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JJG 1045-2017

Chinese Standard: 'JJG 1045-2017'
Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusRelated Standard
JJG 1045-2017English319 Add to Cart Days<=4 Mud Density Meters Valid JJG 1045-2017
JJG 1045-2017Chinese20 Add to Cart <=1-day [PDF from Chinese Authority, or Standard Committee, or Publishing House]  


Standard ID JJG 1045-2017 (JJG1045-2017)
Description (Translated English) Mud Density Meters
Sector / Industry Metrology & Measurement Industry Standard
Word Count Estimation 18,157
Date of Issue 2017-11-20
Date of Implementation 2018-05-20
Older Standard (superseded by this standard) JJG 1045-2008
Drafting Organization Heilongjiang Province Metrology Verification Test Institute
Administrative Organization National Quality Density Measurement Technical Committee
Regulation (derived from) AQSIQ Notice 2017 No. 103
Issuing agency(ies) State Administration of Quality Supervision, Inspection and Quarantine

JJG 1045-2017
(Mud density meter verification procedures)
National Metrology Verification Regulations of the People's Republic
Mud density meter
Released on.2017-11-20
2018-05-20 implementation
The General Administration of Quality Supervision, Inspection and Quarantine issued
Mud density meter verification procedure
Replace JJG 1045-2008
Focal Point. National Quality Density Measurement Technical Committee
Main drafting unit. Heilongjiang Province Metrology Test and Test Institute
Participated in the drafting unit. China Institute of Metrology
Hubei Institute of Metrology and Testing Technology
This regulation entrusts the National Quality Density Measurement Technical Committee to explain
The main drafters of this procedure.
Xu Xiuhua (Heilongjiang Metrological Testing and Testing Institute)
Participate in the drafters.
Xu Changhong (China Institute of Metrology)
Ding Haiming (Heilongjiang Metrological Testing and Testing Institute)
Li Lei (Heilongjiang Metrological Testing and Testing Institute)
Ma Ming (Hubei Institute of Metrology and Testing Technology)
Zhao Xin (Heilongjiang Metrological Testing and Testing Institute)
table of Contents
Introduction (II)
1 range (1)
2 References (1)
3 terms and units of measurement (1)
3.1 Alternatives (1)
3.2 Special weights (1)
3.3 Discrimination (1)
4 Overview (1)
5 Metrological performance requirements (2)
5.1 Discrimination (2)
5.2 indication error (3)
6 General technical requirements (3)
6.1 Mechanical mud density meter (3)
6.2 Electronic mud density meter (3)
7 Measuring instrument control (3)
7.1 Verification conditions (3)
7.2 Verification items and verification methods (4)
7.3 Processing of verification results (7)
7.4 Verification cycle (7)
Appendix A Mechanical Mud Densitometer Verification Record Format (8)
Appendix B Electronic mud density meter verification record format (9)
Appendix C Mud Densitometer Verification Certificate/Verification Result Notice (inside page) format (10)
Appendix D Atmospheric Pressure Free Air (0~40) °C Pure Water Density Table (12)
This procedure is prepared in accordance with JJF1002-2010 "Rules for the preparation of national metrological verification procedures", and
Compared with JJG 1045-2008, in addition to editorial changes, the main technical changes are as follows.
--- Added introduction;
--- Added reference files (see 2);
--- The choice of "special weight" has been added to the terms and units of measurement (see 3.2);
--- "Discrimination [threshold]" changed to "discrimination" (see 3.3);
--- The unit of measurement is changed from kg/m3 as the main unit to g/cm3 as the main unit (see 3.4);
---Measurement of measuring instruments including initial inspection, subsequent verification and use of "inspection" into "inspection" (see 7);
--- Added additional equipment such as level, pure water, absorbent cotton, tweezers, hair dryer (see Table 2);
--- The ambient temperature in the environmental conditions is changed from (5~40) °C to (20±5) °C, and the ambient humidity is not greater than
85% is changed to no more than 75% (see 7.1.2);
--- Zero adjustment adds a zeroing method for mud density meters that do not contain 1.000g/cm3 in the measurement range (see;
--- In the processing of the verification results - indicate that the "cause" of the failure is changed to "project" (see 7.3);
---Atmospheric pressure (0-40) °C air-free pure water density meter changed from t68 to.1990 international temperature scale t90 (see Appendix D).
The previous versions of this procedure are released.
---JJG 1045-2008.
Mud density meter verification procedure
1 Scope
This procedure applies to the first verification, subsequent verification and in-use inspection of mechanical and electronic mud density meters. its
His similarity to the density meter can be calibrated with reference to this procedure.
2 reference files
This procedure refers to the following documents.
JJF1229-2009 Terms and definitions of mass density measurement
For dated references, only the dated version applies to this Code; any undated quotation
The latest version (including all amendments) applies to this procedure.
3 terms and units of measure
3.1 replacement refil
Granular materials with a bulk density of more than 5.5 g/cm3, such as copper, stainless steel, lead, etc. (4-10).
3.2 special weight specialweight
A metal object having a diameter of less than 5 cm and a shape symmetry or a solid substance having a density close to that of a metal.
3.3 discriminating force discrimination
The mass of the largest weight that causes the mechanical mud densitometer to produce an undetected response change.
4 Overview
A mud density meter is an instrument used to measure mud density. The volume of the sample cup is known, and the mud is measured by the weighing method.
The mass of the slurry is measured to determine the density of the slurry. Mud density meters are divided into mechanical and electronic types. Mechanical mud
The gauge is mainly composed of a support and a lever with a scale. Place the sample cup at one end of the lever and the crucible at the other end.
Fill the sample cup with the sample to be tested, move the crucible to balance the lever, and the scale corresponding to the crucible indicates the sample to be tested.
density. Mechanical mud density meter is divided into normal pressure mechanical mud density meter according to the internal pressure of the sample cup.
(See Figure 1) and a pressurized mechanical mud density meter (see Figure 2). Electronic mud density meter through force sensor measurement
The quality of the product, the digital display converts the mass electrical signal into a sample density and displays. Electronic mud density meter from sample
The cup, force sensor and digital display (see Figure 3).
The mud density meter is suitable for the measurement of mud density in road and bridge construction and the density measurement of drilling fluid. Pressurize
Mechanical mud densitometers are used to measure samples containing air or natural gas.
Related standard: JJF 1780-2019    JJF 1781-2019
Related PDF sample: JJG 1037-2008    JJG 1036-2008