ASTM E3330-22
Standard Guide for Contents of Documentation and Statistical Treatments for Reference Materials for Metals, Ores, and Related Materials

Standard No.

ASTM E3330-22

Release Date

2022

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM E3330-22

Scope

1.1 This guide is designed to explain and to clarify documentation that accompanies an RM or a certified reference material (CRM). It explains the contents of certificates of analysis for CRMs and product information documents for RMs, based on existing international standards and guides. It briefly touches on the minimum requirements for a label attached to the CRM/RM unit or unit container and to the package containing the unit or unit container. 1.2 This guide provides some basic guidance on calculation of consensus values and uncertainty estimates for CRMs and RMs with examples of approaches commonly used by national metrology institutes and suggestions for sources of information. 1.3 Units—The values stated in SI units are to be regarded as the standard, whenever applicable. Values can be traceable to other higher-order reference systems, including Rockwell Hardness, pH, and other systems defined by an international standard or peer-reviewed publication. 1.4 Contents—Sections and topics within this guide are enumerated below: Section Title 2 Referenced Documents 3 Terminology 4 Summary of Guide 5 Significance and Use 6 Contents of a Certificate of Analysis or Reference Material Documentation 7 Labels 8 Technical and Statistical Evaluations 9 Procedures for Consensus Value Calculations 10 Estimation of Uncertainty 11 Reporting Values and Uncertainty Estimates 12 International System of Units 13 Keywords Appendix X1 Working Near Zero Appendix X2 Working Near 100 % Appendix X3 Censored Values Appendix X4 Examples of Language for Sections of a Certificate of Analysis 1.5 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ASTM E3330-22 Referenced Document

• ANSI/NCSL Z540-2-1997 U.S. Guide to the Expression of Uncertainty in Measurement
• ASTM E1447 Standard Test Method for Determination of Hydrogen in Titanium and Titanium Alloys by the Inert Gas Fusion Thermal Conductivity Method
• ASTM E18 Standard Test Methods for Rockwell Hardness of Metallic Materials*， 2022-05-01 Update
• ASTM E29 Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
• ASTM E2972 Standard Guide for Production, Testing, and Value Assignment of In-House Reference Materials for Metals, Ores, and Other Related Materials
• ASTM E382 Standard Test Method for Determination of Crushing Strength of Iron Ore Pellets

ASTM E3330-22 history

• 2022 ASTM E3330-22 Standard Guide for Contents of Documentation and Statistical Treatments for Reference Materials for Metals, Ores, and Related Materials