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JJG 404-2023 English PDF

Q: How long will the true-PDF of English version of JJG 404-2023 be delivered?

Upon your order, we will start to translate JJG 404-2023_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.

Q: Can I share the purchased PDF of JJG 404-2023_English with my colleagues?

Yes. The purchased PDF of JJG 404-2023_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

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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). Avoidance of Double Taxation Agreements (DTAs) between Singapore and 100+ Countries: https://www.iras.gov.sg/taxes/international-tax

Q: Do you accept my currency other than USD?

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Q: Should I purchase the latest version JJG 404-2023?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version JJG 404-2023 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.

US$399.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email.
JJG 404-2023: Calibrators for Railway Track Gages
Status: Valid

JJG 404: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJG 404-2023	399	Add to Cart	4 days	Calibrators for Railway Track Gages	Valid
JJG 404-2015	879	Add to Cart	4 days	Calibrators for Railway Track Gage	Obsolete
JJG 404-2008	799	Add to Cart	4 days	Verification Regulation of Calibrator for Railway Track Gage	Obsolete
JJG 404-2003	599	Add to Cart	4 days	Verification Regulation of Calibrater for Railway Track Gauging Rule	Obsolete
JJG 404-1992	279	Add to Cart	3 days	Verification Regulation for Calibrater for Railway Track Gauging Rule	Obsolete
JJG 404-1986	RFQ	ASK	3 days	Verification Regulation of Calibrators for Railway Track Gage	Obsolete

Similar standards

JJG 249 JJG 443 JJG 134

Basic data

Standard ID: JJG 404-2023 (JJG404-2023)
Description (Translated English): Calibrators for Railway Track Gages
Sector / Industry: Metrology & Measurement Industry Standard
Word Count Estimation: 18,188
Date of Issue: 2023-03-15
Date of Implementation: 2023-09-15
Issuing agency(ies): State Administration for Market Regulation

JJG 404-2023: Calibrators for Railway Track Gages

---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 JJG 404-2023 Railway Gauge Calibration Device Released on 2023-03-15 2023-09-15 Implementation Released by the State Administration for Market Regulation Verification regulations for railway gauge ruler verifier Replace JJG 404-2015 Responsible Unit: National Railway Measuring Instruments Measuring Technology Committee Special for Railways Length Sub-Technical Committee Main drafting unit: Standard Metrology Research Institute of China Academy of Railway Sciences Group Co:, Ltd: research institute China Railway Shanghai Bureau Group Co:, Ltd: Science and Technology Research Institute Metrology Institute of China Railway Kunming Bureau Group Co:, Ltd: Participated in the drafting unit: Fushun Hengtailong Measurement and Control Technology Co:, Ltd: Chengdu Sifang Ruibang Measurement and Control Technology Co:, Ltd: This regulation entrusts the National Railway Special Measuring Instrument Metrology Technical Committee to divide the railway special length The technical committee is responsible for explaining The main drafters of this regulation: Guo Yishi (Institute of Standards and Metrology, China Academy of Railway Sciences Group Co:, Ltd:) Wu Wenting (Science and Technology Research Institute of China Railway Shanghai Bureau Group Co:, Ltd:) Yang Liheng (Measurement Institute of China Railway Kunming Bureau Group Co:, Ltd:) Lu Jizhe (Institute of Standards and Metrology, China Academy of Railway Sciences Group Co:, Ltd:) Participating drafters: Gao Jun (Fushun Hengtailong Measurement and Control Technology Co:, Ltd:) Wen Xu (Chengdu Sifang Ruibang Measurement and Control Technology Co:, Ltd:)

Introduction (Ⅱ) 1 Scope(1) 2 Overview(1) 3 Metrological performance requirements (2) 3:1 Surface roughness of the working face (2) 3:2 The height difference between the top surface of the movable and fixed measuring block (2) 3:3 Zero coplanarity of the top surface of movable and fixed measuring blocks (2) 3:4 The verticality of the movable and fixed measuring block to measure the common plane of the two top faces (2) 3:5 Parallelism between the positioning surfaces of the movable and fixed measuring blocks and measuring boards (2) 3:6 The distance between the measuring surface of the measuring block and the measuring surface of the measuring plate and their parallelism (2) 3:7 The lateral variation of the movable measuring block (2) 3:8 Live beam stiffness(2) 3:9 Working rod length(2) 3:10 Gauge(2) 3:11 Superelevation(2) 3:12 Angle block (3) 4 General technical requirements (3) 4:1 Appearance(3) 4:2 Interaction of various parts (3) 4:3 Indicating device(3) 5 Measuring Instrument Control(3) 5:1 Test conditions (3) 5:2 Verification items (4) 5:3 Verification method (5) 5:4 Processing of verification results (8) 5:5 Verification period(8) Appendix A Verification Record Reference Format of Gauge Calibration Device (9) Appendix B Test Certificate and Test Result Notification Inner Page Format (11)

Introduction

JJF1001-2011 "General Metrology Terms and Definitions", JJF1002-2010 "National Metrology Verification Regulations Compilation" "Rules", JJF1059:1-2012 "Assessment and Expression of Measurement Uncertainty" together constitute the basis for revising this regulation series specification: This regulation revises JJG 404-2015 based on JJG 219-2015 "Standard Gauge Railway Gauge Ruler": Compared with JJG 404-2015, the main technical changes except editorial modifications are as follows: ---Delete the requirements of the second-level calibrator and the corresponding verification method, and cancel the accuracy classification of the calibrator; --- Canceled the calibrator for reproducing ultra-high values (Form 2) according to the tangent principle, and deleted the relevant requirements and verification method; ---Delete the verification equipment "special level" and "special steel ruler", delete the original regulations Appendix A and appendix Record B related technical requirements and verification methods; --- Increased the verification device "standard measuring rod"; --- Added the measurement characteristics of movable beam stiffness and corresponding verification methods; --- Added the requirements for the return value of the track gauge and the corresponding verification method: The previous releases of this regulation are as follows: ---JJG 404-2015; ---JJG 404-2008; ---JJG 404-2003; ---JJG 404-1986: Verification regulations for railway gauge ruler verifier

1 Scope

This regulation is applicable to the initial verification, follow-up verification and in-use inspection of standard gauge railway gauge ruler calibrator: also It can be used as a reference for the traceability of other gauge railway gauge gauges:

2 Overview

Standard Gauge Railway Gauge Calibration Device (hereinafter referred to as the Verifier) is used to verify the standard gauge railway gauge Special measuring instruments for railways such as gauge, inspection interval, back protection distance, and super height: The calibrator is divided into display with indicating device There are two modes of measuring parameters and reproducing the measuring parameters with blocks (hereinafter referred to as indicating type and block type): The structure of the tester See Figure 1 for illustration: (a) Support form at both ends (b) Intermediate support form Figure 1 Schematic diagram of the structure of the railway gauge gauge tester 1-Super high movable end; 2-Inclination pad (1); 3-Gauge fixed measuring block; 4-Measuring plate (1); 5-Ultra-high value reproduction device; 6-Adjusting screw; 7-Active beam; 8-Zero level indicating device; 9-Fixed beam; 10-Measuring rod bracket; 11-Measuring plate (2); 12-Inclination pad (2); 13-Gauge movable measuring block; 14-Gauge value reproduction device; 15-Super high fixed end; 16-Working rod ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of JJG 404-2023_English be delivered?

Answer: Upon your order, we will start to translate JJG 404-2023_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 404-2023_English with my colleagues?

Answer: Yes. The purchased PDF of JJG 404-2023_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.

Question 5: Should I purchase the latest version JJG 404-2023?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version JJG 404-2023 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.