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JJG 1140-2017: Industrial Analyzers
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Industrial Analyzers
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JJG 1140-2017
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Basic data | Standard ID | JJG 1140-2017 (JJG1140-2017) | | Description (Translated English) | Industrial Analyzers | | Sector / Industry | Metrology & Measurement Industry Standard | | Classification of Chinese Standard | A61 | | Classification of International Standard | 17.020 | | Word Count Estimation | 15,147 | | Date of Issue | 2017-09-26 | | Date of Implementation | 2017-12-26 | | Quoted Standard | JJG 1036-2008; JJF 1376-2012; GB/T 212-2008 | | Regulation (derived from) | General Administration of State Quality Inspection Announcement 2017 No. 78 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine | | Summary | This standard applies to the first verification, subsequent verification and in-service inspection of coal quality analysis industrial analyzers. | JJG 1140-2017: Industrial Analyzers---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
(Industrial analyzer verification procedures)
People's Republic of China National Metrological Verification Procedures
Industrial Analyzer
2017-09-26 Posted
2017-12-26 Implementation
General Administration of Quality Supervision, Inspection and Quarantine released
Industrial Analyzer verification procedures
The focal point. National Physical Chemistry Metering Technology Committee
Drafting unit. Tongliao City, product quality measurement test
Guizhou Provincial Metrology Institute
Measurement and Supervision Institute of Hebei Province
This procedure entrusts the National Physical Chemistry Metrology Technical Committee responsible for the interpretation
The main drafters of this procedure.
Li Honghao (Tongliao City Product Quality Measurement and Testing Institute)
Mao Wen (Guizhou Provincial Institute of Metrology)
Wang Long (Hebei Province Measurement Supervision and Inspection Institute)
Participate in the drafters.
Fang Jing (Hebei Province Metrology Supervision and Inspection Institute)
Wang Xudong (Tongliao City Product Quality Measurement and Testing Institute)
Liu Jianbing (Tongliao City Product Quality Measurement and Testing Institute)
Wu Pengcheng (Guizhou Provincial Institute of Metrology)
table of Contents
Introduction (Ⅱ)
1 Scope (1)
2 References (1)
3 Overview (1)
4 measurement performance requirements (1)
4.1 weighing indication error and repeatability (1)
4.2 temperature control temperature error and stability (1)
4.3 Instrument indication error and repeatability (2)
5 General technical requirements (2)
5.1 Appearance (2)
5.2 Safety Performance (2)
6 measuring instruments control (2)
6.1 test conditions (2)
6.2 test items and test methods (3)
6.3 test results of the treatment (5)
6.4 test cycle (5)
Appendix A test certificate, test results notice page (6)
Appendix B Test Record Format (9)
Introduction
The rules are based on JJF1002-2010 "national metrological verification rules writing rules", JJF1001-2011 "pass
Using measurement terms and definitions "as the basis for the development of norms.
In the development of this procedure, combined with the current industrial analyzer measurement and detection performance, and with reference to the relevant standards
Based on the development.
--- Weighing indication error and repeatability selection using the JJG 1036-2008 "electronic balance" 7.3.5 indicating the value of error
Poor and 7.3.4 repeatability requirements;
--- Temperature temperature control error selection using GB/T 212-2008 "method of industrial analysis of coal" 3.1.1,
4.1.1,5.1.1 Method summary of the requirements; Equivalent stability using the JJF1376-2012 "box resistance furnace school
Quasi-norms "in 5.2 on the temperature stability requirements;
--- Equivalent indication error and repeatability of the instrument using GB/T 212-2008 "method of industrial analysis of coal"
4.4 ash determination of precision and 5.6 volatility determination of precision requirements.
This is the first release of this procedure.
Industrial Analyzer verification procedures
1 Scope
This code applies to coal quality analysis of industrial analyzers for the first time test, follow-up test and use of the inspection.
2 reference documents
The procedures cited in the following documents.
JJG 1036-2008 electronic balance
Box resistance furnace calibration specification
GB/T 212-2008 Methods for industrial analysis of coal
For dated references, only the dated version applies to this edition; any undated reference
The latest version (including all amendments) applies to this procedure.
3 Overview
Industrial analyzer (hereinafter referred to as the instrument) measurement principle of thermogravimetric analysis. Will far infrared heating equipment and weighing
The electronic balance with the combination of specific conditions in the atmosphere, the specified temperature, the specified time to weigh the sample in
Heat the process of quality changes, in order to calculate the sample moisture, ash and volatile industrial analysis indicators.
Instrument by the control system, test system (including high temperature furnace, electronic balance, thermocouple, etc.), data processing system
, Mainly for the analysis of moisture, ash and volatile matter of coal, coke and coal water slurry.
Instrument is divided into one and split two.
4 measurement performance requirements
4.1 weighing indication error and repeatability
Weighing indication error should not exceed ± 1.0mg; Repeatability should not exceed 1.0mg.
4.2 temperature control temperature error and stability
Furnace temperature control error and stability should be consistent with the provisions of Table 1.
Burning furnace operating temperature.
a) Determination of moisture, the furnace temperature (105 ~ 110) ℃;
b) Determination of ash, the furnace temperature (805 ~ 825) ℃;
c) Determination of volatile, the furnace temperature (890 ~ 910) ℃.
Table 1 temperature control temperature error and stability ℃
Temperature measurement point 107 815 900
Temperature error ± 3 ± 10
Stability ± 2 ± 10
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