中华人民共和国国家计量检定规程JJG of the Peoples Republic of ChinaJJG 762-2007引 伸 计Extensometer2007一08一21发布 2008一02一21买施 Ratified on Aug 21, 2007 Implemented on Feb 21, 2008 国家质量监督检验检疫总局发布Ratified by General Administration of Quality Supervision, Inspection and Quarantine引伸计检定规程Verification RegulationFor Extensometer 本规程经国家质量监督检验检疫总局2007年8月21日批准，并自2008年2月21日起施行。The regulation is ratified by General Administration of Quality Supervision, Inspection and Quarantine on Aug 21, 2007 and implemented on Feb 21, 2008.归口单位: 全国力值硬度计量技术委员会Specified Administrative Authority: The National Force Value Hardness Measurement Technology Committee主要起草单位: 钢铁研究总院Main Drafting Institution: Iron and Steel Research Institute 湖北省计量测试技术研究院 Institute of Measuring and Testing Technology of Hubei Province参加起草单位: 国防科学技术大学Participating drafting Units: National University of Defense Technology长春试验机研究所 Changchun Research Institute of Testing Machine本规程委托全国力值硬度计量技术委员会负责解释The National Force Value Hardness Measurement Technology Committee is responsible for the interpretation of the regulation.本规程主要起草人:Chief Draftsmen of the Regulation: 王春华 (钢铁研究总院) Wang Chunhua （Iron and Steel Research Institute）王大充 (湖北省计量测试技术研究院)Wang Dachong (Institute of Measuring and Testing Technology of Hubei Province) 崔燕生 (钢铁研究总院) Cui Yansheng (Iron and Steel Research Institute) 郑文龙 (国防科学技术大学) Zheng Wenlong (National University of Defense Technology)参加起草人:Participating draftsmen: 王学智 (长春试验机研究所) Wang Xuezhi (Changchun Institute of Testing Machine)周巍松 (钢铁研究总院)Zhou Weisong (Iron and Steel Research Institute)梁新邦 (钢铁研究总院)Liang Xinbang (Iron and Steel Research Institute) 胡翔 (湖北省计量测试技术研究院) Hu Xiang (Institute of Measuring and Testing Technology of Hubei Province) 刘杰 (湖北省计量测试技术研究院) Liu Jie (Institute of Measuring and Testing Technology of Hubei Province)目 录Content 1范围（1）1 Scope - (1)2引用文献（1）2 Cited References - (1)3概述（1）3 Overview - (1)4计量性能要求（1）4 Requirements of Measurement Performances -( 1)5通用技术要求（2）5 General Technical Requirements - (2)S.1铭牌（2）S.1 Nameplate - (2)S.2外观与质量（2）S.2 Appearance and Quality - (2)S.3显示与输出（2）S.3 Display and Output - (2)6计量器具控制（2）6 Control of Measuring Instruments - (2)6.1检定条件（2）6.1 Verification Conditions - (2)6.2检定项目和检定方法（3）6.2 Verification Items and Verification Method - (3)6.3检定结果的处理（4）6.3 Processing of Verification Results - (4)6.4检定周期（5）6.4 Calibrating Cycle - (5)附录A引伸计检定证书内页（6）Appendix A Inner Sheet of Verification Certificate of Extensometer - (6)附录B引伸计检定记录格式（7）Appendix B Format of Verification Record of Extensometer - (7)附录C引伸计的误差带示例（8）Appendix C Demonstration of Error Bands of Extensometer -(8) 附录D引伸计检定示例（9）Appendix D Verification Demonstration of Extensometer - (9)引伸计检定规程Verification Regulation for Extensometer1范围1 Scope本规程适用于引伸计的首次检定、后续检定和使用中检定。The regulation applies to the first-time, follow-up and in-service verifications in use of extensometer. 2 引