標(biāo)準(zhǔn)號：DIN EN ISO 7686-2005
中文標(biāo)準(zhǔn)名稱：塑料管和配件.不透明度的測定
英文標(biāo)準(zhǔn)名稱：Plastics pipes and fittings - Determination of opacity (ISO 7686:2005); English version of DIN EN ISO 7686
標(biāo)準(zhǔn)類型：G33
發(fā)布日期：1999/12/31 12:00:00
實施日期：1999/12/31 12:00:00
中國標(biāo)準(zhǔn)分類號：G33
國際標(biāo)準(zhǔn)分類號：23.040.20;23.040.45
適用范圍：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.