久久久久久精品成人免费图片,(原创)露脸自拍[62p],免费60分钟床,国内最真实的xxxx人伦

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,價格公道,歡迎咨詢!為您提供氣體檢測管幫您設(shè)計氣體分析解決方案.

更新時間:2025-01-08

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

老同学3免费完整版在线观看| 大学生第一次破女处a片| chinese熟女老太hd| 国产精品高清一区二区三区人妖| 成人免费无遮挡无码黄漫视频 | 学长早晨含巨龙起床h男男| 日韩毛片人妻久久蜜桃传媒| 被粗汉h玩松了尿进去| 激情都市亚洲一区二区| 亚洲暴爽av天天爽日日碰 | 久久久久无码国产精品一区| 亚洲熟妇少妇任你躁在线观看无码 | 天干天干天夜夜爽啪啪免费网站| 性20分钟一次| 寡妇大j8又粗又大| 老bwbwbwbwbwbwbw| av无码专区| 97精品超碰一区二区三区| 免费a级毛片无码无遮挡| 你的奶好大让老子摸摸的说说| 69国产精品成人无码视频| 性 色 国产 视频| 国产精品久久高潮呻吟无码| 欧美巨大粗爽av在线观看| 99re久久精品国产| h高潮嗯啊娇喘抽搐视频a片小说| 色欲人妻综合aaaaaaaa网| 天天爽夜夜爽夜夜爽精品视频| 真人做爰高潮全过程毛片| 免费无码又爽又刺激a片| 亚洲色无码a片一区二区潘甜甜| 无码专区aaaaaa免费视频| 拍裸戏时被c了h| 高潮捣出白浆嗯啊哭叫h漫画| 播放灌醉水嫩大学生国内精品| 亚洲av日韩av无码| 永久免费观看不收费的软件| 好大好硬好爽快点我要| 国产成人精品无码免费视频| 亚洲精品无码永久中文字幕| 久久综合99re88久久爱|