**气体检测管37LL
价格 |
|
所属行业 |
分析仪 |
厂家/商户所在地 |
上海-上海 |
公司名 |
上海乐丁电子科技有限公司 |
主营产品 |
手动气体采样器GV-100S,快速气体检测管,GASTEC水质检测管,GASTEC发烟管 |
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**气体检测管37LL 检测范围0.3-4.5ppm
**气体检测管37LL 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'-DIM**NAPHTHIDINE 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 coe**sting substances and their interferences (NOTE)
Substance |
Conce**ation |
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 |
trichloro**ene |
|
+ |
Pale purple |
Calibration gas generation |
Diffusion tube method |
T**-TWA |
T**-STEL |
Explosive range |
10 ppm |
- |
- |
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 |
許容濃度 |
管理濃度 |
TWA |
STEL |
爆発範囲 |
3ppm |
3ppm |
10ppm |
-- |
-- |