亚洲中文字幕啪啪一区二区,看亚洲欧洲在线视频,国产福利不卡在线视频,欧美日韩一区二区人妻

產(chǎn)品列表PRODUCTS LIST

首頁>產(chǎn)品中心>日本光明北川式氣體檢測管>氣體快速檢測管>171SC甲醛HCHO氣體測毒管171SC FORMALDEHYDE 0.05-4.0ppm

甲醛HCHO氣體測毒管171SC FORMALDEHYDE 0.05-4.0ppm

簡要描述:

甲醛HCHO氣體測毒管171SC FORMALDEHYDE 0.05-4.0ppm,新裝修的房子里一般甲醛都會超標(biāo),只要在新房里放上一兩盆吊蘭,甲醛就全部都會被吸收。家庭去除甲醛的辦法在室內(nèi)甲醛含量超過國家標(biāo)準(zhǔn)1倍以上時(shí),就需要從根源上去除甲醛了,目前Z有效的方法是植物草本噴劑去除甲醛。光觸媒、植物去除、甲醛清除劑、空氣凈化器、純中草藥噴劑分解法。甲醛去除是一個(gè)緩慢的過程(家庭裝修中的甲醛釋放周朝一般是3到15年)。人體接觸可以清水沖洗。工作環(huán)境中有甲醛可以戴防毒口罩。家庭裝修盡量不要使用太多

更新時(shí)間:2025-01-01

發(fā)郵件給我們:554328895@qq.com

分享到: 1
在線留言
甲醛HCHO氣體測毒管171SC FORMALDEHYDE 0.05-4.0ppm

甲醛HCHO氣體測毒管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

 
久久久久久女人精品毛片| 久久久久亚洲av毛片大| 欧美做爰猛烈大尺度| 91狠狠人妻久久久久久综合| 日本色一区二区三区四区五区| 国产一区二区日本在线观看| 豆国产98在线观看亚洲| 2021久久国自产拍精品| 久久久久久精品免费看| 中文字幕日韩在线高清欧美| 欧美一区二区亚洲a一区二区| 91国产精品免费观看| 国产精品欧美大片在线观看| 欧美高清性做爰销魂在线| 国产高新无码在线观看| 97在线视频播放免费观看不卡| 国产爽的冒白浆的视频| 国产精品熟女视频网站| 精品国产片亚洲一区| 国产精品人成在线观看不卡| 国产亚洲视频中文字幕97精品| 日韩一区二区合集影院在线观看| 精品日韩欧美一区在线播放| 亚洲国产精品午夜在线| 久久久成人国产精品麻豆| 少妇人妻偷人精品无码视频| 久久久久久女人精品毛片| 欧美日本一道本一区二区三区| 欧美大片在线免费看精品一区| 国产精品日韩主播无套| 色欲香天天综合免费区一区二| 久久久久久国产综合精品| 超碰人人在线免费观看| 亚洲综合精品欧美日韩一区二区三区91| 亚洲精品夜夜夜妓女网| 亚洲1区2区3区av| 日日摸夜夜摸狠狠摸婷婷| 动漫无码AV在线免费观看| 99国产精品视频在线| 日本在线观看黄视频| 国产精品青青青高清在线观看|