3氯甲烷/氯仿气体检测管检测范围0.5-30ppm的详细介绍3氯甲烷/氯仿气体检测管137LA检测范围0.5-30ppm3氯甲烷/氯仿气体检测管137LA检测范围2-12ppmPerformanceMeasuringRange0.5to2ppm2to12ppm12to30ppmNumberofPumpStrokes421CorrectionFactor0.2512.5SamplingTime2minutesperpumpstrokeDetectingLimit0.2ppm（n=4）ColourChangeWhite→PalepurpleReactionPrincipleCHCl3+I2O5+H2S2O7→Cl2Cl2+（CH3C10H5NH2）2→PalepurpleproductsCoefficientofVariation10%（for2to4ppm）,5%（for4to12ppm）ShelfLife1YearCorrectionsfortemperature&humidityTemperaturecorrectionisnecessaryStorethetubesintherefrigeratortokeepat10ºC（50ºF）orbelow.PossiblecoexistingsubstancesａndtheirinterferencesSubstanceConcentrationInterferenceChangecolourbyitselftoChlorineNoNoBromineNoNoIodineNoNoUnsaturatedhalogenatedHCs+PalepurpleSaturatedhalogenatedHCs+PalepurpleCalibrationgasgenerationDiffusiontubemethodTLV-TWATLV-STELExplosiverange10ppm--仕様目盛範囲：2～12ppm〔基準n＝2〕測定範囲：0.5〔n＝4〕～30ppm〔n＝1〕吸引回数〔n〕：4,2〔基準〕,11回（100ml）の吸引時間：2分検知限度：0.2ppm〔n＝4〕変色：白色→淡紫色温?湿度補正：温度有効期限：1年（冷蔵庫保存）指示精度：CV＝5～10%（CV：変動係数＝σ：標準偏差÷平均値×100）干渉ガスガス名共存の場合の濃度と結果単独の場合塩素影響しない変色しない)