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

亚洲ΑV久久久噜噜噜噜噜| 无码精品一区二区三区免费视频| 亚洲精品一区二区久久| 日本一本免费一区二区| 性色av蜜臀av人妻无码| 一区二区狠狠色丁香久久婷婷| 国产免费麻传媒精品国产AV| 老汉精品免费av在线播放| 久久久久久精品一区二区三区日本| 久久精品亚洲av无码乱码三区| 久久久久国产精品无套专区| 亚洲成av人片天堂网| 日本成本人片无码免费视频网站| 亚洲不卡中文字幕无码| 国产亚洲精品久久久久久久久| 三年片在线观看免费观看大全| 人妻少妇精品专区性色av| 国产精品久久久久久久久爆乳 | 性欧美XXXXX乱极品少妇| 蜜臀AV性久久久久蜜臀AⅤ| 特级做a爰片久久毛片a片喷水| 日本公与熄乱理免费观看| 99精品人妻无码专区在线视频区| 性欧美xxxxx老少交| 中国vodafonewifi精品网站| 国产精品扒开腿做爽爽爽| 中文人妻AV久久人妻水密桃| 免费精品一区二区三区第35二区| 日本一区二区三区免费更新不卡| 一人观看的电影免费观看| 国产深夜男女无套内射| 激情97综合亚洲色婷婷五| 亚洲色偷偷综合亚洲AV伊人 | 国产av无码专区亚洲a∨毛片| 日本真人添下面视频免费| 日本精品无码特级毛片| 国产日产欧洲无码视频精品| 精品夜夜澡人妻无码AV蜜桃| 国产性色强伦免费视频| 五月丁香综合激情六月久久| 免费观看又色又爽又黄的|