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糠醇C4H3OCH2OH檢測管別 名 呋喃甲醇;氧茂甲醇 是一種重要的有機化工原料。主要用于生產(chǎn)糠醛樹脂、呋喃樹脂、糠醇-尿醛樹脂、酚醛樹脂等。也用于制備果酸、增塑劑、溶劑和火箭燃料等。另外,在染料、合成纖維、橡膠、農(nóng)藥和鑄造等工業(yè)部門也有廣泛的用途。健康危害:本品系刺激劑。高濃度持續(xù)吸入引起咳嗽、氣短和胸部緊束感。*濃度可引起死亡。蒸氣對眼有刺激性,液體可引起眼部炎癥和角膜混濁。皮膚接觸其液體,引起皮膚干燥和刺激??诜霈F(xiàn)頭痛、惡心,口腔和胃刺激。
更新時間:2024-12-25
在線留言糠醇C4H3OCH2OH氣體檢測管238S FURFURYL ALCOHOL 2-25ppm
Tube No.238S
1. PERFORMANCE
1) Measuring range :2-25 ppm
Number of pump strokes 5(500ml)
2) Sampling time :5 minutes/5 pump strokes
3) Detectable limit :0.5 ppm
4) Shelf life :1 year
5) Operating temperature :10~40℃
6) Operating Humidity :Not affected at 20~90%RH
7) Reading :Direct reading from the scale calibrated by 5 pump strokes
8) Colour change :White→Black
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:10% RSD-high:10%
3. CHEMICAL REACTION
By reacting with Chromic acid, Polymer is produced.
4. CALIBRATION OF THE TUBE
DIFFUSION TUBE METHOD
????
????
GAS To pump
25
20
15
10
5
2
500ml
ppm
(White)
DEHUMIDIFIER
238S FURFURYL ALCOHOL
TEMPERATURE CORRECTION TABLE
Scale True Concentration (ppm)
Readings 0℃ 10℃ 20℃ 30℃ 40℃
(ppm) (32°F) (50°F) (68°F) (86°F) (104°F)
60 - - 60 35 25
50 - - 50 30 22
40 - 80 40 25 15
30 - 50 30 20 10
20 50 30 20 14 7
15 30 20 15 10 5
10 15 12 10 7 3
5 7 6 5 4 2
2 2 2 2 2 2
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