GB/T 33303-2016 in English

VALID

Guide for evaluation of measurement uncertainty in coal analysis

Issued on:2016-12-13
Implemented on:2017-07-01
File Format:PDF
Delivery:Via email within 5 business days

Price(USD)： $310.00
$301.00

Standard No:	GB/T 33303-2016
Document status:	VALID
Title in English:	Guide for evaluation of measurement uncertainty in coal analysis
Title in Chinese:	煤质分析中测量不确定度评定指南
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 5 business days
Issued on:	2016-12-13
Implemented on:	2017-07-01
ICS Classification:	73.040-Coals
Chinese Classification:	D21-Coal analysis methods
Professional Classification:	GB-National Standard
Related Keywords:	measurement uncertainty measurement uncertainty assessment methods assessment coal quality analysis ash content measurement uncertainty taking ash content determination coal analysis introduction interpretation
Related Topics:	Uncertainty, Uncertainty Analysis Uncertainty of Repeated Measurements Furniture Uncertainty Coal Analyzer weight scientific uncertainty standard curve uncertainty Guidelines for the Evaluation of Uncertainty in Measurement of Cigarettes standard curve uncertainty Quantitative PCR Guide Standard Uncertainty Analysis Spectral Uncertainty asme uncertainty analysis Analytical Method Uncertainty Analysis Standard substance uncertainty Standard substance uncertainty Standard substance uncertainty Analytical uncertainty Uncertainty of the curve particle size uncertainty Repeated measurement uncertainty Uncertainty per concentration curve Degree capacity analysis asme uncertainty curve uncertainty Analytical accuracy material uncertainty What is the uncertainty of the standard substance? Coal analysis and detection bottle uncertainty Determination uncertainty of cadmium element Uncertainty of cadmium standard intermediate solution Uncertainties in standard materials standard value uncertainty Uncertainty standard material Liquid uncertainty analysis test quality analysis Calorific value uncertainty Uncertainty assessment Standard Material and Uncertainty Lead Uncertainty mass accuracy Arsenic Uncertainty Uncertainty system Coal Analyzer Analytical Instrument Uncertainty Relative Uncertainty of Standard Materials Cadmium Uncertainty Evaluation standard material, uncertainty Secondary Uncertainty of Standard Material Standard Uncertainty of Standard Material Arsenic Uncertainty mass accuracy Arsenic Uncertainty Uncertainty tool Quality Management in Analytical Testing Accuracy in Analytical Methods Aluminum Uncertainty Uncertainty Analysis Calibration protein uncertainty Evaluation of cadmium uncertainty Lead Uncertainty Definition of measurement uncertainty Aluminum Density Uncertainty Rice Cadmium Uncertainty add uncertainty Uncertainty constant Uncertainty in standard material Standard material uncertainty use Aluminum Uncertainty Uncertainty of decision Confirmation Uncertainty Uncertainty range Measurement and Analysis Relative Uncertainty Analysis sampling uncertainty Secondary standard material uncertainty high temperature uncertainty Infrared Uncertainty Uncertainties for Cadmium in Food Mass Spectrometry Uncertainty asme uncertainty Rice Cadmium Uncertainty Aluminum Uncertainty relative atomic mass uncertainty relative standard uncertainty Inaccurate measurement of standard materials standard material to uncertainty Analysis of quality indicators Uncertainty Evaluation Method GB/T 33303 Bioassay Uncertainty Uncertainty software Coal Quality Measurement How to divide two uncertainties Quantitative semi-quantitative analysis Manganese Uncertainty Uncertainty in meters Measurement uncertainty is 0 Relative Uncertainty Total Uncertainty Significant Figures Tool uncertainty In-sample uncertainty Determination of sample uncertainty Monitoring quality is not Leachable Uncertainty Uncertainty of the aluminum cup Instrument Uncertainty Analysis GBT33303 GB/T 33303-2016 Uncertainty evaluation of molecular weight in gel chromatography Is xrd quantitative analysis accurate? Uncertainty assessment measurement model What is the magnitude of the uncertainty? What are the two types of measurement uncertainty? Measurement Uncertainty Group pt data evaluation measurement uncertainty Uncertainty evaluation of contact current tester Uncertainty assessment of standard thermometers Standard uncertainty of measurement column What are the categories of uncertainty assessment methods? Measurement Uncertainty Assessment Methods and Practice Radio frequency test uncertainty analysis and evaluation method Mass Relative Standard Uncertainty Measurement Uncertainty International Measurement uncertainty can be divided into Expanded uncertainty of analytical methods Specific rotation is not determined into the mass Measurement standard uncertainty component Uncertainty Classification and Assessment Methods Uncertainties are classified according to assessment methods Uncertainty is divided into Uncertainty is classified according to the assessment method as How to determine the impurity limit method Uncertainty of analytical method Uncertainty Assessment Techniques and Methods

《GB/T 33303-2016煤质分析中测量不确定度评定指南》由TC42（全国煤炭标准化技术委员会）归口，TC42SC1（全国煤炭标准化技术委员会煤炭检测分会）执行，主管部门为中国煤炭工业协会。

Introduction

Interpretation of the core content of the standard

GB/T 33303-2016 specifies the complete framework for the evaluation of measurement uncertainty in coal quality analysis, including term definitions, evaluation methods and reporting specifications. The standard applies to the measurement process of key indicators such as ash content and calorific value.

Measurement uncertainty assessment methods

Assessment type	Method characteristics	Typical applications
Type A assessment	Bessel formula/range method statistical analysis	Repeatable measurement data
Type B assessment	Based on prior information such as instrument MPE	Balance weighing, volume calibration

Application case: ash content measurement uncertainty

Taking ash content determination as an example, the standard demonstrates in detail the weighing (analytical balance), calcination and other links, the final expanded uncertainty is U=0.07%(k=2).

Technology evolution and implementation suggestions

This standard combines the general principles of JJF 1059.1 with the characteristics of coal quality analysis for the first time, focusing on:

Special considerations brought about by the heterogeneity of coal samples
Environmental impact correction of high-temperature calcination process
Normative requirements for the use of standard materials

Implementation suggestions:The laboratory should establish a measurement model to identify key influencing quantities and regularly calibrate key equipment such as muffle furnace.

More samples: DL/T 5154-2012 NB/T 47013.2-2015 JC/T 2453-2018

Sample only — not a preview of GB/T 33303-2016

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