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

氧氣O2氣體檢測(cè)管159SA OXYGEN 2-24%

簡(jiǎn)要描述:

氧氣O2氣體檢測(cè)管159SA OXYGEN 2-24%,體外缺氧:主要是因?yàn)橥獠吭蛟斐傻娜毖?。人處在一個(gè)缺少氧氣的環(huán)境里,如陰天氣壓低,高原地區(qū),環(huán)境污染地區(qū)以及寫(xiě)字樓、商場(chǎng)、地下室等都容易造成體外缺氧。體內(nèi)缺氧:是指人體自身的原因,導(dǎo)致吸入氧氣的不足,與一些老年病、工作節(jié)奏快等原因有關(guān)。如呼吸系統(tǒng)疾?。夤苎住⑾?;血液循環(huán)不好(各種心臟疾病,腦供血不足、腦梗、脈管炎、靜脈曲張等)。長(zhǎng)期處于體內(nèi)缺氧狀態(tài),人體各個(gè)組織供氧不足,加速了身體的衰竭,甚至引發(fā)中風(fēng)等意外,直接威脅到生命的安全。

更新時(shí)間:2025-03-11

在線留言
氧氣O2氣體檢測(cè)管159SA OXYGEN 2-24%

氧氣O2氣體檢測(cè)管159SA OXYGEN 2-24%

1. PERFORMANCE
1) Measuring range :2-24%
Number of pump strokes 1/2(50ml)
2) Sampling time :2 minutes/1/2 pump stroke
3) Shelf life :2 years
4) Operating temperature :0~40℃
5) Reading :Direct reading from the scale calibrated by 1 /2 pump stroke
6) Colour change :White→Brown
2. RELATIVE STANDARD DEVIATION
RSD-low:5% RSD-mid.:5% RSD-high:5%
3. CHEMICAL REACTION
Oxygen reacts with alkaline pyrogallol.
4. CALIBRATION OF THE TUBE
STANDARD GAS CYLINDER METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
2
6
9
12
15
18
21
24
%
50ml
GAS To pump
TEMPERA TURE
INDICATOR
Tube No.
159SA,SB OXYGEN
Substance Interference ppm Coexistence
Hydrogen sulphide 2% Higher readings are given.
Nitrogen dioxide 2% 〃
Sulphur dioxide Similar stain is produced. 2% 〃
Carbon dioxide 〃5% 〃
6.NOTE
1)Coexistence of more than 5%of Carbon dioxide(CO2)gives higher reading and the reading from the scale
should be corrected with the following correction table.
2)The 59SA and SB tubes are necessary to heat the part of the temperature indicator until the indicator
discolours from Red to Purple first. In case of 59SA , it is necessary to use direct flame such as a match
or lighter to heat it up a non-hazardous area.59SB consists of a thin aluminum belt rolled on the indicator
and chemical liquid in a small bottle. When the liquid is dropped on the aluminum fully, a chemical reaction
occurs with generating smoke and temperature comes high. There, the 59SB is possible to use in a
hazardous area.
CO2 CORRECTION TABLE
Scale True Concentration (%)
Readings CO2 CO2 CO2 CO2
(%) 5% 10% 15% 20%
2 2.0 - - -
6 6.0 2.5 - -
9 9.0 6.4 - -
12 12.0 10.0 7.0 6.0
15 15.0 12.8 10.0 7.8
18 18.0 16.0 14.0 12.1
21 21.0 19.0 16.6 14.4
24 24.0 21.2 19.6 17.9

法国精品性xxxx| 国产精品亚洲一区二区无码| 亚洲午夜成人精品无码色欲| 精品久久人妻AV中文字幕| 国产精品色欲AV亚洲三区小说 | 国产日韩欧美在线视频一本到| 一本大道熟女人妻中文字幕在线| 国产成人精品亚洲777人妖 | 亚洲AV日韩AV无码| 亚洲精品日韩一区二区电影| 亚洲AV无码国产精品色在线看| 午夜香吻免费观看视频在线播放 | 亚洲熟妇无码av在线播放| 国产成人一区二区三区影| 99热这里有精品| 久久久久亚洲AV无码A片| 久久久久久精品免费自在自线 | 五月AV综合AV国产AV| 天天爽夜夜爽人人爽一区二区| 与上司出轨的人妻| 人与嘼AV免费| 99久久国产精品免费一区二区 | 99久久99久久免费精品小说| 国产精品色欲AV亚洲三区 | 猫咪亚洲精品无码MV在线观看| 欧洲熟妇色XXXX欧美老妇多毛| 欧美性xxxxx极品老少| 永久在线观看免费视频| 朋友出差人妻半推半就滑进| 麻豆国产精品番甜甜七夕| 国产成人精品国内自产拍| 漂亮人妻洗澡被公强 日日躁| 久久精品国产96精品亚洲| 欧亚乱熟女一区二区在线| 凹凸国产熟女精品视频app| 女人与拘做受全过程免费视频 | 人妻女教师耻辱の教室| 精品人妻无码一区二区三区淑枝| 美妙人妻系列100部| 人妻 丝袜美腿 中文字幕| 亚洲av永久无码精品三区在线 |