免费无码成人AV电影在线播放,精品露脸国产偷人在视频,国产成人免费视频,少妇高潮a片无套内谢麻豆传

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>137U氫氣H2氣體檢測管137U HYDROGEN 0.05-0.8%

氫氣H2氣體檢測管137U HYDROGEN 0.05-0.8%

簡要描述:

氫氣H2氣體檢測管137U HYDROGEN 0.05-0.8%,專業(yè)生產(chǎn)石油化工煤炭分析儀器.我公司提供各規(guī)格硫化氫,氯化氫,氨氣,二氧化硫,一氧化碳,二氧化碳檢測管!品種齊全,價(jià)格公道,歡迎咨詢!為您提供氣體檢測管幫您設(shè)計(jì)氣體分析解決方案.

更新時(shí)間:2025-01-15

在線留言
氫氣H2氣體檢測管137U HYDROGEN 0.05-0.8%

氫氣H2氣體檢測管137U HYDROGEN 0.05-0.8%

Tube 37U
1. PERFORMANCE
1) Measuring range :0.05-0.8%
Number of pump strokes 1/2(50ml)
2) Sampling time :0.5minutes/1/2 pump stroke
3) Detectable limit :0.03%
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 1 /2 pump strokes
8) Colour change :Yellow→Green
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:10% RSD-high:10%
3. CHEMICAL REACTION
By reacting with Oxygen in Atomsphere, water vapour is produced. This Water vapour reacts with Magnesium
perchlorate and PH indicator is discoloured.
H2+O2→H2O
H2O+Mg(CIO4)2→Mg(CIO4)2?H2O
4. CALIBRATION OF THE TUBE
STANDARD GAS CYLINDER METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
????
????
????
GAS ???? To pump
0.80
0.70
0.60
0.50
0.40
0.30
0.20
0.15
0.10
0.05
50ml
%
137U HYDROGEN
Substance % Interference ppm Coexistence
Ethanol FIG.1 0.25 Similar stain is produced. 0.4% Higher readings are given.
Carbon monoxide Tafhfeec atecdc.urate readings are not 500 Lower readings are given.
6.SPECIAL NOTE
1)The tube will not respond in the absence of oxygen.
2)When the concentration of Hydrogen is 12 to 16%, pretreat reagent gives a heat but is not dangerous for use
in hazardous area.
3)When the concentration of Hydrogen is over 40%, the reading value may be indicated below 0.8%.In this
case, the bottom of the discoloured layer becomes dark purple. In order to make sure that the concentration is
extremely high such as 40%, measure the gas concentration with connecting 2 tubes. If both tubes are
discoloured to green, extremely high concentration Hydrogen exists.
0
0.4
0.5
0.3
0.2
0.1
Ethanol〔%〕?
FIG.1 Influence of Ethanol
Hydrogen indicating value 〔%〕
0.5 1.0
Coexistence
Interference
TEMPERATURE CORRECTION TABLE
Scale True Concentration (%)
Readings 0℃ 5℃ 10℃ 15℃ 20℃ 25℃ 30℃ 35℃ 40℃
(%) (32°F) (41°F) (50°F) (59°F) (68°F) (77°F) (86°F) (95°F) (104°F)
0.8 - - - - 0.8 0.68 0.58 0.51 0.45
0.7 - - - 1.00 0.7 0.60 0.52 0.45 0.40
0.6 - - 1.00 0.80 0.6 0.52 0.44 0.39 0.35
0.5 - - 0.80 0.65 0.5 0.44 0.37 0.33 0.30
0.4 - - 0.62 0.51 0.4 0.35 0.30 0.27 0.25
0.3 - 0.70 0.46 0.37 0.3 0.28 0.23 0.21 0.19
0.2 0.65 0.47 0.30 0.25 0.2 0.18 0.16 0.14 0.13
0.15 0.46 0.34 0.22 0.19 0.15 0.13 0.12 0.11 0.10
0.1 0.28 0.21 0.15 0.12 0.1 0.09 0.08 0.08 0.07
0.06 0.13 0.10 0.07 0.06 0.05 0.05 0.05 0.05 0.05

中文无码精品a∨在线| 18video性欧美19sex| 亚洲av午夜成人片精品网站| 亚洲 欧美 日韩 卡通 另类| 久久婷婷五月综合97色直播| 最近中文字幕大全| 日本爽快片18禁免费看| 国语自产一区怡和院| 加勒比色综合久久久久久久久| 久久久久久久亚洲AV无码| 黑人玩弄漂亮少妇高潮大叫 | 无码人妻黑人中文字幕| 国产精品久久久久无码av色戒 | 国产精品人妻一区夜夜爱| BABES性欧美| 久久久九色综合亚洲成色777| 亚洲精品久久无码老熟妇| 久久久久久精品免费免费999 | 国内精品久久久久久99蜜桃| 国产激情久久久久影院老熟女| h纯肉无码樱花动漫在线观看软件| 歪歪爽蜜臀av久久精品人人槡| 亚洲色成人网站www永久四虎| 豆国产96在线 | 亚洲| 无码国精品一区二区免费| 亚洲AV无码久久久久久精品同性 | 亚洲熟女少妇一区二区三区 | 免费a级毛片做爰片在线| 久久人人爽人人爽人人AV东京热| 免费AV网站| 欧美日韩国产精品| 精品无码久久久久久久动漫| 久久人爽人人爽人人片AV| 亚洲AV无码成人专区| 国产精品无码AV片在线观看播| 久久久久亚洲AV无码专区喷水 | bbbbb妓女毛片免费a片| 国产av日韩a∨亚洲av电影| 亚洲第一第二第三第四第五第六 | 无码人妻一区二区三区色欲av| 亚洲精品TV久久久久久久久|