JJF 1059.1-2012 Active National Metrology Technical Specifications JJF

JJF 1059.1-2012 Evaluation and Expression of Uncertainty in Measurement

Publish Date: 2012-12-03 Implement Date: 2013-06-03 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: JJF 1059.1-2012

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: -

Publish Date: 2012-12-03

Implement Date: 2013-06-03

Pages: 61 pages

Scope

a) The general methods for evaluating and expressing measurement uncertainty specified in this standard are applicable to various accuracy levels in the field of measurement, such as:
1) Establishment and comparison of national measurement standards and measurement standards at all levels;
2) Determination of standard materials and publication of standard reference data;
3) Preparation of technical documents such as measurement methods, verification procedures, verification system tables, and calibration specifications;
4) Expression of measurement results and measurement capabilities in metrological qualification, metrological confirmation, quality certification, and laboratory accreditation;
5) Calibration and verification of measurement instruments and other metrological services;
6) Measurement in fields such as scientific research, engineering, trade settlement, medical and health, safety protection, environmental monitoring, and resource protection.
b) This standard mainly involves the measurement uncertainty of the estimated value of a measured quantity that is clearly defined and can be represented by a unique value. As for the measured quantity that takes the form of a distribution of values or depends on one or more parameters (e.g., with time as the independent variable), the description of the measured quantity should be a set of quantities, and its distribution and interrelationships should be provided.
c) This standard is also applicable to the evaluation and expression of uncertainty in experiments, measurement methods, measurement devices, and the design and theoretical analysis of complex components and systems.
d) This standard is mainly applicable to the following conditions:
1) It can be assumed that the probability distribution of the input quantity is symmetric;
2) It can be assumed that the probability distribution of the output quantity is approximately normal or t-distributed;