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中華人民共和國國家計量檢定規程JJG693-2004可燃氣體檢測報警器TheAlarmerDetectorsofCombustibleGas2004一03一02發布2004一09一02實施國家 質 量 監 督 檢 驗 檢 疫 總 局 發布JJG693-2004 可燃氣體檢測報警器檢定規程 產 ‘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.口本規程經國家質量監督檢驗檢疫總局于2004年03月02日批準，并 自 2004年 09月02日起施行。歸口單位 : 全國環境化學計量技術委員會起草單位 : 國家標準物質研究中心本規程委托全國環境化學計量技術委員會負責解釋.TJG 693- 2004 本規程主要起草人 :湛永華 (國家標準物質研究中心)參加起草人 :周澤義 (國家標準物質研究中心)張國賢(國家標準物質研究中心)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程 1 范圍本規程適用于非礦井作業環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、后續檢定和使用中的檢驗。

其他結構或用途的儀器可參照 本規程進行校準。 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。主要結構由檢測元件、放大電路、報警系統、顯示器等組成。用 于監測和報警該環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 通用技術要求 4.1外觀及通電檢查 4.1.1外觀良好，結構完整，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齊全、清楚。 4.1.2 儀器連接可靠，各旋鈕或按鍵應能正常操作和控制。 4.1.3 儀器通電檢查時，外露的可動部件應能正常工作，顯示部分應清晰、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不小于20Mna 5 計量器具控制儀器的控制包括首次檢定、后續檢定和使用中的檢驗。 5.1檢定條件 5.1.1 檢定環境條件環境溫度:(0一40)T;相對濕度:

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