Search result: JJG 86-2023 (JJG 86-2011 Older version)
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| JJG 86-2023 | English | 909 |
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Standard Glass Hydrometers
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JJG 86-2023
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| JJG 86-2011 | English | 1359 |
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Verification Regulation of Standard Glass Hydrometers
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JJG 86-2011
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| JJG 86-2001 | English | 799 |
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Verification Regulation of Standard Glass Hydrometers
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JJG 86-2001
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| JJG 86-1986 | English | RFQ |
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Verification Regulation of Standard Glass Hydrometers
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JJG 86-1986
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| Standard ID | JJG 86-2023 (JJG86-2023) | | Description (Translated English) | Standard Glass Hydrometers | | Sector / Industry | Metrology & Measurement Industry Standard | | Word Count Estimation | 41,489 | | Date of Issue | 2023-03-15 | | Date of Implementation | 2023-09-15 |
JJG 86-2023
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 range(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:
......
JJG 86-2011
Verification Regulation of Standard Glass Hydrometers
State verification procedures People's Republic of China
Standard glass hydrometers
Issued on. 2011-09-20
2012-03-20 implementation
The State Administration of Quality Supervision, Inspection and Quarantine released
Glass hydrometers standard test procedures
StandardGlassHy
drometers
Replacing JJG 86-2001
The regulations by the State Administration of Quality Supervision, Inspection and Quarantine approved on September 20, 2011, and from
From March 20, 2012 into effect.
Focal point. the quality and density measurement technology committee
The main drafting units. China Institute of Metrology
Participated in the drafting unit. Heilongjiang Provincial Academy of verification test
China Testing Technology Research Institute
Yuyao Instrument Factory Co., Ltd.
This procedure commissioned by the quality and density measurement technology committee responsible for the interpretation
The main drafters of this procedure.
Gu Yingzi (China Institute of Metrology)
Chen Zhaohui (China Institute of Metrology)
Xu Chang Hong (China Institute of Metrology)
Drafters participate.
Xu Xiuhua (Heilongjiang Provincial Academy of verification test)
Shao Zhixin (China Testing Technology Research Institute)
Ding column a (Yuyao Instrument Factory Co., Ltd.)
table of Contents
1 Scope (1)
2. References (1)
3 terminology and units of measurement (1)
4 Overview (1)
5 metering performance requirements (2)
6 General Requirements (2)
6.1 Appearance (2)
6.2 standard temperature (3)
Labeled 6.3 (3)
7 control of measuring instruments (3)
7.1 test conditions (3)
7.2 test items and test methods (6)
7.3 test results processing (10)
7.4 test cycle (10)
Appendix A 0 ℃ ~ 40 ℃ water density meter (excluding air) (11)
Appendix B 20 ℃ when aqueous ethanol volume fraction and density ρ q conversion table (13)
Appendix C 20 ℃ when the mass fraction of the sugar solution and the density ρ p conversion table (14)
Appendix D is less than the density of liquid water in the capillary constant α (15)
Appendix E is greater than the density of liquid water capillary constant α (17)
Appendix F potassium iodide aqueous mercury capillary constant α (20)
Appendix G sugar solution capillary constant α (21)
Appendix H air density is calculated (22)
Appendix J wet air density table (24)
Appendix K hydrostatic weighing method original recording density test 1 (26)
Appendix L hydrostatic weighing method original recording density test 2 (27)
Appendix M test certificate-page format (28)
Appendix N test results in the notice page format (29)
Glass hydrometers standard test procedures
1 Scope
The order applies to first-class standard density meter and second standard density meter, first-class standard of seawater density meter, first-class standard
Alcohol meter, alcohol meter second-class standard, first-class standard glucose meter and second standard hydrometer and other quality standards fixed glass
Glass hydrometers (hereinafter referred to as hydrometers) initial verification, use and subsequent verification check.
NA less than 650kg/m3 density range Standard Oil densitometer calibration.
2. References
JJF1229-2009 mass density measurement terminology and definitions
JJG 2094-2010 density measuring instruments Verification System
GB/T 17764-2008 densitometer calibration structure and principles
For dated references, only the dated edition applies to this procedure; undated reference documents
Member, the latest edition (including any amendments) applies to this procedure.
3 terminology and units of measurement
The relative density of 3.1 relativedensity
Under specified conditions, than the material density ρ1 and ρ2 of reference material density, represented by d. See equation (1).
d = ρ1/ρ2 (1)
Note. d no units that dimensionless quantity.
In the field of density measurement, reference materials commonly used for liquid and solid water, usually with respect to gas
Its gas pressure and dry air at the same temperature. For example, the standard procedure in water density meter scale is relatively close
Degree units, referring to a specific density of seawater at 17.5 ℃ when the density of pure water at 17.5 ℃, the symbol d17.517.5 to represent.
3.2 hydrostatic weighing method hydrostaticweighing
Based on Archimedes' principle, by weighing immersed in the liquid glass hydrometers suffered in the steady state the size of buoyancy
To determine the volume of immersed portion of the meter and calculate floating point density value method.
4 Overview
Float glass is a meter in the liquid free-floating vertically, by its immersion depth in the liquid to directly measure the fluid
Density, relative density or concentration of the instrument, the structure shown in Fig.
......
Similar standards: JJG 134 JJG 249 JJG 42
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