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JJF 1749-2019 English PDF

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US$379.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email.
JJF 1749-2019: Calibration Specification for Vehicle Contour Dimensions Testers
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJF 1749-2019	379	Add to Cart	4 days	Calibration Specification for Vehicle Contour Dimensions Testers	Valid

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Basic data

Standard ID: JJF 1749-2019 (JJF1749-2019)
Description (Translated English): Calibration Specification for Vehicle Contour Dimensions Testers
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A52
Classification of International Standard: 17.040
Word Count Estimation: 17,169
Date of Issue: 2019
Date of Implementation: 2019-12-27
Issuing agency(ies): State Administration for Market Regulation

JJF 1749-2019: Calibration Specification for Vehicle Contour Dimensions Testers

---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.
(Calibration Specification of Automobile External Dimension Tester) National Measurement Technical Specification of the People's Republic of China Calibration Specification of Automobile External Dimension Tester 2019-09-27 release 2019-12-27 Implementation Issued by the State Administration of Market Supervision and Administration Calibration Specification of Automobile External Dimension Tester Centralized unit. National Legal Metrology Management Metrology Technical Committee Main drafting unit. China Institute of Testing Technology Guizhou Metrology and Testing Institute Henan Institute of Metrology Participated in the drafting unit. Chengdu Jiacheng Hongyi Technology Co., Ltd. Shijiazhuang Huayan Transportation Technology Co., Ltd. Hefei Qiangkeda Technology Development Co., Ltd. Zhejiang Jiangxing Automobile Testing Equipment Co., Ltd. This specification entrusts the National Legal Metrology Management Metrology Technical Committee to interpret The main drafters of this specification. Luo Wenbo (China Institute of Testing Technology) Wang Yong (Guizhou Metrology and Testing Institute) Qifeng Zhang (Henan Institute of Metrology) Participating drafters. Yang Jingyun (Chengdu Jiacheng Hongyi Technology Co., Ltd.) Kang Jie (Shijiazhuang Huayan Transportation Technology Co., Ltd.) Yang Huaxi (Hefei Qiang Keda Technology Development Co., Ltd.) Zhou Shensheng (Zhejiang Jiangxing Automobile Testing Equipment Co., Ltd.)

Introduction (Ⅱ) 1 Scope (1) 2 References (1) 3 Overview (1) 4 Measurement characteristics (1) 4.1 Indication error (1) 4.2 Repeatability (1) 5 Calibration conditions (1) 5.1 Environmental conditions (1) 5.2 Measurement standards and other equipment (1) 5.3 Site facilities (2) 6 Calibration items and calibration methods (2) 6.1 Calibration items (2) 6.2 Calibration of indication error (2) 6.3 Repeatability (4) 7 Expression of calibration results (4) 8 Recalibration time interval (4) Appendix A Calibration Records of Automobile External Dimensions Tester (5) Appendix B. Calibration certificate (inner page) content (6) Appendix C Examples of Uncertainty Evaluation of Indication Error Measurement of Automobile Exterior Dimension Detector (7)

Introduction

This specification is based on JJF 1059.1-2012 "Measurement Uncertainty Evaluation and Expression", JJF 1071-2010 "National The requirements of the “Writing Rules for the Calibration Standards”. This specification refers to GB 1589-2016 "External Dimensions, Axle Loads and Mass Limits of Automobiles, Trailers, and Trains", GB 18565-2016 "Comprehensive performance requirements and inspection methods of road transport vehicles", GB 21861-2014 "Motor vehicles Safety technical inspection items and methods", GB/T 3730.3 "Terms and definitions of vehicles and trailers and vehicle dimensions" Formulated with GB/T 15089 "Classification of Motor Vehicles and Trailers". This specification is the first release. Calibration Specification of Automobile External Dimension Tester

1 Scope

This specification is applicable to the calibration of the car's external dimension detector.

2 Reference documents

This specification refers to the following documents. GB 1589-2016 Cars, trailers and car trains, external dimensions, axle loads and quality limits GB/T 3730.3 Terms and Definitions of Automobiles and Trailers GB 18565-2016 Comprehensive performance requirements and inspection methods of road transport vehicles GB 21861-2014 Motor vehicle safety technical inspection items and methods For dated reference documents, only the dated version applies to this specification; for those without date references The latest version (including all amendments) is applicable to this specification.

3 Overview

The car outline size detector (hereinafter referred to as the detector) is used to automatically measure the car outline size (length, width, High) devices generally use optical imaging, infrared or laser technology. The detector mainly includes the front-end collection system System and back-end analysis processing system.

4 Metering characteristics

4.1 Indication error According to 5.1.1.1 in GB 18565-2016 and Appendix A.1.2 in GB 21861-2014, the maximum length is Allowable error. ±0.8% or ±50mm; width and height maximum allowable error. ±0.8% or ±20mm. 4.2 Repeatability Generally not more than 0.8%. Note. The above indicators are not suitable for qualification judgment, and are for reference only.

5 Calibration conditions

5.1 Environmental conditions 5.1.1 Ambient temperature. -10℃~45℃; 5.1.2 Environmental relative humidity. not more than 85%. 5.1.3 Calibration should be performed in an environment free of pollution, light, vibration, electromagnetic interference, etc. 5.2 Measurement standards and other equipment See Table 1 for measurement standards and other equipment. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of JJF 1749-2019_English be delivered?

Answer: Upon your order, we will start to translate JJF 1749-2019_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 JJF 1749-2019_English with my colleagues?

Answer: Yes. The purchased PDF of JJF 1749-2019_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.