... unquestionable and higher accuracy. These 14 THE LABOATORY QUALITY' ASSURANCE SYSTEM Third Edition primary standards, in turn, should be certified by NIST or another recognized organization ... use audit and cruditor in this work. 24 THE LABOMTORY QUALITY ASSURANCE SYSTEM Third Edition A Manual of Quality Procedures and Forms Thomas A. Ratliff WILEY- INTERSCI ... and others, and for reference material on them, see Juran’s Quality Assurance Handbook, 4th Edition, Chapter 10. References Adams, M., Bounds, G., Ranney, G., and Yorks, L. 1994....