围，会干扰。

This part of ISO 17190 specifies a method for determining the mass loss upon heating for cross-linked polyacrylate (PA) superabsorbent powders with a moisture content ranging between 0 % and 5 % by mass. The method is accurate to within ± 0,1 %. In general, this method is expected to be applicable to powdered polymeric superabsorbent materials that are free-flowing at temperatures between 15 °C and 150 °C. Substances other than water, that are volatile in this temperature range, will interfere.