History of sampling plan

1. 1.3 development of statistical sampling inspection 1949, JAN-STD- 105 1950, MIL-STD- 105A 1957. MIL-STD-4/KOOC-0/4/KOOC-0/958, MIL-STD-/KOOC-0/05A was replaced by MIL-STD-/KOOC-0/05B/KOOC-0/96/KOOC-0/year, and MIL was marked by the US military standard MIL-STD-. 194 1 In practical application, it was revised to "primary sampling and secondary sampling checklist" for product inventory. Shewhart put forward the control chart theory (SPC) in 1924, and it was applied in the 1940s. 1949 is based on the checklist of primary sampling and secondary sampling for counting adjustment for the first time. From 1960 to 1962, sampling experts from the United States, Britain and Canada formed an ABC working group, which was completely revised on the basis of 105C and developed a dual-use product suitable for this country. These three countries are given different codes: USA: MIL-STD- 105D Canada: 105-GP- 1 (civilian), CA-G 1 15 (military) UK: BS-95. MIL-STD- 105D was adopted by IEC (International Electrotechnical Commission) and named as IEC4 10, and ISO (International Standards Committee) named as ISO2859. China has issued 23 national standards for statistical sampling inspection, mainly GB/T2828 (counting type) and GB/T6378 (measuring type). GB/T 2828: 198 1 year edition GB/T 6378: 1986 edition.