精品国产天线2019,色综合久久无码五十路人妻,亚洲熟悉妇女XXX妇女AV,亚洲H在线播放在线观看H

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>156S氟化氫HF氣體檢測管156S HYDROGEN FLUORIDE 0.17-30ppm

氟化氫HF氣體檢測管156S HYDROGEN FLUORIDE 0.17-30ppm

簡要描述:

氟化氫HF氣體檢測管156S HYDROGEN FLUORIDE 0.17-30ppm,是一種*的腐蝕劑,有劇毒。它是無色的氣體,但是在空氣中,只要超過3ppm就會產(chǎn)生刺激的味道。八小時日時量平均容許濃度(TLV):3ppm,短時間時量平均容許濃度(S):6ppm,呼吸防護:30ppm以下:含防HF 濾罐的動力型空氣凈化式或全面型化學(xué)濾罐式呼吸防護具、含防HF 濾罐的防毒面罩、全面型自攜式或供氣式呼吸防護具

更新時間:2025-03-10

在線留言
氟化氫HF氣體檢測管156S HYDROGEN FLUORIDE 0.17-30ppm

氟化氫HF氣體檢測管156S HYDROGEN FLUORIDE 0.17-30ppm

Tube 56S

1. PERFORMANCE
1) Measuring range :0.5-30 ppm 0.25-15 ppm
Number of pump strokes 3(300ml) 6(600ml)
2) Sampling time :1 minute/1 pump stroke
3) Detectable limit :0.2 ppm(300ml)
4) Shelf life :3 years
5) Operating temperature :0~40℃
6) Temperature compensation :Necessary(See "TEMPERATURE CORRECTION TABLE")
7) Reading :Direct reading from the scale calibrated by 3 pump strokes
8) Colour change :Greenish yellow→Pink
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:10% RSD-high:10%
3. CHEMICAL REACTION
PH indicator is discoloured by Hydrogen fluoride.
4. CALIBRATION OF THE TUBE
PERMEATION TUBE METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
1
0.5
5
10
15
20
25
30
300ml
ppm

????
156S HYDROGEN FLUORIDE
Substance Interference Coexistence
Chlorine FIG.1 Similar stain is produced. Higher readings are given.
Hydrogen chloride FIG.2 〃〃
(NOTE)
1)This detector tube is affected by ambient temperature and humidity,therefore, it is necessary to compensate
the reading of gas detector tube with the following equation and correction coefficient table.
Actual concentration=Reading Value×Correction Coefficient
2)In case of 6 pump strokes, following formula is available for the actual concentration.
Actual concentration=1/2×Temp./R.H. corrected value
0
30
40
20
10
Chlorine〔ppm〕?
FIG.1 Influence of Chlorine
Hydrogen fluorine
indicating value 〔ppm〕
2 4 6 8 10 0
30
40
20
10
Hydrogen chloride〔ppm〕?
FIG.2 Influence of Hydrogen chloride
Hydrogen fluorine
indicating value 〔ppm〕
10 20 30
TEMP./R.H.CORRECTION COEFFICIENT TABLE
Relative Temperature
Humidity 0℃ 10℃ 20℃ 30℃ 40℃
(%) (32°F) (50°F) (68°F) (86°F) (104°F)
30 0.9 0.7 0.6 0.55 0.5
40 1.6 1.0 0.8 0.65 0.6
50 2.6 1.3 1.0 0.7 0.7
60 - 2.2 1.5 1.1 0.8
70 - - 2.7 1.6 0.9
80 - - - 2.9 1.1

久久久久久久97| WWW色情成人免费视频软件| 国产XXX农村乱另类| 欧美黑人添添高潮a片视频 | 欧美乱码一二三四区| 精品国产v无码大片在线观看| 下载可以看免费视频的软件| 免费无码av一区二区三区| 亚洲乱亚洲乱妇24p| 99精品久久久中文字幕| 国产精品无码翘臀在线观看| 囯产极品美女高潮无套久久久| 亚洲国产精品久久久久秋霞影院| 亚洲AV色香蕉一区二区三区蜜桃 | 国产精品美女久久久久AV爽| 久久无码人妻一区二区三区午夜| 国产精品久久久久一区二区三区| 国产片和外国大片| 亚洲成A人V欧美综合天堂麻豆| 爆乳熟妇一区二区三区| 99久久综合狠狠综合久久| 97精品国产一区二区三区| 欧美牲交a欧美在线| 国产精品一线二线三线有什么区别| 欧美成人精品第一区二区三区| 女人与公拘交酡免费网站| 免费无码又色又爽的视频软件| 国产人妻精品无码av在线| 狠狠88综合久久久久综合网 | 少妇高潮毛片免费看a片| 久久精品熟女亚洲av麻豆| 一本精品中文字幕在线| 欧美午夜一区二区福利视频| 最近免费观看高清韩国日本大全| 亚洲性视频| 内射人妻无码色av麻豆| 国产精品美女久久久久久| 久久人人爽人人爽人人片| 国产成人午夜精品久久久久久 | 亚洲AV无码乱码国产精品久久| 欧美日本精品一区二区三区 |