GB/T 38243-2019 English PDF

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GB/T 38243-2019: Rubber - Calibration and verification of hardness testers
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 38243-2019	494	Add to Cart	3 days	Rubber - Calibration and verification of hardness testers	Valid

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Basic data

Standard ID: GB/T 38243-2019 (GB/T38243-2019)
Description (Translated English): Rubber - Calibration and verification of hardness testers
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: N72
Classification of International Standard: 19.060; 83.060
Word Count Estimation: 26,255
Date of Issue: 2019-10-18
Date of Implementation: 2020-05-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 38243-2019: Rubber - Calibration and verification of hardness 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.
Rubber--Calibration and verification of hardness testers ICS 19.060; 83.060 N72 National Standards of People's Republic of China Rubber hardness tester and calibration (ISO 18898.2016, IDT) Published on.2019-10-18 2020-05-01 implementation State market supervision and administration China National Standardization Administration issued

Content

Foreword III 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Technical requirements for inspection and calibration 1 4.1 Environmental conditions 1 4.2 Inspection and calibration requirements 2 5 Inspection and calibration methods 9 5.1 Technical requirements for measuring instruments for inspection and calibration 9 5.2 Overview of Inspection and Calibration Methods 10 5.2.1 Pressure pin 10 5.2.2 Geometric dimensions of the presser foot 10 5.2.3 Pressure stick extension 10 5.2.4 Pressing foot contact force 16 5.2.5 Spring test force 16 5.2.6 Contact force and total test force of rubber international hardness tester 19 5.2.7 Test force retention time 20 6 Inspection and calibration certificate 20

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard uses the translation method equivalent to ISO 18898.2016 "Test and Calibration of Rubber Hardness Tester". The documents of our country that have a consistent correspondence with the international documents referenced in this standard are as follows. Rubber and rubber -- Determination of hardness of indented rubber -- Part 1 . Shore hardness test method (Shaoer hardness) (ISO 7619-1.2004, IDT) Rubber and rubber -- Determination of hardness of indented rubber -- Part 2 . Portable rubber country Hardness test method (ISO 7619-2.2004, IDT) ---GB/T 6031-2017 Determination of hardness of vulcanized rubber or thermoplastic rubber (10IRHD~100IRHD) (ISO 48. 2010, IDT) ---GB/T 25269-2010 Rubber Test Equipment Calibration Guide (ISO 18899.2004, IDT) ---GB/T 27025-2008 General requirements for testing and calibration laboratory capabilities (ISO /IEC 17025.2005, IDT) Please note that some of the contents of this document may involve patents. The issuing organization of this document is not responsible for identifying these patents. This standard was proposed by the China Machinery Industry Federation. This standard is under the jurisdiction of the National Testing Machine Standardization Technical Committee (SAC/TC122). This standard was drafted. Shenzhen Huajian Testing Co., Ltd., Wuxi Metrology and Testing Institute, Guangzhou University, Deshang Bo Rui Instrument (Shanghai) Company, Quanzhou Fengze Donghai Instrument Hardness Block Factory, China Machine Testing Equipment Co., Ltd., Chengde Jinjian Testing Instrument Co., Ltd., Shangshang Haicheng Metrology and Testing Technology Research Institute. The main drafters of this standard. Huang Qing, Yang Xiaowei, Xu Zhonggen, Tan Zhixue, Chen Junshui, Yang Zhengwang, Zhang Xiangling, Yan Weiliang. Rubber hardness tester and calibration

1 Scope

This standard specifies Type A, Type D, AO and AM Shore Hardness Testers (see ISO 7619-1), Portable Rubber International Hardness Tester (see ISO 7619-2), rubber international hardness tester (see ISO 48) and ultra-soft rubber hardness tester (see ISO 27588) technical requirements for inspection and calibration Summation method.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. ISO 48 vulcanized rubber or thermoplastic rubber hardness (10IRHD~100IRHD) [Rubber, vulcanizedor thermoplastic-Determinationofhardness(hardnessbetween10IRHDand100IRHD)] Vulcanized rubber or thermoplastic rubbers - Test method for hardness - Part 1 . Shore hardness test method (Shore hardness) [Rubber, vulcanizedorthermoplastic-Determinationofindentationhardness-Part 1. Durometer Method(Shorehardness)] Vulcanized rubber or thermoplastic rubbers - Determination of hardness - Part 2. Portable rubber international hardness test method (Rubber, vulcanizedorthermoplastic-Determinationofindentationhardness-Part 2. IRHDpocket Metermethod) ISO 18899 Rubber Test Equipment Calibration Guide (Rubber-Guidetothecalibrationoftestequipment) ISO 27588 vulcanized rubber and thermoplastic rubber with static softness tester using a soft rubber hardness tester [Rubber, vulcanizedor thermoplastic-Determinationofdead-loadhardnessusingtheverylowrubberhardness(VLRH) Scale] General requirements for ISO /IEC 17025 testing and calibration laboratory capabilities (Generalrequirementsforthecompetenceof Testingandcalibrationlaboratorie)

3 Terms and definitions

The terms and definitions defined by ISO 48 and ISO 18899 apply to this document.

4 Technical requirements for inspection and calibration

4.1 Environmental conditions The room temperature should be within the range of 18 ° C ~ 25 ° C for inspection and calibration. ......

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