JJG 475-2008 Translated English of Chinese Standard. JJG475-2008: Electronic Universal Testing Machinehttps://www.chinesestandard.net, 2 nov. 2019 - 24 pages This Regulation is applicable to the first verification, subsequent verification, and in-use verification of electronic universal testing machine. Type evaluation and verification of the electronic tension (or compression) testing machine may be carried out with reference to this Regulation. |
Table des matières
| 5 | |
Measuring instrument control | 12 |
Appendix A Verification record of electronic universal testing machine | 19 |
Expressions et termes fréquents
according to formula allowable errors arithmetic mean backward in indication beam moving speed beam speed calculated according Certificate number coaxiality tester dB(A dial gauge 0.01 electronic universal testing error of beam error of extensometer error of forward error of indication force indicating device force measuring system force value F forward and backward gauge length GB/T heavy hammer indication value repeatability Institute of Measurement Institute of Metrology Level of testing lower limit machine under verification Maximum allowable value maximum test force Measurement and Testing measurement point measuring instrument measuring range meet the requirements mm/min moving beam noise q of indication relative error q relative resolution requirements of Table resolution of indicating result shall meet Shandong Institute Shaoxing Shenzhen sound level meter speed of beam standard dynamometer test sample Testing Technology true force value universal testing machine value of beam verification certificate Verification items Verification of relative verification points Zero relative error