公司名称:气体检测仪器网|北京圣达骏业科技有限公司
所在地:北京丰台
发布时间:2011-11-04
联系人:董小姐
产品简介
氯仿气体检测管NO.137LL 检测范围0.3-4.5ppm,稀有气体检测管,三氯甲烷为氯仿的学名,又称“哥罗芳"、“三氯甲烷"和“三氯化碳",分子量119.38。
产品详情
氯仿气体检测管NO.137LL 检测范围0.3-4.5ppm
简单介绍
氯仿气体检测管NO.137LL 检测范围0.3-4.5ppm,氯仿气体检测管NO.137LL 检测范围0.3-4.5ppm,稀有气体检测管,三氯甲烷为氯仿的学名,又称“哥罗芳"、“三氯甲烷"和“三氯化碳",分子量119.38。氯仿一名为英语Chloroform的半意半音译;哥罗芳为音译。常温下为无色透明的重质液体,极易挥发,味辛甜而有特殊芳香气味。环境危害: 对环境有危害,对水体可造成污染
氯仿气体检测管NO.137LL 检测范围0.3-4.5ppm的详细介绍
氯仿气体检测管NO.137LL 检测范围0.3-4.5ppm
氯仿气体检测管NO.137LL 检测范围0.3-4.5ppm
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 + 3.3'-DIMETHYLNAPHTHIDINE ⅹ reaction product |
Coefficient of Variation |
10% (for 0.3 to 1.5 ppm), 5% (for 1.5 to 4.5 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 (NOTE)
Substance |
Concentration |
Interference |
Change colour by itself to |
Chlorine |
℃6ppm |
+ |
Pale purple |
Bromine |
″4.5ppm |
No |
No |
Iodine |
″4.5ppm |
No |
No |
1,1,1-trichloroethane |
|
+ |
Pale purple |
trichloroethylene |
|
+ |
Pale purple |
Calibration gas generation |
Diffusion tube method |
仕様
目盛範囲: |
0.3~4.5ppm〔基準n=4〕 |
測定範囲: |
0.3~4.5ppm〔基準n=4〕 |
吸引回数〔n〕: |
4〔基準〕 |
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
塩素 |
2倍以上 |
+誤差 |
淡紫色に変色 |
1,1,1-トリクロロエタン |
|
+誤差 |
淡紫色に変色 |
トリクロロエチレン |
|
+誤差 |
淡紫色に変色 |