丰满岳乱妇在线观看中字无码,漂亮的保姆5在线观看中文,把我绑在床头上夹奶头视频,免费人做人爱完整版视频

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介紹和價格,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化生產(chǎn)線,引進*的標(biāo)準(zhǔn)氣配置裝置,建立了嚴格的檢測管質(zhì)量保證體系,并取得了計量器具生產(chǎn)許可證。日本光明理化學(xué)工業(yè)株式會社在氣體分析領(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。

更新時間:2025-12-07

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

亚洲色欲色欲www| 欧美丰满熟妇BBBBBB百度| 永久免费无码AV在线网站| 久久99精品国产99久久| 亚洲另类欧美综合久久图片区| 最近中文字幕视频高清| 国产精品久久久久精品日日| 女邻居丰满的奶水在线观看| 黑人玩弄漂亮少妇高潮大叫| 国产真实夫妇视频| 亚洲精品国产偷五月天丁香| 久久精品麻豆日日躁夜夜躁| 蜜桃人妻无码av天堂三区| 狠狠躁18三区二区一区| 久久久久成人精品无码| 最近的2019中文字幕国语在线| 美女脱裙打光屁屁视频| 日本熟妇50岁hd| 国产精品女同久久久久电影院| 最近的2019中文字幕国语在线| 3d动漫精品啪啪一区二区免费 | 成人亚洲a片v一区二区三区蜜月 | 欧美粗大无套gay| 色综合久久88色综合天天| 夜精品无码a片一区二区蜜桃 | 日本高清视频在线www色| eeuss影院www在线观看| 插我一区二区在线观看| 高清欧美性猛交xxxx黑人猛交| 柚子视频在线观看播放| 亚洲av成人无码精品网站老司机| 凹厕所xxxxbbbb偷拍视频| 亚洲国产精品18久久久久久| 亚洲日韩精品av成人波多野| 全部免费毛片在线播放| 亚洲欧美日韩综合久久久| 国产精品无码专区| 免费观看mv大片的直播软件| xxoo做爰猛烈动态视频| 无码熟妇人妻av在线网站| 精品国产黑色丝袜高跟鞋|