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JJF 1539-2015: Calibration Specification for Silicate Analyzers
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Calibration Specification for Silicate Analyzers
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JJF 1539-2015
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Basic data | Standard ID | JJF 1539-2015 (JJF1539-2015) | | Description (Translated English) | Calibration Specification for Silicate Analyzers | | Sector / Industry | Metrology & Measurement Industry Standard | | Classification of Chinese Standard | A60 | | Classification of International Standard | 17.180 | | Word Count Estimation | 18,152 | | Date of Issue | 2015-06-15 | | Date of Implementation | 2015-09-15 | | Quoted Standard | JJF 1094; GB/T 6682; GB/T 12149; DL/T 677 | | Regulation (derived from) | AQSIQ Announcement 2015 No.72 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine | | Summary | This Standard applies to silicate analyzer calibration. | JJF 1539-2015: Calibration Specification for Silicate 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.
(Silicate analyzer calibration specification)
People's Republic of China National Metrology Technical Specifications
Silicate analyzer calibration specification
Issued on. 2015-06-15
2015-09-15 implementation
The State Administration of Quality Supervision, Inspection and Quarantine released
Silicate analyzer calibration specification
Focal point. the National Technical Committee on Optical metrology
Main drafting unit. Liaoning Provincial Institute of Metrology
China Testing Technology Research Institute
Participated in the drafting unit. Shenyang Metrology hospital
Xinjiang Institute of Metrology
Dalian City Electronics Co., Ltd.
This specification committee commissioned by the National Optical measurement technology is responsible for interpreting
The main drafters of this specification.
Aiming Ze (Liaoning Provincial Institute of Metrology)
Li Xiaobin (China Testing Technology Research Institute)
Zhang Mei (Liaoning Provincial Institute of Metrology)
Drafters participate.
Xiao Zhe (Liaoning Provincial Institute of Metrology)
Zhang Gong (Shenyang Metrology Institute)
Bai Xu (Xinjiang Institute of Measurement and Testing)
Golden People (Dalian City Electronics Co., Ltd.)
table of Contents
Introduction (Ⅱ)
1 Scope (1)
2. References (1)
3 Overview (1)
4 Metrological characteristics (2)
4.1 Instrument indication error (2)
4.2 Repeatability measuring instrument (2)
4.3 Instrument stability (2)
4.4 Instrument 24h run stability (2)
4.5 Instrument phosphate anti-interference performance (2)
Calibration Condition 5 (2)
5.1 Calibration Environment (2)
5.2 standard devices and other equipment (2)
6 calibration items and calibration methods (3)
6.1 Calibration before the test (3)
6.2 Instrument indication error (3)
6.3 instrument measurement repeatability (3)
6.4 Instrument stability (4)
6.5 Instrument 24h run stability (4)
6.6 Instrument phosphate anti-interference performance (4)
7 Calibration Results The expression (4)
8 Recalibration interval (5)
Appendix A calibration reagent and solution preparation method (6)
Appendix B recommended calibration record format (7)
Appendix C Recommended calibration certificate-page format (9)
Appendix D Evaluation of Uncertainty in Measurement Example (10)
Introduction
This specification based JJF 1071-2010 "National Calibration Specifications writing rules", JJF 1001 "universal metering
Terms and definitions ", JJF 1059.1-2012" Evaluation and Expression of Uncertainty in Measurement ", and referring to (part)
GB/T 12149-2007 "industrial circulating cooling water and boiler water Determination of Silicon", DL/T 677-2009 "hair
Power line chemical instrumentation test procedures "requirement developed.
This specification calibrated main items are.
--- Instrument indication error;
--- Instrument measurement repeatability;
--- Instrument stability;
--- Instrument 24h operational stability;
--- Instrument phosphate anti-interference performance.
The specification for the first time to develop.
Silicate analyzer calibration specification
1 Scope
This instruction applies to silicate analyzer calibration.
2. References
This specification references the following documents.
JJF 1094 measuring instrument characteristics evaluation
Laboratory use specifications and test methods GB/T 6682 Analysis
GB/T 12149 Determination of industrial circulating cooling water and boiler water in silicon
DL/T 677 meter inspection of chemical plants online
For dated references, only the dated edition applies to this specification; undated reference documents
Member, the latest edition (including any amendments) applies to this specification.
3 Overview
Silicate analyzer (hereinafter referred to as the instrument) is used to measure the water content of silicate analysis instrument that measures primary
Water soluble silicon processing under certain conditions, the reagent reacts and color, according to Lambert - Beer law, when
Bundle of parallel monochromatic light through the light-absorbing substance containing the colored solution, part of the light is absorbed when the absorbing layer thickness is not
Varying proportional to the concentration and the absorbance of light-absorbing substance by photoelectric detection device converts the optical signal into an electrical signal by
After the microprocessor, the display silicate content. Lambert - Beer law mathematical expression is.
A = -lg
I0 = -
lgT = klc
Where.
A --- absorbance substances;
I --- transmitted monochromatic light intensity;
Monochromatic light intensity I0 --- incident;
T --- substance transmittance;
Extinction coefficient k --- substances;
l --- analyte optical path substances;
c --- concentration of the substance.
Instruments mainly by the light source system, the spectrometer, the sample chamber, the detection system, etc., see Schematic
figure 1.
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