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简单介绍:
三氯甲烷/氯仿气体检测管137LA 检测范围0.5-30ppm,三氯甲烷/氯仿气体检测管137LA 检测范围0.5-30ppm,三氯甲烷(氯仿)检测管137CHCl3 Chloroform相关产品. 石脑油气体检测管价格****06 106 165LGastec便携式气体检测管乙二醇检测管(HOCH2CH2OH)气体检测管是用来测定某种气体在某一环境中所含浓度的简易检测装置。
详情介绍:
三氯甲烷/氯仿气体检测管137LA 检测范围0.5-30ppm
三氯甲烷/氯仿气体检测管137LA 检测范围2-12ppm
Performance
| Measuring Range |
| |||
| Number of Pump Strokes |
| |||
| Correction Factor |
| |||
| Sampling Time | 2 minutes per pump stroke | |||
| Detecting Limit | 0.2 ppm (n=4) | |||
| Colour Change | White → Pale purple | |||
| Reaction Principle | CHCl3 + I2O5 + H2S2O7 → Cl2 Cl2 + (CH3C10H5NH2)2→ Pale purple products | |||
| Coefficient of Variation | 10% (for 2 to 4 ppm), 5% (for 4 to 12 ppm) | |||
| Shelf Life | 1 Year | |||
| Corrections for temperature & humidity | Temperature correction is necessary | |||
| Store the tubes in the refrigerator to keep at 10ºC (50ºF) or below. | ||||
Possible coexisting substances and their interferences
| Substance | Concentration | Interference | Change colour by itself to |
| Chlorine | No | No | |
| Bromine | No | No | |
| Iodine | No | No | |
| Unsaturated halogenated HCs | + | Pale purple | |
| Saturated halogenated HCs | + | Pale purple |
| Calibration gas generation | Diffusion tube method |
| TLV-TWA | TLV-STEL | Explosive range |
| 10 ppm | - | - |
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〕,1 |
| 1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 | |
| 臭素 | 影響しない | 変色しない | |
| ヨウ素 | 影響しない | 変色しない | |
| 不飽和ハロゲン化炭化水素 | +誤差 | 淡紫色に変色 | |
| 飽和ハロゲン化炭化水素 | +誤差 | 淡紫色に変色 |
| 校正用ガス | ガス拡散管法 |
| 許容濃度 | 管理濃度 | TWA | STEL | 爆発範囲 |
| 3ppm | 3ppm | 10ppm | -- | -- |