Gas Metrology Group: CRM Document

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CONTENTS

1. INTRODUCTION
   • Cover Page
   • ABSTRACT and FORWARD
2. NIST TRACEABLE REFERENCE MATERIALS
   • 2.1 Description
   • 2.2 Preparation
   • 2.3 Analysis
3. SUGGESTED ANALYTICAL PROCEDURE
   • 3.1 Description
   • 3.2 First Analysis
   • 3.3 Second Analysis
   • 3.3.1 Stability and Homogeneity
   • 3.3.2 Estimation of the Uncertainty of the CRM
4. AUDIT OF THE CRM
   • 4.1 Introduction
   • 4.2 Environmental Protection Agency Audit Progress
   • 4.2.1 Selection of Samples
   • 4.2.2 Analysis
   • 4.2.3 Report of Results
   • 4.3 Examination of Results
   • 4.4 Certification
5. ACKNOWLEDGEMENTS
6. APPENDICES
   • Appendix A. Statistical Analysis of Data
   • Appendix B. Report Forms
   • Appendix C. Carbon Monoxide
   • Appendix D. Nitric Oxide in Nitrogen
   • Appendix E. Sulfur Dioxide in Nitrogen
   • Appendix F. Propane
   • Appendix G. Extension of Certification (Recertification) and Date-of-Sale Certification
   • Appendix H. Oxygen in Nitrogen
   • Appendix I. Carbon Dioxide in Nitrogen

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