国产在线观看免费av电影,黄到下面流水的爽文很污的情话,日韩在线免费观看第一页,国产三级在线观看免费网站

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強的元素,也是很強的氧化劑。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。

更新時間:2025-09-03

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

国产三级无码黄| 欧洲 亚洲 日本 精品| 久久无码电影免费黄网站| 老妇做爰xxxxhd老少配| 一道本高清一区二区av| 亚洲色欲色欲www在线成人网 | 亚洲精品岛国片在线观看| 阿娇张开两腿实干13分钟图片| 人妻少妇精品久久| 性一交一乱一色一视频| 久久色综合久久色综合网| 国语成本人免费aⅤ无码| 国产精品偷窥自拍视频区| 亚洲一区二区三区av天堂| 国产在线观看不卡的视频| 高清家庭影院| 青青草国拍2018| 无码熟妇人妻AV在线影片免费| 日本aa免费电影一区二区| 免费高清视频| 国产欧美日韩各类一区二区| 久久久久观看99水蜜桃| 亚洲男人精品青春的天堂| 亚洲国产美女高潮久久久| 三a级做爰片免费观看| 亚洲精品久久久久久久字幕| 久久亚洲福利| 日韩电影a 不卡一区二区| 国产精品久久精品肉蒲团| 欧美人妻秘书办公室精品| 国产旡码高清一区二区三区| 大鸡吧骚穴视频在线观看| 亚洲欧美另类离制服丝袜| 亚洲欧美日韩国产第七部| 国产亚洲品久久久久久久| 国产精品91av一区二区| 国产精品射射射福利一区| 人妻办公室被强奷hd| 少妇老师寂寞高潮免费a片| 国产精品亚洲ΑV天堂无码| 亚洲成色在线综合网站|