AS/NZS ISO 33403:2024
Reference materials - Requirements and recommendations for use
Standard identically adopts ISO 33403:2024 which describes good practice in using reference materials (RMs), and certified reference materials (CRMs) in particular, in measurement processes. These uses include measurement methods assessment, quality control, assigning values to materials, calibration, and establishing conventional scales. This document also relates key characteristics of various types of RMs to the different applications.
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AS/NZS ISO 33403:2024 Requirements and recommendations for use
Preface
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
5 Conventions
6 RMs and their role in measurement
6.1 Common applications of RMs
6.2 Property values
6.2.1 General
6.2.2 Specification of the property
6.3 Uncertainty statement
6.4 Traceability statement
7 Handling of RMs and CRMs
8 Assessment of precision
8.1 General
8.2 Number of replicate measurements
8.3 Requirements with respect to the RM
8.4 Measurement
8.5 Data treatment
8.6 Calculation and assessment of precision
9 Bias assessment
9.1 General
9.2 Approach to bias checking
9.3 Utilizing bias data
10 Calibration
10.1 General
10.2 Practical considerations for calibration
10.3 Calibration models
11 Assigning values to other materials
11.1 General
11.2 Pure substances
11.3 Preparation of calibrants
12 Conventional scales
13 Selection of RMs and CRMs
13.1 General
13.2 Selection of a CRM
13.3 Selection of RMs
13.4 Relevance to the measurement system
Annex A (informative) Calibration models and associated uncertainty models
Annex B (informative) Decision errors
Annex C (informative) Example of conventional scales
Bibliography
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AS/NZS ISO 33403:2024 Requirements and recommendations for use
Preface
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
5 Conventions
6 RMs and their role in measurement
6.1 Common applications of RMs
6.2 Property values
6.2.1 General
6.2.2 Specification of the property
6.3 Uncertainty statement
6.4 Traceability statement
7 Handling of RMs and CRMs
8 Assessment of precision
8.1 General
8.2 Number of replicate measurements
8.3 Requirements with respect to the RM
8.4 Measurement
8.5 Data treatment
8.6 Calculation and assessment of precision
9 Bias assessment
9.1 General
9.2 Approach to bias checking
9.3 Utilizing bias data
10 Calibration
10.1 General
10.2 Practical considerations for calibration
10.3 Calibration models
11 Assigning values to other materials
11.1 General
11.2 Pure substances
11.3 Preparation of calibrants
12 Conventional scales
13 Selection of RMs and CRMs
13.1 General
13.2 Selection of a CRM
13.3 Selection of RMs
13.4 Relevance to the measurement system
Annex A (informative) Calibration models and associated uncertainty models
Annex B (informative) Decision errors
Annex C (informative) Example of conventional scales
Bibliography
AS/NZS ISO 33403:2024
Online Library subscription information
Online library subscriptions provide a cost-effective solution for organisations of any size to access the latest standards, offering 24/7 access to a personalised catalogue. The service ensures subscribers have have the most up-to-date version of selected standards, incluing automatic updates for any amendments or versions. Pricing is dependent on the chosen standards and the number of concurrent users, with discounts applied from the standards PDF price. For customised subscriptions or further inquiries, contact the Online Library team.