ASTM-D1749:2002 Edition

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D1749-93(2002) Standard Practice for Interlaboratory Evaluation of Test Methods Used with Paper and Paper Products

Published By	Publication Date	Number of Pages
ASTM	2002	8

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Category: ASTM

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Description

ASTM D1749-93-Reapproved2002

Historical Standard: Standard Practice for Interlaboratory Evaluation of Test Methods Used with Paper and Paper Products

ASTM D1749

Scope

1.1 The purpose of an interlaboratory study is to determine the variability in results caused by differences among laboratories following a prescribed test method, the consistency from material to material of this variability, and the type of additional standardization needed, if any. The study may be made to obtain information for improving the test method or to arrive at an estimate of the precision of an existing method for publication. It may also include a comparison of alternative test methods.

1.2 To achieve the objectives in 1.1 satisfactorily, it is essential that a sound statistical design be employed in the planning of an interlaboratory study. This practice gives the basic principles involved in the planning in order to make the data amenable to statistical analysis and interpretation.

1.3 This practice has been written for the task group chairman responsible for the preparation or the revision of a standard test method. It tells him what information he needs in order to properly plan an interlaboratory study (Sections ), it outlines the procedure for conducting the study (Section ), and it gives him background information for understanding the analysis (Section 12) and interpretation (Sections ) of the results.

1.4 While the services of a statistician are not absolutely necessary for the design, analysis, and interpretation of interlaboratory studies, questions often arise that could be readily answered by a statistician familiar with the analysis used herein. Hence, the task group chairman should arrange whenever possible to consult with a statistician both during the planning and during the analysis and interpretation.

1.5 This practice is similar to TAPPI T1200, which details the analysis using a set of typical data.

1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Keywords

interlaboratory testing; paper; interlaboratory evaluation of test methods used with paper/paper; products, practice

ICS Code

ICS Number Code 85.060 (Paper and board)

DOI: 10.1520/D1749-93R02

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents Formulating the Problem Preliminary Study Within One Laboratory
2	Study by Task Group Pilot Study First Interlaboratory Study Main Interlaboratory Study Decision on Standardization Independent Variables
3	Design
4	Analysis of Data Cleaning Up the Data Interpretation of the Analysis
5	Statement of Precision of Test Method Additional Information FIG. 1
6	A1. TECHNIQUE OF EVALUATING AN INSTRUMENT OR A TEST METHOD WITHIN ONE LABORATORY (3) A1.1 Possible Objectives of Evaluation of a Test Method A1.2 First Steps in Evaluation of Method A2. THE SENSITIVITY CRITERION (4,5) A2.1 Description of Term A2.2 Steps in the Comparison of Two Test Methods of Procedures by Means of the Sensitivity Criterion
7	A3. SAMPLE DATA SHEET REFERENCES FIG. A2.1

Additional information

Standard Title	D1749-93(2002) Standard Practice for Interlaboratory Evaluation of Test Methods Used with Paper and Paper Products
Published Code	ASTM
Publication Date	2002
Pages Count	8