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Read more about the article 180 peel test and residual stress test method GB/T 25256-2010
Optical functional film and Release film 180° peel test and residual stress test method
GB/GBT

180 peel test and residual stress test method GB/T 25256-2010

Optical functional film and Release film 180 peel test and residual stress test method (GB/T 25256-2010) Chinese National Standard 1 Scope This standard specifies the test methods for the 180° peel test and residual stress rate of release films. This standard is applicable to the test of the 180° peel test and residual stress rate of release films with plastic as the substrate. 2 Normative references The following documents are essential for the application of this document. For all dated references, only the dated version applies to this document. For all undated references, the latest version (including all amendments) applies…

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May 13, 2025
Read more about the article PW Instrument was awarded the title of “Specialized, Advanced and Innovative” small and medium-sized enterprise
PW Instruments was awarded the title of “Specialized, Advanced and Innovative” small and medium-sized enterprise
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PW Instrument was awarded the title of “Specialized, Advanced and Innovative” small and medium-sized enterprise

PW Instrument  "Specialized, sophisticated, innovative" small and medium-sized enterprises PW Instrument Co., Ltd. has been successfully awarded the title of "specialized, refined, special and innovative" small and medium-sized enterprises for its outstanding performance in technological innovation, product quality and market competitiveness. This honor is awarded by the relevant competent authorities after strict review, and is intended to commend enterprises with professional, refined, distinctive and innovative development advantages in the segmented market. Since its establishment in 2007, PW Instrument Co., Ltd. has always focused on the research and development, production and sales of testing instruments. The factory is located in Yichang…

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March 4, 2025
Read more about the article PW Instruments Showcases Innovations at Shenzhen International Electronic Circuits Exhibition
PW Instruments Showcases Innovations at Shenzhen International Electronic Circuits Exhibition
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PW Instruments Showcases Innovations at Shenzhen International Electronic Circuits Exhibition

Shenzhen, China - The Shenzhen International Electronic Circuits Exhibition opened its doors to a global audience, showcasing the latest advancements in electronic circuits and related technologies. Among the highlights was PW Instruments, a leading manufacturer in precision measurement and testing equipment, which drew significant attention with its array of cutting-edge exhibits.   Led by Eudora, a representative from PW Instruments, visitors were taken on a journey through the company's latest innovations. The exhibition began with the PW-OCA4030 Optical Measuring Machine, a testament to the company's commitment to precision. This 2D dimensional precision measuring instrument harnesses the power of machine vision…

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November 6, 2024
GB/GBT / Test Standards

GB31241-2014 Portable Electronic Product Lithium-Ion Batteries and Battery Packs – Safety Requirements

Introduction This introduction is intended to explain the principles upon which the requirements of this standard are based. Understanding these principles is essential for designing and manufacturing safe lithium-ion batteries and battery packs. It should be noted that this standard only considers the most basic safety requirements for lithium-ion batteries and battery packs to provide protection for personal and property safety, without involving performance and functional characteristics. As technology and processes further develop, further revisions of this standard will inevitably be required. The dangers caused by lithium-ion batteries and battery packs within the scope of this standard are: Leakage, which…

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July 26, 2024