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JJF 1747-2019 English PDF

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US$359.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
JJF 1747-2019: (Calibration specification for retroreflective coefficient measuring instrument for body reflective marking)
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJF 1747-2019	359	Add to Cart	3 days	(Calibration specification for retroreflective coefficient measuring instrument for body reflective marking)	Valid

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Basic data

Standard ID: JJF 1747-2019 (JJF1747-2019)
Description (Translated English): (Calibration specification for retroreflective coefficient measuring instrument for body reflective marking)
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A60
Classification of International Standard: 17.180
Word Count Estimation: 16,166
Date of Issue: 2019
Date of Implementation: 2019-12-27
Issuing agency(ies): State Administration for Market Regulation

JJF 1747-2019: (Calibration specification for retroreflective coefficient measuring instrument for body reflective marking)

---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 for retroreflective coefficient measuring instrument for body reflective marking) National Measurement Technical Specification of the People's Republic of China Reflectance measuring instrument for body reflective marking Calibration specifications 2019-09-27 release 2019-12-27 Implementation Issued by the State Administration of Market Supervision and Administration Retro-reflection for body reflective marking Coefficient measuring instrument calibration specification Centralized unit. National Legal Metrology Management Metrology Technical Committee Main drafting unit. Anhui Institute of Metrology 3M China Limited Chinese Academy of Metrology Participated in the drafting unit. Zhejiang Zhejiang University Mingquan Technology Co., Ltd. Gansu Institute of Metrology Guangxi Zhuang Autonomous Region Metrology and Testing Institute This specification entrusts the National Legal Metrology Management Metrology Technical Committee to interpret The main drafters of this specification. Wei Yuandong (Anhui Institute of Metrology) Zhenhua Wang (3M China Limited) Zheng Chundi (Chinese Academy of Metrology) Participating drafters. Wu Yong (Zhejiang Zhejiang Mingquan Technology Co., Ltd.) Gao Decheng (Gansu Metrology Research Institute) Cao Lei (Anhui Institute of Metrology) Zhang Yuheng (Guangxi Zhuang Autonomous Region Metrology and Testing Institute)

Introduction (Ⅱ) 1 Scope (1) 2 References (1) 3 Terms and units of measurement (1) 3.1 Retroreflection (1) 3.2 Reference Center (1) 3.3 Reference axis (1) 3.4 Lighting axis (2) 3.5 Observation axis (2) 3.6 Angle of incidence β (2) 3.7 Observation angle α (2) 3.8 Luminous intensity coefficient R (2) 3.9 Retroreflection coefficient R′ (2) 4 Overview (2) 5 Metrological characteristics (2) 5.1 Indication error (2) 6 Calibration conditions (3) 6.1 Environmental conditions (3) 6.2 Measurement standards and other equipment (3) 7 Calibration items and calibration methods (3) 7.1 Calibration items (3) 7.2 Indication error calibration method (3) 8 Expression of calibration results (4) 8.1 Calibration data processing (4) 8.2 Calibration certificate (4) 8.3 Examples of uncertainty assessment of calibration results (4) 9 Recalibration time interval (5) Appendix A Calibration Record of Retroreflectance Coefficient Measuring Instrument for Body Reflective Marking (Recommended Format) (6) Appendix B. Calibration certificate content of calibration results (7) Appendix C Example of Uncertainty Evaluation of Indication Error Calibration of Retroreflectance Coefficient Measuring Instrument for Body Reflective Marking (9)

Introduction

This specification is based on JJF 1001-2011 "General Measurement Terms and Definitions", JJF 1059.1-2012 "Measurement "Basic series of specifications for the assessment and representation of certainty", JJF 1071-2010 "Rules for Compiling National Measurement and Calibration Specifications" Make it. This specification is mainly compiled with reference to GB/T 26377-2010 "Retroreflective Measuring Instrument". This specification is the first release. Calibration specification for retroreflective coefficient measuring instrument for body reflective marking

1 Scope

This specification is applicable to the calibration of the retroreflective coefficient measuring instrument for body reflective marking.

2 Reference documents

This specification refers to the following documents. JJF 1546-2015 Calibration Standard for Retroreflective Standard Board GB/T 26377-2010 retroreflective measuring instrument 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 Terms and units of measurement

JJF 1546-2015 "Reference Standard Calibration Standard", GB/T 26377-2010 "Retroreflective Measuring Instrument" The terms and definitions defined in and below apply to this specification. 3.1 Retroreflection The reflected light returns from the direction close to the incident light and returns toward the light source (see Figure 1). [GB/T 26377-2010, definition 3.1] Figure 1 Retroreflective system terminology and optical test principle 3.2 Reference Center When determining the characteristics of retroreflective materials, a point given at or near the center of the sample. [GB/T 26377-2010, definition 3.2] 3.3 reference axis It starts at the reference center and is perpendicular to the reflection line of the tested sample. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of JJF 1747-2019_English be delivered?

Answer: Upon your order, we will start to translate JJF 1747-2019_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of JJF 1747-2019_English with my colleagues?

Answer: Yes. The purchased PDF of JJF 1747-2019_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.