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中華人民共和國國家計量檢定規(guī)程JJG693-2004可燃氣體檢測報警器TheAlarmerDetectorsofCombustibleGas2004一03一02發(fā)布2004一09一02實施國家 質(zhì) 量 監(jiān) 督 檢 驗 檢 疫 總 局 發(fā)布JJG693-2004 可燃氣體檢測報警器檢定規(guī)程 產(chǎn) ‘為口.口.、，.O.”‘、，。.O.。，0一，.O.O.JJG693-2004VerificationRegulationof代替 JJG693-1990己會theAlarmerDetectorsofCombustibleGas氣.口，0.o.o.o.o.o.。 ?！?公，。.o.o.o.口本規(guī)程經(jīng)國家質(zhì)量監(jiān)督檢驗檢疫總局于2004年03月02日批準，并 自 2004年 09月02日起施行。歸口單位 : 全國環(huán)境化學計量技術(shù)委員會起草單位 : 國家標準物質(zhì)研究中心本規(guī)程委托全國環(huán)境化學計量技術(shù)委員會負責解釋.TJG 693- 2004 本規(guī)程主要起草人 :湛永華 (國家標準物質(zhì)研究中心)參加起草人 :周澤義 (國家標準物質(zhì)研究中心)張國賢(國家標準物質(zhì)研究中心)JJG693-2004目錄 1 范圍··························································································…… (1) 2 概述 ···················，，······(1) 3計量性能要求 ·············································································…… (1) 4 通用技術(shù)要求 ········‘二·········，··········可燃氣體檢測報警儀，·········，····】····，·······，····】····…… (1) 4.1外觀及通電檢查 ······················································，··········，·····一· (1) 4.2 絕緣電阻 ·····，·········，·································································…… (2) 5計量器具控制 ·········································，·········，·························一 (2) 5.1檢定條件 ·············，·········································，····················voc氣體檢測儀，···…·… (2) 5.2檢定項目·····，········，·································，，·······，，·········可燃氣體檢測報警儀，····…… (2) 5.3 檢定方法 ·················································································…… (3) 5.4 檢定結(jié)果的處理 ··················，·，，·····，·····，··，，········，】·········。

·… (4) 5.5檢定周期 ··············································································…·… (4) 附錄A 流量要求 ··························································，········，，····…… (5) 附錄B 標準物質(zhì)的量值溯源要求 ····················································…… (6) 附錄C 檢定證書 (背面)格式 ·········································乙醇報警器，···············一· (7) 附錄D 檢定結(jié)果通知書 (背面)格式 ····················，·可燃氣體檢測報警儀，·················，······一· (8) 附錄E檢定記錄格式 ··，··································································……(9) 附錄F 常見可燃氣體爆炸限 ···············，·······，····················，·，···(10)JJG 693- 2004可燃氣體檢測報警器檢定規(guī)程 1 范圍本規(guī)程適用于非礦井作業(yè)環(huán)境中使用的便攜式和固定式可燃氣體檢測報警器 (以下 簡稱 “儀器”)的首次檢定、后續(xù)檢定和使用中的檢驗。

其他結(jié)構(gòu)或用途的儀器可參照 本規(guī)程進行校準。 2 概述儀器的檢測原理主要有催化燃燒型、熱導型、半導體型和紅外線吸收型等。采樣方 式有擴散式和吸人式。主要結(jié)構(gòu)由檢測元件、放大電路、報警系統(tǒng)、顯示器等組成。用 于監(jiān)測和報警該環(huán)境中可燃氣體的濃度。 3 計t性能要求計量性能要求見表表 1 計f性能要求示值誤差土5% FS'響應(yīng)時間擴散 式60s吸入式30s重 復性2%報警誤差士10%漂移零點漂移土2量程漂移士5%FS 注:..FS”表示儀器的滿量程，下同。 4 通用技術(shù)要求 4.1外觀及通電檢查 4.1.1外觀良好，結(jié)構(gòu)完整，儀器名稱、型號、制造廠名稱、出廠時間、編號、防爆 標志和制造計量器具許可證及編號等應(yīng)齊全、清楚。 4.1.2 儀器連接可靠，各旋鈕或按鍵應(yīng)能正常操作和控制。 4.1.3 儀器通電檢查時，外露的可動部件應(yīng)能正常工作，顯示部分應(yīng)清晰、正確。 4.1.4 附件齊全，并附有制造廠的使用說明書。.T.TG 693- 2004 4.2 絕緣電阻對使用交流電源的儀器，相、中連線對地的絕緣電阻應(yīng)不小于20Mna 5 計量器具控制儀器的控制包括首次檢定、后續(xù)檢定和使用中的檢驗。 5.1檢定條件 5.1.1 檢定環(huán)境條件環(huán)境溫度:(0一40)T;相對濕度:

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