BS 3900-J10-1998 涂料的试验方法.涂粉试验.第J10部分:涂粉沉淀效能试验

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标准号:BS 3900-J10-1998
中文标准名称:涂料的试验方法.涂粉试验.第J10部分:涂粉沉淀效能试验
英文标准名称:Methods of test for paints - Testing of coating powders - Determination of deposition efficiency of coating powders
标准类型:G50
发布日期:1998/9/15 12:00:00
实施日期:1998/9/15 12:00:00
中国标准分类号:G50
国际标准分类号:87.040
适用范围:This part of ISO 8130 is one of a series of standards dealing with the sampling and testing of paints, varnishes and related products. It specifies a method for determining the percentage by mass of a sprayed coating powder which is actually deposited on a standard test target when powder is sprayed at the target from a spray gun under standard conditions. The method is applicable to powders applied by corona charging or tribo charging. The method may be used to compare the deposition efficiency of different powders with the same gun or of different guns with the same powder. This method should only be used for comparison when powders or guns are evaluated consecutively, as the influence of the environment and the equipment can vary significantly with time and location. The results are dependent on the following properties of the powder: a) chemical composition; b) density; c) particle size distribution; d) particle shape; e) flow properties of its mixture in air; f) moisture content; and also on the test conditions, including: g) spray pattern produced by the gun; h) gun air pressure; i) gun voltage; j) gun polarity; k) air humidity.

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