ISSN: 1945-7553
CODEN: JTEVAB
Page Count: 8

Complementary Statistical Methodology for Precision and Bias Determination of Test Methods from Collaborative Studies on Analysis of Solutes in Water Cited in ASTM Standard Practice D 2777-86

Goddard, MJ
Senior Statistician and Research Scientists, Environmental Health Directorate, Health Protection Branch, Health and Welfare Canada, Ottawa,

Malaiyandi, M
Senior Statistician and Research Scientists, Environmental Health Directorate, Health Protection Branch, Health and Welfare Canada, Ottawa,

(Received 7 August 1987; accepted 14 January 1988)

Abstract

ASTM Standard Practice D 2777-86 provides simplified numerical methods for the statistical analysis of collaborative tests of chemical assays. Herein, we discuss the critical assumptions underlying the statistical methods in the standard practice. Further statistical analyses are discussed to indicate additional information which may be obtained through a more rigorous statistical treatment.

Keywords:
quality assurance, bias, precision, water quality

Paper ID: JTE11076J
DOI: 10.1520/JTE11076J
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