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

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

簡要描述:

氟氣HF氣體檢測管156S HYDROGEN FLUORIDE 0.17-30ppm,氟是一種鹵族化學(xué)元素,它的化學(xué)符號是F,它的原子序數(shù)是9。氟是一種腐蝕性的淡黃色雙原子氣體。氟是電負(fù)度Z強(qiáng)的元素,也是很強(qiáng)的氧化劑。在常溫下,它幾乎能和所有的元素化合,并產(chǎn)生大量的熱能, 氟是劇毒性氣體,能刺激眼、皮膚、呼吸道粘膜。由于它立即與水反應(yīng)生成氟化氫,所以在大多數(shù)情況下顯出與氟化氫同樣的毒性。

更新時(shí)間:2025-03-10

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

氟氣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

涩涩av视频一区二区三区| 真人性做爰无遮a片免费 | 国产综合精品| 国产偷V国产偷V国产高清| 国产精品国产三级国产专播 | 亚洲欧美日韩一区二区三区| b站免费版入口| 女人十八毛片A片久久18| 精品成人一区二区三区四区| 精品人妻久久久久久888| 国精品午夜福利视频不卡| 歪歪漫画网免费版在线观看| 久久久久国产精品| 涩涩av视频一区二区三区| 最近中文字幕2019免费版日本| 无码人妻一区二区三区| 久久精品这里热有精品| 精品一区二区三区免费毛片爱| 美女高潮无遮挡免费视频 | 国产97在线 | 日韩| 全免费a级毛片免费看视频| 自拍偷在线精品自拍偷99| 国产白嫩无套视频在线播放蜜桃| 亚洲精品国产偷五月天丁香| 极品少妇XXXX精品少妇偷拍| 国产精品久久久久久一区二区三区 | JIZZ国产精品| 欧美乱大交xxxxx疯狂俱乐部| 亚洲精品一区二区| 丁香色婷婷国产精品视频| 久久久免费精品RE6| 亚洲色无码A片一区二区情欲| bbbbb妓女毛片免费a片| 色婷婷亚洲一区二区三区| 野花香高清视频在线观看免费| 人妻杨丽的无奈献身| 久久精品无码一区二区日韩av| 香港a级毛片经典免费观看| 欧美在线 | 亚洲| 国产午夜精品理论片| 国产女主播喷水视频在线观看|