3HM 氨氣氣體檢測(cè)管3HM Ammonia NH3
- 公司名稱(chēng) 上海儀在機(jī)電科技有限公司
- 品牌
- 型號(hào) 3HM
- 產(chǎn)地
- 廠商性質(zhì) 經(jīng)銷(xiāo)商
- 更新時(shí)間 2015/7/1 21:10:00
- 訪(fǎng)問(wèn)次數(shù) 574
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氨氣氣體檢測(cè)管3HM Ammonia NH3
的詳細(xì)介紹
氨氣氣體檢測(cè)管3HM Ammonia NH3
Ammonia No.3HM
NH3
Performance |
MeasuringRange | 0.05 to 1.6% | 1.6 to 3.52% |
Number of Pump Strokes | 1 | 1/2 |
CorrectionFactor | 1 | 2.2 |
SamplingTime | 1 minute per pumpstroke | |
DetectingLimit | 0.01% (n=1) | |
ColorChange | Pink → Yellow | |
ReactionPrinciple | 2NH3 + H2SO4 → (NH4)2SO42NH3 + H2SO4 → (NH4)2SO4 | |
Coefficient ofVariation | 10% (for0.05 to 0.4 %), 5% (for 0.4 to 1.6 ppm) | |
ShelfLife | 3Years | |
Correctionsfor temperature & humidity | Unnecessary | |
Store the tubes at cool and darkplace. |
Possible coexisting substances and theirinterferences | (NOTE) |
Substance | Concentration | Interference | Change color by itself |
Hydrazine | - | Plus error | Discolor to yellowstain |
Pyridine | - | Plus error | Discolor to yellowstain |
Amines other thanaromatic amines | - | Plus error | Discolor to yellowstain |
Calibration gasgeneration | Diffusion tubemethod |
TLV-TWA | TLV-S | Explosive range |
25ppm | 35ppm | 15 to 28% |