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JJG 2059-2014 English PDF

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JJG 2059-2014: Verification Scheme of Measuring Instruments for Electrolytic Conductivity
Status: Valid

JJG 2059: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
JJG 2059-2014English209 Add to Cart 3 days [Need to translate] Verification Scheme of Measuring Instruments for Electrolytic Conductivity Valid JJG 2059-2014
JJG 2059-1990English199 Add to Cart 2 days [Need to translate] Verification Scheme of the Conductometric Measuring Instruments Obsolete JJG 2059-1990

PDF similar to JJG 2059-2014


Standard similar to JJG 2059-2014

GB/T 43191   GB/T 15284   JJF 2059   JJF 1497   

Basic data

Standard ID JJG 2059-2014 (JJG2059-2014)
Description (Translated English) Verification Scheme of Measuring Instruments for Electrolytic Conductivity
Sector / Industry Metrology & Measurement Industry Standard
Classification of Chinese Standard N21
Word Count Estimation 9,963
Date of Issue 8/25/2014
Date of Implementation 2/25/2015
Older Standard (superseded by this standard) JJG 2059-1990
Regulation (derived from) People's Republic of China The State Administration of Quality Supervision, Inspection and Quarantine Notice 2014 (No. 95); AQSIQ Notice 2014 No. 95
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine
Summary This Standard applies to the money transfer electrolyte solution conductivity measuring instruments, the provisions of the conductivity value measured by the reference standard metered accurately and reliably transmitted to the measuring instruments work

JJG 2059-2014: Verification Scheme of Measuring Instruments for Electrolytic Conductivity

---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.
Verification Scheme of Measuring Instruments for Electrolytic Conductivity People's Republic of China National Metrological Verification System tables Conductivity measuring instruments Issued on. 2014-08-25 2015-02-25 implementation The State Administration of Quality Supervision, Inspection and Quarantine released Conductivity measuring instruments Verification System Replacing JJG 2059-1990 Focal point. the National Technical Committee stoichiometric physical Drafting units. China Institute of Metrology The Verification System commissioned the National Technical Committee of the stoichiometric physics responsible for the interpretation The drafters of the table. Song Xiaoping (China Institute of Metrology) Wang (China Institute of Metrology) Houmei Ying (China Institute of Metrology)

table of Contents

Introduction (Ⅱ) 1 Scope (1) 2 baseline measurement (1) 3 measurement standards (1) 3.1 Conductivity national standard substance (1) 3.2 Conductivity national secondary reference material (1) 3.3 standard AC resistance (1) 4 working measuring instruments (2) 5 Conductivity Measuring Instruments System Tables Diagram (3)

Introduction

The Verification System based JJF1104-2003 "National Metrological Verification System write rules" to prepare for the generations For existing JJG 2059-1990 "conductivity measuring instruments verification system." Compared with the previous version of the Verification System Electrolyte conductivity baseline measurement regulations, measurement standards and measuring instruments work measurement range, the level of uncertainty And uncertainty evaluation method has been changed to reflect the conductivity of the electrolyte datum measurement standard Development status quo. Conductivity measuring instruments Verification System

1 Scope

The verification system applicable to money transfer electrolyte solution conductivity measuring instruments, by the provisions of the conductivity value After the baseline measurement is accurate and reliable measurement standards transmitted to the measuring instruments work methods and procedures described Conductivity Meter Measurement ranges and metrological characteristics baseline, measurement standards and measuring instruments. In carrying out the calibration, but also as the amount of The value traceable basis. In this assay system tables, specifically refers to the conductivity electrolyte solution conductivity.

2 baseline measurement

Conductivity measurement reference for reproduction and preservation conductivity units, the highest conductivity values based on national unity, Traceable to measuring the quality of reference, the reference temperature measurement, time measurement reference voltage and resistance measured at the baseline measurement Benchmark. Conductivity metering device consists of a reference conductivity cell, AC impedance measurement equipment, temperature measuring devices and equipment thermostats composition. Conductivity measurement reference measurement range. κ = 5μS/cm ~ 20S/m. Measurement Uncertainty conductivity measurement reference. Urel = 0.05% ~ 0.07% (k = 2). Conductivity measurement by directly measuring the reference material to a standard value, perform money transfer.

3 measurement standard

Conductivity measurement standards including standard AC resistance and conductivity national standard. Country is divided into national standard A national standard reference materials and substances. 3.1 Conductivity a national standard Standard Substance conductivity value at the national level by the conductivity measurement benchmarks. Value range Conductivity national standard material. κ = 20μS/cm ~ 12S/m. Conductivity measure primary standard material uncertainty. Urel = 0.07% ~ 0.2% (k = 2). Conductivity national standard by a comparison of the national secondary reference material value, can also be straight Then transfer the measurement value to the work of measuring instruments. 3.2 Conductivity national secondary reference material Value range Conductivity national secondary reference material. κ = 80μS/cm ~ 12S/m. Conductivity Measurement Uncertainty in the national secondary standard substance. Urel = 0.25% ~ 0.6% (k = 2). Conductivity national secondary standard material transfer value to the work of measuring instruments by direct measurement. 3.3 standard AC resistance AC resistance standard analog solution conductivity, electrical conductivity measurement for verification work implement electronic unit. Value range of standard AC resistance. R = 10Ω ~ 20MΩ. Measurement Uncertainty in standard AC resistance. Urel≤0.1% (k = 2).

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