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ASTM Standard aims to resolve test result differences.

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June 25, 2012 - Proposed standard ASTM WK35585, Practice for Data Collection and Resolving Test Result Differences Between Buyer and Seller, will provide rational dispute resolution practice for contractors or material suppliers and agencies when test results from two different laboratories on same product differ. Some procedures described in standard include documentation to determine acceptable quality material, sample chain of custody, and determination of whether data comes from same population.

ASTM Road and Paving Committee at Work on Standard for Resolving Test Result Differences

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ASTM International
100 Barr Harbor Dr., Box C700
West Conshohocken, PA, 19428-2959

Press release date: June 21, 2012

W. CONSHOHOCKEN, Pa., -Buyers and sellers of road and paving materials will be the primary users of a proposed standard being developed by Subcommittee D04.94 on Statistical Procedures and Evaluation of Data, part of ASTM International Committee D04 on Road and Paving Materials.

According to James Moulthrop, senior consultant, Fugro Consultants Inc., and a D04 member, the purpose of the proposed standard, ASTM WK35585, Practice for Data Collection and Resolving Test Result Differences Between Buyer and Seller, will be to provide a rational dispute resolution practice for contractors or material suppliers and agencies when test results from two different laboratories on the same product differ.

"The goal is to provide a systematic way to resolve differences in a professional atmosphere," says Moulthrop.

Among the procedures to be described in WK35585 are the following:
Documentation to determine acceptable quality material;
Sample chain of custody;
Determination of whether data comes from the same population;
Determination of differences between sets of data; and
Determination of assignable cause(s) for differences between test results.

"The proposed standard has been needed to provide users of ASTM Committee D04 standards a rational sequential process for resolving test result differences," says Ervin Dukatz, Mathy Construction Co., Onalaska, Wis., and chairman, D04.94 on Statistical Procedures and Evaluation of Data. Dukatz notes that anyone interested in paving materials is welcome to join the subcommittee, which develops standards that make statistics accessible to buyers and sellers so that informed decisions can be made on test results.

ASTM International welcomes participation in the development of its standards. For more information on becoming an ASTM member, visit

ASTM International is one of the largest international standards development and delivery systems in the world. ASTM International meets the World Trade Organization (WTO) principles for the development of international standards: coherence, consensus, development dimension, effectiveness, impartiality, openness, relevance and transparency. ASTM standards are accepted and used in research and development, product testing, quality systems and commercial transactions.

For more news in this sector, visit or follow us on Twitter @ASTMTransport.

ASTM Committee D04 Next Meeting: June 26-28, June committee week, San Diego, Calif. Technical Contact: James Moulthrop, P.E., Fugro Consultants Inc., Austin, Texas, Phone: 512-977-1800,; Ervin L. Dukatz, Ph.D., P.E., Mathy Construction Co., Onalaska, Wis., Phone: 608-779-6392;

ASTM Staff Contact: Daniel Smith, Phone: 610-832-9727;

ASTM PR Contact: Barbara Schindler, Phone: 610-832-9603;
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