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

性XXXX欧美老妇胖老大| 色欲久久久天天天综合网精品| 精品国产自在精品国产精| 久久精品国产男包| 嫩草AV久久伊人妇女超级A| 人人添人人妻人人爽夜欢视AV| 国产最好的高清播放机| 免费a级毛片黄a片高清在线播放| 人妻无码av中文系列久久| 国产精品无码一区二区三区免费| 国产精品99久久久久久猫咪| 国产偷v国产偷v亚洲高清| 国产成人精品一区二区三区影院 | 777久久精品一区二区三区无码| 777久久人妻少妇嫩草AV| 免费一对一真人视频app| 亚洲精品v天堂中文字幕| 高清国产av一区二区三区| 精品久久久久久无码人妻热| 欧美日韩国产在线人成| 欧美性生交xxxxx无码| 国产精品乱码久久久久软件| 色偷偷色噜噜狠狠网站久久| 一区二区狠狠色丁香久久婷婷| 国产精品久久久久AV| 免费看美女视频的软件| 久久久久人妻精品区一三寸| 蜜桃av噜噜一区二区三区视频 | 夫の前で痴汉に绝顶人妻国产剧| 欧美FREESEX黑人又粗又大 | 久久无码av三级| 无码精品久久久久久人妻中字| 人妻少妇精品视频一区二区三区| 日韩中文字幕区一区有砖一区 | 免费a级毛片无码视频| 成人无码H免费动漫在线观看| 欧美酷刑sm在线播放| 久久国产精品99久久久久久| 人妻无码| 国产在线观看无遮挡无码AⅤ多人| 久久性爱视频|