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GB/T 14838-2009: Rubber and rubber products -- Determination of precision for test method standards
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GB/T 14838-1993	English	RFQ	ASK	6 days [Need to translate]	Rubber and rubber products. Determination of precision for test method standards

GB/T 14838-2009: Rubber and rubber products -- Determination of precision for test method standards

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Rubber and rubber products-Determination of precision for test method standards ICS 83.060; 83.140.01 G40 National Standards of People's Republic of China GB/T 14838-2009/ISO /TR9272.2005 Replacing GB/T 14838-1993 Rubber and rubber products test method standards Determination of precision (ISO /T R9272.2005, IDT) Posted 2009-06-15 2010-02-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Table of Contents

Introduction Ⅲ Introduction Ⅳ 1 Scope 1 2 Normative references 1 3 Terms and definitions 4 Applications 5 5 Determination of precision. the level of precision and a two-level precision 6 Step 6 tissue between laboratory test program 7 7 a level of precision analysis Overview 9 8 a level of precision. the analysis step 112 9 a level of precision. the analysis step 215 10 a level of precision. the final analysis Step 3 --- 15 precision results 11 two-level precision. Analysis of test results 15 black 12 standard test method in terms of format and precision levels and a two-level precision requirements for the data table 17 Worksheet layout and sequence data calculation formula in Appendix B (normative) precision parameter worksheet --- Recommended 23 Annex C (normative) were excluded outliers substitute value calculation program 28 Annex D (normative) to determine the accuracy of the test instance --- Mooney viscosity 31 Appendix E (Informative Appendix) GB/T 6379 and the new developments in the context of determining the precision of 64 References 65 GB/T 14838-2009/ISO /TR9272.2005

Foreword

This standard is identical with the international standard ISO /T R9272.2005 "Rubber and rubber products - Determination of precision for test method standards" (In English). This standard is equivalent translation ISO /T R9272.2005. This standard replaces GB/T 14838-1993 "Rubber and rubber products - Determination of precision for test method standards." For ease of use, this standard also made the following editorial changes. The term a) "The technical report" to the "standard"; b) As an alternative to the decimal by decimal comma ",". ","; c) Remove the Foreword International Standard Technical Report. This standard and GB/T 14838-1993 main differences. Morrison, thus reg structure and content has undergone major changes, no correspondence, except for the following amendments, the all new content; --- Modify Definition 6 (1993 edition 3.1.1.1,3.1.1.2,3.1.1.3,3.1.2.2,3.1.2.5 , 3.1.2.6; edition 3.2.2,3.2.3,3.2.4,3.2.6,3.2.8,3.2.10); --- Revised program of inter-organizational precision test chamber (1993 edition Chapter 5; edition Chapter 6). The Standard Appendix A, Appendix B, Appendix C and Appendix D is normative appendix, Appendix E is an information appendix. The standard proposed by China Petroleum and Chemical Industry Association. This standard by the National Rubber and rubber products Standardization Technical Committee (SAC/TC35) centralized. This standard was drafted. Rubber Group in Shenyang Rubber Research Institute. The main drafters of this standard. Yan-Fen Zhang. This standard replaces the standards previously issued as follows. --- GB/T 14838-1993. GB/T 14838-2009/ISO /TR9272.2005

Introduction

Precision Standard Test Method for mainly domestic GB/T 6379, which is a basic criterion for determining the repeatability and reproducibility Precision As well as the degree of accuracy and bias is called the concept of precision provides basic statistical methods and calculation rules. However, in the past A special case of the level of precision of the program, known as the "two-level precision" procedures applicable to test carbon black industry. Both are using the same Different culling program handled as outliers inconsistent data values. "Two level of precision" in each database program unit or material/real Copy number of aspects of the laboratory is a unique combination.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 6379 (all parts) of measurement methods and results Accuracy (trueness and precision) [idtISO 5725 (all parts)] ISO 3534-1 Statistics - Vocabulary and symbols - Part 1. Probability and general statistical terms

3 Terms and Definitions

3.1 General Of this standard, the 3.3 and the terms and definitions given in 3.2 revised GB/T 6379 in terms and definitions apply. turn off Other terms for certain types of precision are described in 5.3. By the terms given in the definition of the nature of the material to be tested can be To better understand these terms. 3.2 GB/T 6379 term GB/T 6379 term, the general cited ISO 3534-1, under the following conditions apply. a) the definition does not handle its integrated ISO /T C45 Standard Test Methods for determining the precision of procedures required in contradiction; b) When they are given suitable information and increase understanding of the definition of the task. In this section of the GB/T 6379 term notes increased to a deeper understanding of the accuracy ISO /T C45 test methods determine. 3.2.1 Agreed upon for comparison standard value, it comes from. a) confirm the theoretical value or values \u200b\u200bbased on scientific principles; b) certification based on the specified value or values \u200b\u200bof the experimental work of some national or international organization; GB/T 14838-2009/ISO /TR9272.2005 ...