標(biāo)準(zhǔn)號(hào)：ISO 3363-1976
中文標(biāo)準(zhǔn)名稱：工業(yè)用氟氯化烴 酸度的測(cè)定 滴定法
英文標(biāo)準(zhǔn)名稱：Fluorochlorinated hydrocarbons for industrial use; Determination of acidity; Titrimetric method
標(biāo)準(zhǔn)類型：G15
發(fā)布日期：1999/12/31 12:00:00
實(shí)施日期：1999/12/31 12:00:00
中國標(biāo)準(zhǔn)分類號(hào)：G15
國際標(biāo)準(zhǔn)分類號(hào)：71.080.20
適用范圍：Applicable to products the acidity of which is between 2 mol and 200 mol of univalent acid per kg. Two procedures are given: one is applicable to liquid products (R11, R113, etc.) and the other one to gaseous (R12, R22, etc.). The principle consists in extraction of the acids by water. Titration of the acids in the aqueous phase with standard volumetric sodium hydroxide solution in the presence of bromocresol green as indicator. A figure shows an apparatus for absorption of acids for products which are gaseous at ordinary temperatures.