標(biāo)準(zhǔn)號(hào)：ISO 6840-1982
中文標(biāo)準(zhǔn)名稱：陽離子表面活性劑(氫氯化物和氫溴化物) 臨界膠束濃度的測定 反離子活度測量法
英文標(biāo)準(zhǔn)名稱：Cationic surface active agents (Hydrochlorides and hydrobromides); Determination of critical micellization concentration; Method by measurement of counter ion activity
標(biāo)準(zhǔn)類型：G72
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)：G72
國際標(biāo)準(zhǔn)分類號(hào)：71.100.40
適用范圍：The determination is carried out as follows: Potentiometric determination of the chloride or bromide ion activity of a series of solutions of cationic surface active agents the concentration of which cover the expected micellization concentration. Plotting the graph of potential as a function of the logarithm of the concentration; the c.m.c. corresponds to the singularity on this curve. The method is applicable to purified cationic surface active agents (hydrochlorides and/or hydrobromides), which are soluble in water and which have a Krafft temperature below 60 degree Celsius.