标准摘要
[中文适用范围]: 本文件规定了一种在标准条件下进行的方法,用于制备和储存多组分涂料体系的样品,并随后通过测量特定性能来评估其适用期。 在短时间内(例如 3 小时)固化的反应体系的适用期终点非常接近凝胶点,因此需要根据以下方法测试其特定性能。 通过在指定时间段后确定特定性能来进行通过/失败测试,或者通过以方便的时间间隔重复测定来确定适用期。 本文件不适用于产品应用过程中的现场控制。 它旨在确定实验室中的“适用期”。 供应商在向用户提供建议时,可能会因实际原因(例如起始温度)对从该测试方法获得的值进行修改,因此应称为“实际适用期”。 [外文原描述]: This document specifies a method, carried out under standard conditions, for preparing and storing a sample of a multicomponent coating system and subsequently assessing its pot-life by measuring a particular property/ies. Reactive systems curing within a short period of time, e.g. 3 h, will have the end of their pot life so near to the gel point that they will need to be tested for that particular property in accordance with ISO 2535. The method can be carried out either as a pass/fail test by determining the particular property/ies after a specified period of time, or as determination of the pot life by repeating determinations at convenient intervals of time. This document is not intended for in situ control of products during their application. It is intended to determine "pot life" in the laboratory. The value obtained from this test method can be subject to modification by suppliers for practical reasons (e.g. starting temperature) when giving advice to users and should then be called the "practical pot life".
英文名称Paints and varnishes — Determination of the pot life of multicomponent coating systems — Preparation and conditioning of samples and guidelines for testing