標(biāo)準(zhǔn)號(hào)：ISO 1264-1980
中文標(biāo)準(zhǔn)名稱：塑料 氯乙烯均聚物和共聚物樹(shù)脂 水萃取物的pH值測(cè)定
英文標(biāo)準(zhǔn)名稱：Plastics; Homopolymer and copolymer resins of vinyl chloride; Determination of pH of aqueous extract
標(biāo)準(zhǔn)類型：G31
發(fā)布日期：1999/12/31 12:00:00
實(shí)施日期：1999/12/31 12:00:00
中國(guó)標(biāo)準(zhǔn)分類號(hào)：G31
國(guó)際標(biāo)準(zhǔn)分類號(hào)：83.080.10
適用范圍：Treatment of a test portion of resin with a given volume of an aqueous solution of sodium chloride previous neutralized to pH 7,0. After stirring and decanting, measurement of the potential difference existing between a glass electrode and a reference calomel electrode immersed in the liquid maintained at 23 鳦 and reading of this difference, expressed in pH units directly on th pH meter scale.