| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard | 
			| GB/T 4891-1985 | English | 439 | Add to Cart | Days<=4 | Choice of sample size to estimate the average quality of a lot or process | GB/T 4891-1985 | Obsolete | GB/T 4891-1985 |