171SC 甲醛HCHO气体测毒管171SC FORMALDEHYDE 0.05-4.0ppm
- 公司名称 上海境宣实业有限公司
- 品牌
- 型号 171SC
- 产地 日本
- 厂商性质 代理商
- 更新时间 2025/5/12 18:42:35
- 访问次数 1826
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甲醛HCHO气体测毒管171SC FORMALDEHYDE 0.05-4.0ppm
Tube 71SC
1. PERFORMANCE
1) Measuring range :0.1-4.0 ppm 0.05-2.0 ppm
Number of pump strokes 5(500mr) 10(1000ml)
2) Sampling time :5 minutes/5 pump strokes
3) Detectable limit :0.03 ppm(1000ml)
4) Shelf life :1 year (Necessary to store in a refrigerated place ; 0~10℃)
5) Operating temperature :10~40℃
6) Temperature compensation :Necessary(See "TEMPERATURE CORRECTION TABLE")
7) Reading :Direct reading from the scale calibrated by 5 pump strokes
8) Colour change :Yellow→Pink
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:10% RSD-high:10%
3. CHEMICAL REACTION
By reaction with Hydroxylamine phosphate acid is liberated and PH indicator is discoloured.
HCHO+(NH3OH)3・H3PO4→H3PO4+HCH=NOH+H2O
4. CALIBRATION OF THE TUBE
COLOURIMETRY METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
4.0
3.0
2.0
1.0
0.1
0.5
0.3
500ml
ppm
(White)
DEHUMIDIFIER
171SC FORMALDEHYDE
Substance ppm Interference ppm Coexistence
Ammonia
The accuracy of readings is 10 Lower readings are given. Inlet
not affected. side is faded the discoloured layer.
Higher readings are given. The
Nitrogen dioxide 3 Similar stain is produced. 3 top of discoloured layer becomes
unclear.
Acetaldehyde 〃Higher readings are given.
Toluene
The accuracy of readings is
not affected.
TEMPERATURE CORRECTION TABLE
Tube Corrected Concentration (ppm)
Readings 10℃ 20℃ 30℃ 40℃
(ppm) (50°F) (68°F) (86°F) (104°F)
4.0 6.4 4.0 2.4 1.6
3.5 5.6 3.5 2.1 1.4
3.0 4.8 3.0 1.8 1.2
2.5 4.0 2.5 1.5 1.0
2.0 3.2 2.0 1.2 0.8
1.5 2.4 1.5 0.9 0.6
1.0 1.6 1.0 0.6 0.4
0.5 0.8 0.5 0.3 0.2
0.3 0.5 0.3 0.18 0.12
0.1 0.16 0.1 0.06 0.04
(NOTE)
In case of 10 pump strokes, following formula is available for the actual concentration.
Actual concentration = 1/2 × Tmperature corrected value
相关分类
- 烟气分析仪
- 甲醛分析仪
- 粉尘测定仪/粉尘仪
- 红外线气体分析仪
- 多组分气体分析仪
- 一氧化碳分析仪
- 二氧化碳分析仪
- 氨气分析仪/氨分析仪
- 汽车尾气分析仪
- 臭氧检测仪
- 烟气/大气重金属在线分析仪
- 高纯气/特气分析系统
- VOC检测仪/TVOC检测仪
- 臭氧分析仪(O3)
- 热导式气体分析仪
- CO、SO2、HCL、NOX、空气检测仪
- PM2.5/PM10/PM1/TSP大气颗粒物监测仪
- 甲烷/非甲烷烃检测仪
- 氮氧化物分析仪(NOX)
- 油烟检测仪
- 恶臭测定仪
- 粉尘采样器
- 气体采样器/大气采样器
- 粒子计数器
- 烟尘采样器、烟气采样器
- 颗粒物采样器
- 零气发生器
- TSP采样器
- 空气微生物采样器
- PM2.5采样器
- PM10采样器
- 粗、细颗粒物双道采样器
- 二噁英采样仪/二噁英采样器
- 酸雨采样器
- 激光雷达
- 太阳光度计
- 尘量分析仪
- 气体稀释仪
- 烟度计
- 气溶胶
- 气体在线自动监测系统
- 灰霾监测系统
- 空气质量自动监测系统
- 烟气汞连续监测系统
- 气体报警器/探测器/传感器
- 环境污染事故应急监测仪器
- 温室气体监测仪
- 苏玛罐采样器
- 扬尘监测仪
- 降水/降尘自动采样监测仪
- 烟气汞采样器
- 氨逃逸在线监测系统
- 粒径谱仪
- 其它气体检测
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