HOME Cart(0) Quotation About-Us Policy PDFs Standard-List
www.ChineseStandard.net Database: 189760 (18 Oct 2025)

JJG 59-2022 English PDF

US$709.00 · In stock
Delivery: <= 5 days. True-PDF full-copy in English will be manually translated and delivered via email.
JJG 59-2022: Liquid-medium Piston Gauges
Status: Valid

JJG 59: Evolution and historical versions

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
JJG 59-2022	English	709	Add to Cart	5 days [Need to translate]	Liquid-medium Piston Gauges	Valid	JJG 59-2022
JJG 59-2007	English	999	Add to Cart	5 days [Need to translate]	Verification Regulation of Piston Gauge	Obsolete	JJG 59-2007
JJG 59-1990	English	519	Add to Cart	4 days [Need to translate]	Standard Piston Gauge (Grade II, III)	Obsolete	JJG 59-1990
JJG 59-1978	English	RFQ	ASK	3 days [Need to translate]	(Chinese Industry Standard)	Obsolete	JJG 59-1978

Standard similar to JJG 59-2022

JJG 42 JJF 059 JJF 059

Basic data

Standard ID	JJG 59-2022 (JJG59-2022)
Description (Translated English)	Liquid-medium Piston Gauges
Sector / Industry	Metrology & Measurement Industry Standard
Word Count Estimation	32,352
Date of Issue	2022-09-26
Date of Implementation	2023-03-26
Issuing agency(ies)	State Administration for Market Regulation

JJG 59-2022: Liquid-medium Piston Gauges

---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.
Liquid-medium Piston Gauges National Metrology Verification Regulations of the People's Republic of China liquid piston gauge Released on 2022-09-26 2023-03-26 Implementation Released by the State Administration for Market Regulation Verification Regulations for Liquid Piston Pressure Gauge Replace JJG 59-2007 Responsible unit. National Pressure Measurement Technical Committee Main drafting unit. China Institute of Metrology Shanghai Institute of Metrology and Testing Technology Shanghai Minyu Industrial Co., Ltd. Jiangsu Institute of Metrology Participating in the drafting unit. Beijing Pumao Technology Development Co., Ltd. Shenyang Furunde Instrument Manufacturing Co., Ltd. This regulation entrusts the National Pressure Measurement Technical Committee to be responsible for interpretation The main drafters of this regulation. Yue Jin (National Institute of Metrology) Tu Limeng (Shanghai Institute of Metrology and Testing Technology) Yuanchao Yang (National Institute of Metrology, China) Hu Anlun (Shanghai Minyu Industrial Co., Ltd.) Zhang Qiang (Jiangsu Institute of Metrology) Participating drafters. Zhang Pengcheng (Beijing Pumao Technology Development Co., Ltd.) Ma Guoxin (Shenyang Furunde Instrument Manufacturing Co., Ltd.)

Introduction (Ⅱ) 1 Scope(1) 2 References(1) 3 Terms and units of measurement(1) 4 Overview(1) 5 Metrological performance requirements (2) 5.1 Accuracy classes(2) 5.2 Piston effective area(2) 5.3 The mass of the piston and its connecting parts and the mass of special weights (2) 5.4 Piston verticality(3) 5.5 Piston rotation duration(3) 5.6 Piston lowering speed(3) 5.7 Discrimination threshold(4) 5.8 Sealing (4) 5.9 Periodic variation of piston effective area (5) 6 General technical requirements (5) 6.1 Appearance(5) 6.2 Piston system(5) 6.3 Load pan and special weights (5) 7 Measuring Instrument Control(6) 7.1 Verification items (6) 7.2 Test conditions (6) 7.3 Verification method (8) 7.4 Processing of verification results (13) 7.5 Verification cycle (13) Appendix A Calculation of piston effective area A0 and pressure deformation coefficient λ by linear regression method (14) Appendix B Direct Balance Method for Piston Effective Area Verification (16) Appendix C Piston Pressure Gauge Verification Record Format (19) Appendix D Inspection Certificate/Inner Page Information and Format of Inspection Result Notification (21) Appendix E Gravitational Acceleration (24) Appendix F Linear Expansion Coefficients of Common Piston and Piston Cylinder Materials (26)

Introduction

JJF1002 "Rules for Writing National Metrology Verification Regulations", JJF1001 "General Metrology Terms and Definitions", JJF1008 "Terms and Definitions of Pressure Measurement" and JJF1059.1 "Assessment and Expression of Measurement Uncertainty" It constitutes the basic series of specifications supporting the revision of this regulation, and GB/T 30432-2013 "Liquid Piston Pressure Gauge" and OIMLR110 "Pressure Balance" (PressureBalance). Compared with JJG 59-2007 "Piston Pressure Gauge", the main technical changes except editorial modifications are as follows. --- Add terminology to give a more detailed explanation of the effective area of the piston. --- Re-specify the measurement range and accuracy level, correspondingly, the maximum allowable error of the high-pressure piston pressure gauge Segmentation provisions. --- The verification result of the effective area is limited by the experimental standard deviation and the linear regression standard deviation of the effective area of the piston. --- Put forward verification requirements for the pressure deformation coefficient. --- The description of the quality part of the special weight has been improved; the special weight of the 0.01-level piston pressure gauge has been adjusted Quality requirements; requirements for small weights for balance are specified. ---It is clearly stipulated that when testing the duration of piston rotation, the weight consistent with the actual use of the pressure gauge should be used code, special weights cannot be used. --- The requirements for the descending speed of the piston do not distinguish between "new manufacture" and "in use", and make unified regulations and carry out corresponding Adjustment. ---Change the identification threshold test to be carried out at the initial balance point, and adjust the allowable value of the identification threshold accordingly. --- The initial balance method is preferred for the verification of the effective area of the piston, and the calculation formula of the initial balance method is given. The initial balance point is determined; the direct balance method is used as an appendix for those who need it. ---The periodical change of the effective area of the piston requires that the effective area A0 of the zero-pressure piston of the tested pressure gauge and the measurement range The limited piston effective area Ap,max is checked, which relaxes the requirement for periodic changes. --- The requirements for the actual measurement of the acceleration of gravity are specified in the appendix. The previous releases of this regulation are as follows. ---JJG 59-2007 Piston Pressure Gauge Verification Regulations; ---JJG 59-1990 Second and third standard piston pressure gauge verification regulations; ---JJG 59-1978 Second and third standard piston pressure gauge verification regulations; ---JJG 129-1990 first-class standard piston pressure gauge verification regulations; ---JJG 129-1976 first-class standard piston pressure gauge verification regulations; ---JJG 727-1991 Trial Verification Regulations for Working Standard Piston Pressure Gauge. Verification Regulations for Liquid Piston Pressure Gauge

1 Scope

This regulation applies to the upper limit of the measurement range of 0.6MPa to 500MPa (gauge pressure), the working medium is sebacic acid di (2-Ethylhexyl) ester or mixed oil of transformer oil and aviation kerosene, liquid with constant pressure deformation coefficient of piston system The initial verification, follow-up verification and in-use inspection of body piston pressure gauges (hereinafter referred to as pressure gauges).

2 References

This procedure references the following documents. JJG 99-2006 weight GB/T 30432-2013 Liquid Piston Pressure Gauge OIMLR110 Pressure Balance 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 When the piston pressure gauge works normally, the difference between the vertical downward force on the piston and the pressure at the bottom of the piston is Compare. Determine the magnitude of the pressure magnitude when it is reproduced or traced. Note. In this regulation and in the field of pressure measurement, pressure refers to the pressure in physics. At the reference temperature (20°C), the effective area of the piston under the measured pressure p is denoted by Ap. At the reference temperature (20°C), the limit of the effective area of the piston under zero pressure is called the effective area of the zero-pressure piston. It is represented by A0. The effective area Ap of the piston varies linearly with the measured pressure p, that is, the phase of Ap corresponding to the unit pressure change For the amount of change, it is expressed by λ, and its unit is usually MPa-1 or Pa-1. 3.2 Units of measurement The legal measurement unit used by the pressure gauge is Pa (Pascal, referred to as. Pa), or its decimal multiple unit. kPa, MPa, etc.

4 Overview

The pressure gauge is based on the principle of hydrostatic force balance (the piston and its connecting parts and special weights are loaded on the piston to effectively The gravity on the area is balanced with the force generated by the measuring pressure acting on the lower end of the piston) for pressure measurement and value transmission Measuring instruments generally consist of a piston system, special weights, and a pressure calibrator. The lower limit and upper limit of the measuring range of the pressure gauge are usually indicated by the manufacturer, and the upper limit of the measuring range is generally 0.6MPa,

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of JJG 59-2022_English be delivered?

Answer: Upon your order, we will start to translate JJG 59-2022_English as soon as possible, and keep you informed of the progress. The lead time is typically 3 ~ 5 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of JJG 59-2022_English with my colleagues?

Answer: Yes. The purchased PDF of JJG 59-2022_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to [email protected]. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.

Question 5: Should I purchase the latest version JJG 59-2022?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version JJG 59-2022 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.