标准号:IS 3225-1965
发布日期:1965/10/1 12:00:00
实施日期:1999/12/31 12:00:00
适用范围:1.1 This standard prescribes the methods for preparation of buffer solutions used in analytical and control laboratories in industry.1.1.1 Primary and secondary standard buffer solutions for calibration of pH meters are also included in this standard.