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>120UH硫化氫H2S氣體觀測管120UH HYDROGEN SULPHIDE 2-20%

硫化氫H2S氣體觀測管120UH HYDROGEN SULPHIDE 2-20%

簡要描述:

硫化氫H2S氣體觀測管120UH HYDROGEN SULPHIDE 2-20%,為您提供硫化氫檢測管的詳細(xì)介紹和價(jià)格,我公司為提高產(chǎn)品質(zhì)量投資上百萬元建立了檢測管自動(dòng)化生產(chǎn)線,引進(jìn)*的標(biāo)準(zhǔn)氣配置裝置,建立了嚴(yán)格的檢測管質(zhì)量保證體系,并取得了計(jì)量器具生產(chǎn)許可證。日本光明理化學(xué)工業(yè)株式會(huì)社在氣體分析領(lǐng)域開拓了六十年,形成了于世的“北川"式氣體快速分析法,“北川"的歷史就是檢測管的歷史。

更新時(shí)間:2025-01-15

在線留言
硫化氫H2S氣體觀測管120UH HYDROGEN SULPHIDE 2-20%

硫化氫H2S氣體觀測管120UH HYDROGEN SULPHIDE 2-20%

Tube 20UH
1. PERFORMANCE
1) Measuring range :2-20%
Number of pump strokes 1/2(50ml)
2) Sampling time :1 minute/1/ 2 pump stroke
3) Detectable limit :0.05%
4) Shelf life :3 years
5) Operating temperature :0~40℃
6) Reading :Direct reading from the scale calibrated by 1 /2 pump stroke
7) Colour change :Pale blue→Black
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:5% RSD-high:5%
3. CHEMICAL REACTION
By reacting with Cupric sulphate(II), Cupric sulphide is produced.
H2S+CuSO4→CuS
4. CALIBRATION OF THE TUBE
STANDARD GAS CYLINDER METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
20
18
16
14
12
10
8
6
4
2
50ml
%
????
????
????
????
????
????
120UH HYDROGEN SULPHIDE
(NOTE)
1. Where the discolouration is over the scale, non-reacted Hydrogen sulphide remains in the pump. This residual
Hydrogen sulphide is not exhausted even if the pump handle is pushed back, and it still remains in the pump.
When the handle is pulled next, it is exhausted toward the operator from the stopper side of the pump.
Accordingly, air purging of the pump inside by pulling/pushing the handle several times should be done in
fresh air where there is not Hydrogen sulphide, because Hydrogen sulphide is very toxic. During the air
purging, protection apparatus such as a gas mask should be worn.
2. Maximum sampling volume of the gas shall be approximay 70mr.
Substance Interference Coexistence
Sulphur dioxide FIG.1 The accuracy of readings is not affected. Lower readings are given.
Carbon dioxide The accuracy of readings is
not affected.
0 2 4
20
Sulphur dioxide〔%〕?
FIG.1 Influence of Sulphur dioxide

成熟丰满熟妇高潮xxxxx视频 | 99久久国产宗和精品1上映| 国产绳艺sm高潮调教失禁vk| 无码人妻丰满熟妇区五十路百度 | 中文字幕乱妇无码av在线| 国产精品久久久久9999吃药| 善良的嫂子在线观看| 日本三级吃奶头添泬无码苍井空 | 成人h动漫精品一区二区| 2012中文字幕高清在线中文字幕| 国产日产欧产美| 久久久99久久久国产自输拍| 免费男人下部进女人下部视频| 亚洲毛片不卡av在线播放| 国产人妖乱国产精品人妖| 国产精品女同久久久久电影院| 国产又色又爽又黄又免费| 久久久久欧美精品| 人妻中出受孕 中文字幕在线| 国内精品一区二区三区 | 国产95在线 | 欧美| 精品国产免费一区二区三区| 人人人妻人人澡人人爽欧美一区| 亚洲人成电影在线观看青青| 久久午夜夜伦鲁鲁片无码免费| 99久久国产精品免费热7788| 亚洲人成中文字幕在线观看| 日本无码色情三级播放| 国产裸体舞一区二区三区| 99久久精品免费看国产| 亚洲成av人影片在线观看| 亚洲熟女乱综合一区二区| 色婷婷久久综合中文久久蜜桃av| 国产青草视频在线观看| 高清中文字幕在线a片| 中文字幕乱码亚洲精品一区| 日本aaaa片毛片免费观| 午夜男女爽爽影院a片免费| 精品久久久久久无码人妻蜜桃| 亚洲精华国产精华精华液好用吗| 国产人妖乱国产精品人妖|