BS EN ISO 8130-2-2010 粉末涂料.气体比较比重瓶测定密度(基准方法)

标准号：BS EN ISO 8130-2-2010
中文标准名称：粉末涂料.气体比较比重瓶测定密度(基准方法)
英文标准名称：Coating powders. Determination of density by gas comparison pyknometer (referee method)
标准类型：G51
发布日期：1993/4/15 12:00:00
实施日期：1993/4/15 12:00:00
中国标准分类号：G51
国际标准分类号：87.040
适用范围：This part of ISO 8130 specifies a method for thedetermination of the density of coating powdersusing a gas comparison pyknometer. It can be usedfor all types of coating powder, is simple to carry out,but requires more expensive instrumentation thanis often used for density determinations.The density of coating powders can also bedetermined using the liquid displacementpyknometer method described in ISO 8130-3. Theapparatus is relatively inexpensive, but the liquiddisplacement pyknometer method is liable to giveerroneous results, particularly if the powder swellsin contact with the displacement liquid used or thedisplacement liquid does not totally displace the airbetween the powder particles. The liquiddisplacement method is much slower in execution,less accurate and is only to be used if it can be shownthat the same results will be obtained as for the gascomparison pyknometer method.