www.cgongxi.com-国产日产久久高清欧美一区WW,国产在线观看无码免费视频,国产日产久久高清欧美一区WW,国模欢欢炮交啪啪150P

產(chǎn)品列表PRODUCTS LIST

首頁(yè)>產(chǎn)品中心>日本光明北川式氣體檢測管>氣體快速檢測管>113SB異丁烷(CH3)3CH氣體檢測管113SB ISOBUTANE 50-1200ppm

異丁烷(CH3)3CH氣體檢測管113SB ISOBUTANE 50-1200ppm

簡(jiǎn)要描述:

異丁烷(CH3)3CH氣體檢測管113SB ISOBUTANE 50-1200ppm,2-甲基丙烷 健康危害: 具有弱刺激和麻醉作用。急性中毒:主要表現為頭痛、頭暈、嗜睡、惡心、酒醉狀態(tài),嚴重者可出現昏迷。慢性影響:出現頭痛、頭暈、睡眠不佳、易疲倦。

更新時(shí)間:2024-07-14

在線(xiàn)留言
異丁烷(CH3)3CH氣體檢測管113SB ISOBUTANE 50-1200ppm

異丁烷(CH3)3CH氣體檢測管113SB ISOBUTANE 50-1200ppm

Tube 13SB
1. PERFORMANCE
1) Measuring range :50-1,000 ppm
Number of pump strokes 1(100ml)
2) Sampling time :1.5 minutes/1 pump stroke
3) Detectable limit :10 ppm
4) Shelf life :2 years
5) Operating temperature :0~40℃
6) Reading :Graduations printed on the tube are calibrated by Hexane at 1 pump stroke
and Pentane concentration is determined by using a conversion chart.
7) Colour change :Orange→Yellowish green
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:10% RSD-high:5%
3. CHEMICAL REACTION
CH3(CH2)3CH3+Cr6++H2SO4→Cr3+
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
250
400
600
800
1000
1200
1400
100
50
ppm
GAS To pump
113SB C PENTANE
0
500
Benzene〔ppm〕?
FIG.1 Influence of Benzene
Pentane indicating value 〔ppm〕
50 100 0
500
Toluene〔ppm〕?
FIG.2 Influence of Toluene
Pentane indicating value 〔ppm〕
50 100 150
Pentane concentration(ppm)?
13SB Tube reading(ppm)?
(100mR)?
50
100
200
400
600
800
1000
1200
1400
50
100
200
400
600
800
1000
Substance Interference ppm Coexistence
Alcohols Similar stain is produced. 6% Higher readings are given.
Ketones 〃〃〃
Esters 〃〃〃
Aromatic hydrocarbons 〃The bottom of the discoloured layer is stain-
FIG.1,2 ed to Black and higher readings are given.
Paraffin (morefi nth Haynd Cro3)carbons 〃Higher readings are given.

七台河市| 郎溪县| 兰州市| 镇雄县| 徐闻县| 鸡泽县| 衢州市| 汨罗市| 乌鲁木齐县| 福清市| 射洪县| 那坡县| 乐至县| 内黄县| 辽中县| 鄂温| 义马市| 武隆县| 甘南县| 西乌珠穆沁旗| 永丰县| 枣庄市| 曲沃县| 大足县| 稷山县| 钟祥市| 临沧市| 商丘市| 洪泽县| 尼木县| 尚义县| 苏尼特左旗| 罗源县| 东乌珠穆沁旗| 苗栗市| 贺兰县| 宁海县| 乌恰县| 芜湖县| 上犹县| 江油市|