产品图片	产品名称/型号	产品简单介绍
	硫化物检测管201L Sulphide 201L	硫化物检测管201L Sulphide，Performance Measuring Range 0.002 to 0.02 mg Sampling Time 45 seconds per 1 pomp stroke Detecting Limit 0.0002 mg Colour硫化物检测管价格
	201H硫化物Sulphide 201H硫化物Sulphide	Performance Measuring Range 0.02 to 0.2 mg Sampling Time 45 seconds per 1 pomp stroke Detecting Limit 0.002 mg Colour Change White → Brown Reaction Principle Gus generation tube : Sulphides + H2SO4 → H2SDetector tube : H2S + Pb(CH3COO)2 → PbS Shelf Life 3 Years Corrections for temperature & humidity Unnecessary Coefficient of Variation 5% (for 0.02 to 0.2 mg) Possible coexisting substances and their interferences (NOTE) Substance
	291镍离子检测管 Ni 291镍离子检测管 Ni	Performance Measuring Range (5) to 50 mg/L Sampling Time 3 minutes Detecting Limit 5 mg/L Colour Change White → Red Reaction Principle Ni + Dimethyl glyoxime → Complex compound Shelf Life 3 Years Corrections for temperature & humidity Unnecessary Store the tubes at cool and dark place. Possible coexisting substances and their interferences (NOTE) Substance Concentration Interference Change colour by itself to Zn 20 mg/L - No (1000mg/L) Al 30 mg/L - No (1000mg/L) Co 3 mg/ L + Greenish brown (20
	285锌检测管 Zn 285锌检测管 Zn	Performance Measuring Range 3 to 20 mg/L Sampling Time 3 minutes Detecting Limit 0.5 mg/L Colour Change Pale orange → Reddish purple Reaction Principle Zn + Indicator → Reddish purple complex compound Shelf Life 3 Years Corrections for temperature & humidity Water temperature correction is necessary Store the tubes at cool and dark place. Possible coexisting substances and their interferences (NOTE) Substance Concentration Interference Change colour by itself to CN- 10 mg/L + No (100mg/L) Fe2+ 1
	221L氯化物检知管 Cl- 221L氯化物检知管 Cl-	Performance Measuring Range (25) to 1000 mg/L Sampling Time 3 minutes Detecting Limit 1 mg/L Colour Change Brown → White Reaction Principle 2Cl- + Ag2CrO4 → 2AgCl Shelf Life 3 Years Corrections for temperature & humidity Unnecessary Store the tubes at cool and dark place. Possible coexisting substances and their interferences (NOTE) Substance Concentration Interference Change colour by itself to CN- 1 mg/L + White Br- 10 mg/L + White SCN- 30 mg/L + White Fe2+ 200 mg/L - No (1000 mg/L) Fe3+ 200 m