产品列表PRODUCTS LIST

首页>产品中心>日本光明北川式气体检测管>气体快速检测管>171SC甲醛HCHO气体测毒管171SC FORMALDEHYDE 0.05-4.0ppm

甲醛HCHO气体测毒管171SC FORMALDEHYDE 0.05-4.0ppm

简要描述:

甲醛HCHO气体测毒管171SC FORMALDEHYDE 0.05-4.0ppm,新装修的房子里一般甲醛都会超标,只要在新房里放上一两盆吊兰,甲醛就全部都会被吸收。家庭去除甲醛的办法在室内甲醛含量超过国家标准1倍以上时,就需要从根源上去除甲醛了,目前Z有效的方法是植物草本喷剂去除甲醛。光触媒、植物去除、甲醛清除剂、空气净化器、纯中草药喷剂分解法。甲醛去除是一个缓慢的过程(家庭装修中的甲醛释放周朝一般是3到15年)。人体接触可以清水冲洗。工作环境中有甲醛可以戴防毒口罩。家庭装修尽量不要使用太多

更新时间:2017-08-25

发邮件给我们:554328895@qq.com

分享到: 1
在线留言
甲醛HCHO气体测毒管171SC FORMALDEHYDE 0.05-4.0ppm

甲醛HCHO气体测毒管171SC FORMALDEHYDE 0.05-4.0ppm

Tube No.171SC

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

联系人
在线客服
用心服务 成就你我