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JJG 1190-2022 English PDF

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US$419.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email.
JJG 1190-2022: Ultrasonic Gas Meters
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJG 1190-2022	419	Add to Cart	4 days	Ultrasonic Gas Meters	Valid

Similar standards

GB/T 3222.2 GB/T 3222.1 JJG 188 JJG 1183 JJG 1182 JJF 1190

Basic data

Standard ID: JJG 1190-2022 (JJG1190-2022)
Description (Translated English): Ultrasonic Gas Meters
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A59
Word Count Estimation: 20,299
Date of Issue: 2022-12-27
Date of Implementation: 2023-06-27
Issuing agency(ies): State Administration for Market Regulation

JJG 1190-2022: Ultrasonic Gas Meters

---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 Ultrasonic gas meter Ultrasonic Gas Meters 2023-06-27 Implementation Released by the State Administration for Market Regulation Verification Regulations for Ultrasonic Gas Meter Ultrasonic Gas Meters Responsible Unit. National Flow Measurement Technical Committee Main drafting unit. Beijing Institute of Metrology and Testing Sciences Chongqing Institute of Metrology and Quality Inspection Zhejiang Institute of Metrology Participating in the drafting unit. Zhejiang Weixing Intelligent Instrument Co., Ltd. Liaoning Sky Technology Co., Ltd. Chongqing Qianwei Watch Industry Co., Ltd. Shanghai Zhenlan Instrument Technology Co., Ltd. This Regulation entrusts the National Flow Measurement Technical Committee to be responsible for interpretation The main drafters of this regulation. Yang Youtao (Beijing Institute of Metrology and Testing Sciences) Liao Xin (Chongqing Institute of Metrology and Quality Inspection) Jin Lan (Zhejiang Institute of Metrology) Participating drafters. Fang Jiong (Zhejiang Weixing Intelligent Instrument Co., Ltd.) Shi Jianjun (Liaoning Sky Technology Co., Ltd.) Yin Daiqiang (Chongqing Qianwei Watch Co., Ltd.) Ren Haijun (Shanghai Zhenlan Instrument Technology Co., Ltd.)

Introduction (Ⅱ) 1 Scope(1) 2 References(1) 3 Terms and units of measurement(1) 3.1 Terminology(1) 3.2 Units of measurement(2) 4 Overview(2) 4.1 Principle (2) 4.2 Structure (3) 4.3 Use(4) 5 Metrological performance requirements (4) 6 General technical requirements (4) 6.1 Nameplates and markings (4) 6.2 Appearance(5) 6.3 Seals(5) 6.4 Display(5) 6.5 Flow range(6) 6.6 Zero flow reading(6) 6.7 Anti-reverse function(6) 6.8 Additional components(6) 6.9 Sealing (7) 6.10 Pressure loss(7) 7 Measuring Instrument Control(7) 7.1 Test conditions (7) 7.2 Verification items (8) 7.3 Verification method (8) 7.4 Processing of verification results (11) 7.5 Verification cycle (11) Appendix A Inspection Certificate/Inner Page Information and Format of Inspection Result Notification (Reference) (12)

Introduction

JJF1001 "General Metrology Terms and Definitions", JJF1002-2010 "Rules for Writing National Metrology Verification Regulations" Together with JJF1059.1-2012 "Assessment and Expression of Measurement Uncertainty", it forms the basis to support the formulation of this specification sex file. This regulation is based on GB/T 32201-2015 "Gas Flow Meters", the International Organization for Legal Metrology (OIML) Recommendation R137-1 2021 "Ultrasonic Gas Meter", JJG 577-2012 "Membrane Gas Meter", JJG 1030-2007 "Ultrasonic Flow Meter" and JB/T 12958-2016 "Household Ultrasonic Gas Meters", and comprehensively carry out the current situation of ultrasonic gas meters in my country formulate. This regulation is published for the first time. Verification Regulations for Ultrasonic Gas Meter

1 Scope

This regulation applies to the maximum working pressure not exceeding 50kPa, the maximum flow rate not exceeding 160m3/h, by time difference method First verification, follow-up verification and in-use inspection of ultrasonic gas meters of measurement principle.

2 References

This procedure references the following documents. JJG 577-2012 Diaphragm gas meter JJG 1030-2007 Ultrasonic flowmeter JJF1001 General Metrology Terms and Definitions JJF1004 Flow Measurement Terms and Definitions GB/T 32201-2015 gas flowmeter GB/T 39841-2021 Ultrasonic gas meters OIMLR137-1 JB/T 12958-2016 Household Ultrasonic Gas Meter For dated references, only the dated version applies to this Regulation; for undated references, Its latest version (including all amendments) applies to this regulation.

3 Terminology and units of measurement

The following terms and definitions defined in JJF1001 and JJF1004 apply to this regulation. 3.1 Terminology 3.1.1 maximum flow rate qmax The gas meter meets the upper limit flow rate required by the metering performance. 3.1.2 minimum flow rate qmin The gas meter meets the lower limit flow rate required for metering performance. 3.1.3 Boundary flow transitionalflowrate Between the maximum flow and the minimum flow, the flow that divides the flow range of the gas meter into "high zone" and "low zone" point (eg qt is 0.1qmax). Note. The high zone and the low zone each have a corresponding maximum allowable error. 3.1.4 flow range flowraterange The range defined by the maximum flow rate and the minimum flow rate that meets the measurement performance requirements of the gas meter. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of JJG 1190-2022_English be delivered?

Answer: Upon your order, we will start to translate JJG 1190-2022_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of JJG 1190-2022_English with my colleagues?

Answer: Yes. The purchased PDF of JJG 1190-2022_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 Sales@ChineseStandard.net. 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.