中华人民共和国国家计量检定规程JJG693-2004可燃气体检测报警器TheAlarmerDetectorsofCombustibleGas2004一03一02发布2004一09一02实施国家 质 量 监 督 检 验 检 疫 总 局 发布JJG693-2004 可燃气体检测报警器检定规程 产 ‘为口.口.、，.O.”‘、，。.O.。，0一，.O.O.JJG693-2004VerificationRegulationof代替 JJG693-1990己会theAlarmerDetectorsofCombustibleGas气.口，0.o.o.o.o.o.。 。‘.公，。.o.o.o.口本规程经国家质量监督检验检疫总局于2004年03月02日批准，并 自 2004年 09月02日起施行。归口单位 : 全国环境化学计量技术委员会起草单位 : 国家标准物质研究中心本规程委托全国环境化学计量技术委员会负责解释.TJG 693- 2004 本规程主要起草人 :湛永华 (国家标准物质研究中心)参加起草人 :周泽义 (国家标准物质研究中心)张国贤(国家标准物质研究中心)JJG693-2004目录 1 范围··························································································…… (1) 2 概述 ···················，，······(1) 3计量性能要求 ·············································································…… (1) 4 通用技术要求 ········‘二·········，··········可燃气体检测报警仪，·········，····】····，·······，····】····…… (1) 4.1外观及通电检查 ······················································，··········，·····一· (1) 4.2 绝缘电阻 ·····，·········，·································································…… (2) 5计量器具控制 ·········································，·········，·························一 (2) 5.1检定条件 ·············，·········································，····················voc气体检测仪，···…·… (2) 5.2检定项目·····，········，·································，，·······，，·········可燃气体检测报警仪，····…… (2) 5.3 检定方法 ·················································································…… (3) 5.4 检定结果的处理 ··················，·，，·····，·····，··，，········，】·········。

·… (4) 5.5检定周期 ··············································································…·… (4) 附录A 流量要求 ··························································，········，，····…… (5) 附录B 标准物质的量值溯源要求 ····················································…… (6) 附录C 检定证书 (背面)格式 ·········································乙醇报警器，···············一· (7) 附录D 检定结果通知书 (背面)格式 ····················，·可燃气体检测报警仪，·················，······一· (8) 附录E检定记录格式 ··，··································································……(9) 附录F 常见可燃气体爆炸限 ···············，·······，····················，·，···(10)JJG 693- 2004可燃气体检测报警器检定规程 1 范围本规程适用于非矿井作业环境中使用的便携式和固定式可燃气体检测报警器 (以下 简称 “仪器”)的首次检定、后续检定和使用中的检验。

其他结构或用途的仪器可参照 本规程进行校准。 2 概述仪器的检测原理主要有催化燃烧型、热导型、半导体型和红外线吸收型等。采样方 式有扩散式和吸人式。主要结构由检测元件、放大电路、报警系统、显示器等组成。用 于监测和报警该环境中可燃气体的浓度。 3 计t性能要求计量性能要求见表表 1 计f性能要求示值误差土5% FS'响应时间扩散 式60s吸入式30s重 复性2%报警误差士10%漂移零点漂移土2量程漂移士5%FS 注:..FS”表示仪器的满量程，下同。 4 通用技术要求 4.1外观及通电检查 4.1.1外观良好，结构完整，仪器名称、型号、制造厂名称、出厂时间、编号、防爆 标志和制造计量器具许可证及编号等应齐全、清楚。 4.1.2 仪器连接可靠，各旋钮或按键应能正常操作和控制。 4.1.3 仪器通电检查时，外露的可动部件应能正常工作，显示部分应清晰、正确。 4.1.4 附件齐全，并附有制造厂的使用说明书。.T.TG 693- 2004 4.2 绝缘电阻对使用交流电源的仪器，相、中连线对地的绝缘电阻应不小于20Mna 5 计量器具控制仪器的控制包括首次检定、后续检定和使用中的检验。 5.1检定条件 5.1.1 检定环境条件环境温度:(0一40)T;相对湿度:

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