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甲基丙烯酸甲酯CH2=C(CH3)CO2CH3氣體檢測管184S METHYL METHACRYLATE 10-160ppm,別 名 異丁烯酸甲酯;牙托水;有機玻璃單體,分子式 C5H8O2;CH2C(CH3)COOCH3 外觀(guān)與性狀 無(wú)色易揮發(fā)液體,并具有強辣味,健康危害:人對本品氣味感覺(jué)閾濃度為85mg/m3 ,刺激作用閾濃度(暴露1分鐘)為285mg/m3。中毒表現為乏力、惡心、反復嘔吐、頭痛、頭暈、胸悶、伴有短暫的意識消失、中性白細胞增多癥。慢性中毒:神經(jīng)系統受損的綜合癥狀占主要地位
更新時(shí)間:2024-07-14
在線(xiàn)留言甲基丙烯酸甲酯CH2=C(CH3)CO2CH3氣體檢測管184S METHYL METHACRYLATE 10-160ppm
Tube 84S
1. PERFORMANCE
1) Measuring range :10-160 ppm
Number of pump strokes 1(100ml)
2) Sampling time :1.5 minutes/1 pump stroke
3) Detectable limit :2 ppm
4) Shelf life :2 years
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 :Pale yellow→Pale blue
2. RELATIVE STANDARD DEVIATION
RSD-low:15% RSD-mid.:10% RSD-high:5%
3. CHEMICAL REACTION
Chromium oxide is reduced.
H2C=C(CH3)CO2CH3+Cr6++H2SO4→Cr3+
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
10
20
40
60
80
100
120
140
160
ppm
100ml
GAS To pump
184S METHYL METHACRYLATE
TEMPERATURE CORRECTION TABLE
Scale True Concentration (ppm)
Readings 0℃ 10℃ 20℃ 30℃ 40℃
(ppm) (32°F) (50°F) (68°F) (86°F) (104°F)
160 190 175 160 150 140
140 165 155 140 130 125
120 140 130 120 110 105
100 120 110 100 95 90
80 95 90 80 75 70
60 70 65 60 55 50
40 47 44 40 37 35
20 24 22 20 19 17
10 12 11 10 9 9
Substance Interference Coexistence
Alcohols Similar stain is produced. Higher readings are given.
Esters Whole layer is discoloured to Black. 〃
Ketones 〃〃
Aromatic hydrocarbons 〃〃
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