ANSI/ASQ Z1.9-2003 (R2018) pdf download,Sampling Procedures And Tables For Inspection By Variables For Percent Nonconforming.
ANSI/ASQ Z1.9 was prepared to meet a need for the use of standard sampling plans for inspection by variables in procurement,supply and storage,and maintenance inspection operations.The variables sampling plans apply to a single quality characteristic which can be measured on a continuous scale,and for which quality is expressed in terms of percent non-conforming.The theory underlying the development of the variables sampling plans,including the operating characteristic curves,assumes that measurements of the quality characteristics are independent,identically normally distributed random variables.
ANSI/ASQ Z1.9 establishes sampling plans and procedures for inspection by variables for use in procurement,supply and storage,and maintenance inspection operations.When applicable this standard shall be referenced in the specification,contract,or inspection instructions,and the provisions set forth herein shall govern.
