DIN EN ISO 7686-2005 塑料管和配件.不透明度的测定

标准号：DIN EN ISO 7686-2005
中文标准名称：塑料管和配件.不透明度的测定
英文标准名称：Plastics pipes and fittings - Determination of opacity (ISO 7686:2005); English version of DIN EN ISO 7686
标准类型：G33
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：G33
国际标准分类号：23.040.20;23.040.45
适用范围：This International Standard specifies a method for the determination of the opacity of plastics pipes andfittings.Annex A gives guidance on the light transmission of opaque pipes and fittings.NOTE It is necessary for a pipe or fitting used for water supply which is exposed to visible light during service to besufficiently opaque to prevent algae growth.