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JJG 1191-2022 English PDF

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JJG 1191-2022: Aqueous Urea Solution Dispensers
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Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
JJG 1191-2022	English	499	Add to Cart	4 days [Need to translate]	Aqueous Urea Solution Dispensers	Valid	JJG 1191-2022

PDF similar to JJG 1191-2022

Standard similar to JJG 1191-2022

GB/T 36126 JJG 1107 GB/T 1885 JJF 1191 JJF 1194 JJF 1186

Basic data

Standard ID	JJG 1191-2022 (JJG1191-2022)
Description (Translated English)	Aqueous Urea Solution Dispensers
Sector / Industry	Metrology & Measurement Industry Standard
Classification of Chinese Standard	A53
Word Count Estimation	24,250
Date of Issue	2022-12-27
Date of Implementation	2023-06-27
Issuing agency(ies)	State Administration for Market Regulation

JJG 1191-2022: Aqueous Urea Solution Dispensers

---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 Vehicle urea filling machine Released on 2022-12-27 2023-06-27 Implementation Released by the State Administration for Market Regulation Verification rules for vehicle urea filling machine Responsible Unit. National Flow Measurement Technical Committee Liquid Flow Sub-Technical Committee Main drafting unit. Beijing Institute of Metrology and Testing Sciences Hubei Institute of Metrology and Testing Technology Henan Institute of Metrology Participating in the drafting unit. Token Hengshan Technology (Guangzhou) Co., Ltd. Zhejiang Langqing Intelligent Technology Co., Ltd. Zhengxing Technology Co., Ltd. This regulation entrusts the Liquid Flow Sub-Technical Committee of the National Flow Measurement Technical Committee to be responsible for interpretation The main drafters of this regulation. Yang Jing (Beijing Institute of Metrology and Testing Sciences) You Jianjun (Hubei Institute of Metrology and Testing Technology) Cui Yaohua (Henan Institute of Metrology) Participating drafters. Li Chen (Beijing Institute of Metrology and Testing Sciences) Zhang material [Token Hengshan Technology (Guangzhou) Co., Ltd.] Si Jianming (Zhejiang Langqing Intelligent Technology Co., Ltd.) Li Yi (Zhengxing 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 Structure (2) 4.2 Working principle(2) 4.3 Use(3) 5 Metrological performance requirements (3) 5.1 Maximum permissible error(3) 5.2 Repeatability(3) 5.3 Payment Amount Error(3) 6 General technical requirements (3) 6.1 Nameplates and markings (3) 6.2 Appearance structure (4) 6.3 Self-locking function(4) 6.4 Seals(4) 7 Measuring Instrument Control(4) 7.1 Test conditions (4) 7.2 Verification items (5) 7.3 Verification method (6) 7.4 Processing of verification results (8) 7.5 Verification period(8) Appendix A Internal Page Reference Format of Verification Certificate/Notification of Verification Result (9) Appendix B Verification Record Reference Format (10) Appendix C Quality Method Verification (13) Appendix D Table of Liquid Expansion Coefficient of Urea Solution (15)

Introduction

JJF1001-2011 "General Metrology Terms and Definitions", JJF1071-2010 "National Metrology Calibration Specification Compilation" "Rules", JJF1059.1-2012 "Assessment and Expression of Measurement Uncertainty" together constitute the basis for formulating this regulation series specification. This regulation refers to the international recommendation OIMLR117 "Non-aqueous liquids" issued by the International Organization of Legal Metrology (OIML). Relevant content, combined with the actual use of my country's vehicle urea filling machine and the status quo of the industry. This regulation is published for the first time. Verification rules for vehicle urea filling machine

1 Scope

This regulation applies to the initial verification, follow-up verification and in-use inspection of vehicle urea filling machines.

2 References

This procedure refers to the following documents. GB 29518-2013 Diesel engine nitrogen oxide reducing agent urea aqueous solution (AUS32) OIMLR117-1 Non-aqueous liquid dynamic measurement system Part 1.Metrology and technical requirements (Dynamic requirements) 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 The following terms and definitions apply to this regulation. 3.1.1 Aqueousureasolution A solution prepared with AUS32 special urea and pure water without any other additives. Note. It meets the technical requirements stipulated in Chapter 5 of GB 29518-2013. Measuring system for filling vehicles with urea solution via a filling gun. The component that converts the flow of liquid into a mechanical rotation signal and sends it to the encoder. 3.1.4 encoder encoder The component that converts the mechanical rotation signal of the flow measurement transducer into an electronic signal and sends it to the control board. It is a circuit board mainly composed of metering microprocessor, monitoring microprocessor, memory, etc. Note. The measurement and control main board can receive the electronic signal sent by the encoder, generate filling volume data, and has data communication, sending display, processing Management, storage, control and other functions. 3.1.6 sight liquid device gas indicator A device used to observe the presence of air bubbles in a flowing liquid. 3.1.7 adjustment device adjustmentdevice The device that can adjust the indication error of the vehicle urea filling machine can only make the error curve basically parallel to the offset, Make the indication error of the vehicle urea filling machine within the maximum allowable error range.

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