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JJG 86-2023 English PDF

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JJG 86-2023: Standard Glass Hydrometers
Status: Valid

JJG 86: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
JJG 86-2023English909 Add to Cart 6 days [Need to translate] Standard Glass Hydrometers Valid JJG 86-2023
JJG 86-2011English1359 Add to Cart 6 days [Need to translate] Verification Regulation of Standard Glass Hydrometers Obsolete JJG 86-2011
JJG 86-2001English799 Add to Cart 5 days [Need to translate] Verification Regulation of Standard Glass Hydrometers Obsolete JJG 86-2001
JJG 86-1986EnglishRFQ ASK 3 days [Need to translate] Verification Regulation of Standard Glass Hydrometers Obsolete JJG 86-1986

Standard similar to JJG 86-2023

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Basic data

Standard ID JJG 86-2023 (JJG86-2023)
Description (Translated English) Standard Glass Hydrometers
Sector / Industry Metrology & Measurement Industry Standard
Word Count Estimation 41,476
Date of Issue 2023-03-15
Date of Implementation 2023-09-15
Issuing agency(ies) State Administration for Market Regulation

JJG 86-2023: Standard Glass Hydrometers

---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.
National Metrology Verification Regulations of the People's Republic of China JJG 86-2023 Standard Glass Float Gauge Released on 2023-03-15 2023-09-15 Implementation Released by the State Administration for Market Regulation Standard Glass Float Meter Verification Regulations Replace JJG 86-2011 Responsible unit: National Quality and Density Measurement Technical Committee Main drafting unit: China Institute of Metrology Participating in the drafting unit: Qingdao Institute of Metrology Technology Suzhou Institute of Metrology and Testing Heilongjiang Provincial Institute of Metrology and Testing Hengshui Yaohua Instrument Factory This regulation entrusts the National Quality and Density Measurement Technical Committee to be responsible for interpretation The main drafters of this regulation: Liu Xiang (National Institute of Metrology) Participating drafters: Xu Changhong (National Institute of Metrology) Wei Kai (Qingdao Institute of Metrology) Zhang Chengchun (Suzhou Metrology and Testing Institute) Xu Xiuhua (Heilongjiang Provincial Institute of Metrology and Testing) Xu Jia (Hengshui Yaohua Instrument Factory)

Table of contents

Introduction (Ⅱ) 1 Scope(1) 2 References(1) 3 Terms and units of measurement(1) 4 Overview(1) 5 Metrological performance requirements (2) 6 General technical requirements (2) 6:1 Appearance(2) 6:2 Standard temperature(3) 7 Measuring Instrument Control(3) 7:1 Test conditions (3) 7:2 Verification items and verification methods (6) 7:3 Test result processing (10) 7:4 Verification period (10) Appendix A (0~40)℃ pure water density table (excluding air) (11) Appendix B Alcohol Solution Volume Fraction q and Density ρ Conversion Table at 20°C (13) Appendix C Conversion table of sugar solution mass fraction p and density ρ at 20°C (14) Appendix D Capillary Constant α of Liquids Denser Than Water (15) Appendix E Surface Tension of Liquids Denser Than Water γ (17) Appendix F Capillary Constant α of Liquids Denser Than Water (19) Appendix G Surface Tension of Liquids Denser Than Water γ (22) Appendix H Potassium Iodide, Mercury Iodide Aqueous Capillary Constant α and Surface Tension γ (25) Appendix J Capillary Constant α of Sugar Solution (26) Appendix K Surface Tension of Sugar Solutions γ (27) Appendix L Air Density Calculation Formula (28) Appendix M Humid Air Density Table (29) Appendix N Original Recording Format of Standard Glass Buoyometer Stem Diameter (31) Appendix P Original Record Format of Density Verification by Static Weighing Method (32) Appendix Q Original Record Format of Density Verification by Direct Comparison Method (33) Appendix R Format of the inner page of the verification certificate (34) Appendix S Format of the inner page of the test result notification (35)

Introduction

JJF1002-2010 "Rules for Compilation of National Metrology Verification Regulations", JJF1229-2009 "Mass Density Measurement Name" Terms and Definitions", ISO 649-2:1981 "General Density Meter for Laboratory Glassware - Part 2: Tests "Methods and Use" together constitute the basic series of specifications supporting the formulation of this verification regulation: This regulation combines the industry status and actual needs of my country's standard glass measuring instrument measurement, to JJG 86-2011 "Standard Standard Glass Buoymeter" has been revised: Compared with JJG 86-2011, except for editorial modifications, the main technical The changes are as follows: ---Increase the solid density sub-standard as a measurement standard; --- In the main supporting equipment and instruments section, the components used in the direct comparison method and hydrostatic weighing method are listed in detail measuring instrument; --- The verification method and data processing section increased the operation steps and calculation formula of the hydrostatic weighing method; --- Added Appendix E "Surface Tension γ of Liquids with Density Less Than Water"; ---Added Appendix G "Surface Tension γ of Liquids Denser Than Water"; --- Modified Appendix H, adding potassium iodide and mercury iodide aqueous solution surface tension; ---Added Appendix K "Surface Tension of Sugar Solution γ"; ---Added Appendix N "Original Record Format of Standard Glass Buoymeter Stem Diameter"; ---Modified Appendix P "Original Record Format of Density Verification by Static Weighing Method"; --- Added Appendix Q "Original Record Format of Density Verification by Direct Comparison Method"; The previous releases of this regulation are as follows: ---JJG 86-2011; ---JJG 86-2001: Standard Glass Float Meter Verification Regulations

1 Scope

This regulation is applicable to the first- and second-class standard density meters, the first-class standard seawater density meters, the first- and second-class standard alcohol meters, First-class standard sugar meter, second-class standard petroleum density meter and other quality fixed standard glass float meters for the first inspection and follow-up inspection Set and check in use:

2 References

This procedure references the following documents: JJG 2094 Density Measuring Instrument Verification System Table JJF1229 Terms and Definitions of Mass Density Measurement GB/T 17764 Structure and Calibration Principles of Density Meter ISO 649-2 Density meter for general purpose laboratory glassware - Part 2: Test method and use (Labora- use) For dated references, only the dated version applies to this regulation; for undated references document, its latest version (including all amendments) applies to this regulation:

3 Terminology and units of measurement

3:1 Terminology 3:1:1 Hydrostatic weighing method hydrostaticweighing Based on Archimedes' principle, by weighing the buoyancy of the standard glass float meter immersed in the liquid in a steady state It is a method to determine the volume of the submerged part and calculate the density value of the point of the standard glass float meter: 3:2 Units of measurement The unit of density is kg/m3 or g/cm3: The unit of the volume fraction of the alcohol solution is % (at 20°C, see the conversion table of the volume fraction q of the alcohol solution and the density ρ Appendix B): The unit of sugar solution mass fraction is % (see Appendix C for conversion table of sugar solution mass fraction p and density ρ at 20°C):

4 Overview

The standard glass buoy gauge is a type that can float vertically and freely in the liquid, and can be directly measured by the depth it is immersed in the liquid: An instrument for measuring liquid density, relative density or solution concentration, its structure is shown in Figure 1:

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