国产日韩欧美_国产亚洲一卡2卡3卡4卡网站_国产亚洲精品综合网在线观看_国产亚洲成AⅤ人片在线奶水_国产下药迷倒白嫩美女在线_国产午夜精品一区二E1_日本国产制服丝袜一区

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>128SD丙烯腈檢測管128SD ACRYLONITRILE CH2=CHCN 0.2-20ppm

丙烯腈檢測管128SD ACRYLONITRILE CH2=CHCN 0.2-20ppm

簡要描述:

丙烯腈檢測管128SD ACRYLONITRILE CH2=CHCN 0.2-20ppm,氣體檢測管是用來檢測某種氣體在某一環(huán)境中所含濃度的簡易檢測裝置,通過檢測劑與被檢測氣體的反應(yīng)而出現(xiàn)顏色變化,來表示所測環(huán)境中的氣體濃度。在不用任何能源、電源的情況下,具有操作簡單、使用范圍廣、檢測準(zhǔn)確、即時(shí)性強(qiáng)和經(jīng)濟(jì)的特點(diǎn)。

更新時(shí)間:2024-12-25

發(fā)郵件給我們:554328895@qq.com

分享到: 1
在線留言
丙烯腈檢測管128SD ACRYLONITRILE CH2=CHCN 0.2-20ppm

丙烯腈檢測管128SD ACRYLONITRILE CH2=CHCN 0.2-20ppm

Tube 28SD
1. PERFORMANCE
1) Measuring range :1-20 ppm 0.5-10 ppm 0.25-5 ppm 0.2-4 ppm
Number of pump strokes 1(100mr) 2(200mr) 4(400mr) 5(500mr)
2) Sampling time :1.5 minutes/1 pump stroke
3) Detectable limit :0.05ppm(500mr)
4) Shelf life :1 year (Necessary to store in refrigerated place ; 0~10℃)
5) Operating temperature :0~40℃
6) Temperature compensation :Necessary(See "TEMPERATURE CORRECTION TABLE")
7) Reading :Direct reading from the scale calibrated by 1 pump stroke
8) Colour change :Yellow→Red
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:5% RSD-high:5%
3. CHEMICAL REACTION
By decomposing with an Oxidizer, Hydrogen cyanide is produced, Hydrogen cyanide reacts with Mercuric
chloride, then Hydrogen chloride is liberated and PH indicator is discoloured.
CH2=CHCN+CrO3+H2SO4→HCN
HCN+HgCI2→HCI
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
125
15
20
10
ppm
100ml
GAS To pump
(Reddish brown)
PRETREAT TUBE DETECTOR TUBE
128SD ACRYLONITRILE
Substance Interference ppm Coexistence
Butadiene
Less than
350 ppm Not affected.
Toluene
Less than
600 ppm 〃
Hexane
Less than
800 ppm 〃
Styrene
Less than
720 ppm 〃
(NOTE)
In case of 2 to 5 pump strokes can be used to detemine the lower concentration.
Following formula is available for actual concentration.
Actual concentration=Tmperature corrected value×
TEMPERATURE CORRECTION TABLE
Scale True Concentration (ppm)
Readings 0℃ 10℃ 20℃ 30℃ 40℃
(ppm) (32°F) (50°F) (68°F) (86°F) (104°F)
20 26 22.5 20 18 17
18 23 20 18 16.5 15.5
16 20.5 18 16 15 14
14 18 15.5 14 13 12
12 15.5 13.5 12 11 10.5
10 13 11 10 9.5 9
8 10.5 9 8 7.5 7
6 8 7 6 6 5.5
4 5.5 4.5 4 4 4
2 3 2 2 2 2
1 1.5 1 1 1 1
1
Number of strokes
www.r-biopharm.com.cn
www.r-biopharm.com.cn

顺昌县| 无棣县| 陆河县| 泗水县| 连城县| 通山县| 长汀县| 中宁县| 鄯善县| 福泉市| 临沭县| 长宁区| 方正县| 巨鹿县| 南漳县| 比如县| 绵竹市| 乐至县| 祁连县| 连南| 商南县| 都昌县| 若羌县| 石城县| 晴隆县| 玉屏| 马关县| 新巴尔虎右旗| 孟州市| 潞西市| 福州市| 华宁县| 河北区| 集贤县| 保康县| 永城市| 益阳市| 彭山县| 攀枝花市| 岚皋县| 西宁市|