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>237S日本北川式丁基甲基酮氣體檢測管237S Methyl butyl ketone 5-80ppm

日本北川式丁基甲基酮氣體檢測管237S Methyl butyl ketone 5-80ppm

簡(jiǎn)要描述:

丁基甲基酮氣體檢測管Methyl butyl ketone CH3(CH2)3COCH3 237S VINYL ACETATE 5-80ppm 醋酸乙烯氣體檢測管,丁基甲基酮氣體檢測管237S Methyl butyl ketone 5-80ppm,測量氣體的檢測管實(shí)際是將化學(xué)分析方法儀器化,是一種定量、定性、定值的檢測方式,具有化學(xué)分析和儀器分析的雙重優(yōu)點(diǎn)。

更新時(shí)間:2024-07-14

在線(xiàn)留言
日本北川式丁基甲基酮氣體檢測管237S Methyl butyl ketone 5-80ppm

丁基甲基酮氣體檢測管237S Methyl butyl ketone 5-80ppm

Tube No.237S

1. PERFORMANCE
1) Measuring range :10-120 ppm 5-60 ppm
Number of pump strokes 1(100ml) 2(200ml)
2) Sampling time :1.5 minutes/1 pump stroke
3) Detectable limit :1 ppm(200ml)
4) Shelf life :2 years
5) Operating temperature :0~40℃
6) Reading :Direct reading from the scale calibrated by 1 pump stroke
7) Colour change :Yellow→Pale blue
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:5% RSD-high:5%
3. CHEMICAL REACTION
Chromium oxide is reduced.
CH3CO2CH=CH2+Cr6++H2SO4→Cr3+
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
100
ml
ppm
GAS To pump
DEHUMIDIFIER
(White)
120
100
80
60
40
20
10
237S VINYL ACETATE
Substance Interference ppm Coexistence
Acetic acid The accuracy of readings is not
affected.
Ethylene 150 The top of discoloured layer becomes
unclear.
Alcohols Similar stain is produced. Higher readings are given.
Ethers 〃〃
A(mlipohrea ttihca hny Cdr3o)carbons tWo hBorloew lany. er is discoloured 〃
Aromatic hydrocarbons 〃〃
Halogenated hydrocarbons 〃〃
Esters 〃〃
Ketones 〃〃
(NOTE)
In case of 2 pump strokes, following formula is available for the actual concentration.
Actual concentration=1/2×Reading value

定陶县| 松桃| 桃园县| 南京市| 永胜县| 安远县| 兴义市| 襄垣县| 平和县| 来凤县| 凤凰县| 寿宁县| 股票| 惠水县| 攀枝花市| 石屏县| 新昌县| 蓝田县| 阜城县| 龙山县| 府谷县| 铁力市| 台南市| 哈巴河县| 嘉鱼县| 宜良县| 石渠县| 麟游县| 天柱县| 西华县| 白玉县| 利津县| 本溪| 蓝山县| 怀来县| 监利县| 凭祥市| 永昌县| 酉阳| 炉霍县| 平乐县|