JJF 1859-2020 English PDF

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JJF 1859-2020: Calibration Specification for Standard Ball Bars
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJF 1859-2020	279	Add to Cart	3 days	Calibration Specification for Standard Ball Bars	Valid

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Basic data

Standard ID: JJF 1859-2020 (JJF1859-2020)
Description (Translated English): Calibration Specification for Standard Ball Bars
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A52
Word Count Estimation: 12,199
Date of Issue: 2020-09-11
Date of Implementation: 2021-03-11
Regulation (derived from): Announcement No. 40 (2020) of the State Administration for Market Regulation
Issuing agency(ies): State Administration for Market Regulation

JJF 1859-2020: Calibration Specification for Standard Ball Bars

---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 Standard Ball Bars National Metrology Technical Specifications of the People's Republic of China Standard bat calibration specification 2020-09-11 released 2021-03-11 implementation Issued by the State Administration for Market Regulation Standard bat calibration specification Central unit. National Technical Committee on Geometrical Length Measurement Main drafting unit. Zhejiang Institute of Metrology China Institute of Metrology China Testing Technology Research Institute Participated in the drafting. Shanghai Institute of Metrology and Testing Technology Jiangsu Institute of Metrology This specification entrusts the National Technical Committee on Geometrical Length Measurement to interpret The main drafters of this specification. Zhenhua Mao (Zhejiang Institute of Metrology) Zhou Wenqing (Zhejiang Institute of Metrology) Wang Weinong (China Institute of Metrology) Xiaorong Huang (China Academy of Testing Technology) Participating drafters. Chen Ting (Zhejiang Institute of Metrology) Fangfang Liu (Shanghai Institute of Metrology and Testing Technology) Ma Jianlong (Jiangsu Institute of Metrology)

table of Contents

Introduction (Ⅱ) 1 scope (1) 2 Term (1) 2.1 Standard bat(1) 2.2 Spherical shape error (1) 3 Overview (1) 4 Measurement characteristics (1) 4.1 Ball diameter (1) 4.2 Spherical shape error (1) 4.3 Sphere center distance (1) 5 Calibration conditions (1) 5.1 Environmental conditions (1) 5.2 Measurement standards and other equipment (2) 6 Calibration items and calibration methods (2) 6.1 Measurement (2) 6.2 Processing of measurement results (3) 7 Calibration result expression (3) 8 Recalibration interval (3) Appendix A Example of Measurement Uncertainty Evaluation of Standard Ball Baseball Center Distance Calibration (4) Appendix B Contents of Calibration Certificate and Format of Inner Page (7)

Introduction

This specification is mainly based on JJF 1071-2010 "Rules for the Compilation of National Metrology and Calibration Specifications" and JJF 1059.1- 2012 "Measurement Uncertainty Evaluation and Expression" was compiled. This specification is released for the first time. Standard bat calibration specification

1 Scope

This specification applies to the calibration of standard clubs.

2 term

The following terms and definitions apply to this specification. 2.1 Standard bat The sphere center distance calibrator is composed of two or more linearly arranged balls with equal diameters and their rigid connection structure. 2.2 Spherical shape error The difference between the radii of the two concentric spheres that encompass the spherical contour.

3 overview

Standard bats are mainly used for calibration of three-dimensional coordinate measurement systems. The ball of the standard bat usually uses steel, cemented carbide, Made of ceramics. The spherical surface can be a polished or diffusely reflective surface. The structure of a common standard club is shown in Figure 1.

4 Measurement characteristics

4.1 Ball diameter 4.2 Spherical shape error 4.3 Sphere center distance

5 Calibration conditions

5.1 Environmental conditions ......

Image     

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