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乙酸 醋酸檢測(cè)管 216S ACETIC ACID CH3COOH,1-50ppm,突發(fā)環(huán)境污染事故是指社會(huì)生產(chǎn)和生活中使用的危險(xiǎn)品在其產(chǎn)生、運(yùn)輸、使用和消亡的整個(gè)生命周期過程中,人為的疏忽或錯(cuò)誤操作,造成泄漏,引起環(huán)境的污染和人體健康受到危害。由于突發(fā)性環(huán)境污染事故沒有固定的排放方式和排放途徑,事故發(fā)生的時(shí)間、地點(diǎn)、環(huán)境具有很大的不確定性,發(fā)生突然、來勢(shì)兇猛,在瞬時(shí)或短時(shí)間內(nèi)大量的排出污染物質(zhì),對(duì)環(huán)境造成嚴(yán)重污染和破壞,給國(guó)家和人民財(cái)產(chǎn)造成重大損失。
更新時(shí)間:2024-11-20
在線留言乙酸 醋酸檢測(cè)管 216S ACETIC ACID CH3COOH
Tube No.
1. PERFORMANCE
1) Measuring range :1-50 ppm
Number of pump strokes 1(100ml)
2) Sampling time :1.5 minutes/1 pump stroke
3) Detectable limit :0.2 ppm
4) Shelf life :3 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 Pink→Yellow
2. RELATIVE STANDARD DEVIATION
RSD-low:15% RSD-mid.:10% RSD-high:10%
3. CHEMICAL REACTION
By reacting with alkali,PH indicator is discoloured.
CH3COOH+NaOH→CH3CO2Na+H2O
4. CALIBRATION OF THE TUBE
DIFFUSION TUBE METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
3
1
ppm
100ml
GAS To pump
5
10
20
30
40
50
216S ACETIC ACID
Substance ppm Interference ppm Coexistence
Sulphur dioxide Similar stain is produced. 1/20×Acetic Higher readings are given.
acid
Nitrogen dioxide 300 〃10 Unclear stain is produced.
Hydrogen chloride Pink stain is produced. 2×Acetic FIG.1 acid Higher readings are given.
Chlorine FIG.2 Yellow stain is produced. 5 〃
TEMPERATURE CORRECTION TABLE
Scale True Concentration (ppm)
Readings 0℃ 10℃ 20℃ 30℃ 40℃
(ppm) (32°F) (50°F) (68°F) (86°F) (104°F)
50 63 57 50 45 40
40 50 45 40 36 31
30 37 33 30 27 23
20 24 22 20 18 16
10 12 11 10 9 8
5 6 6 5 5 4
3 4 4 3 3 2
1 1 1 1 1 1
0
50
30
20
40
10
Hydrogen chloride〔ppm〕?
FIG.1 Influence of Hydrogen chloride
Acetic acid indicating value 〔ppm〕
100 200 300
Coexistence
Interference
0
60
20
40
Chlorine〔ppm〕?
FIG.2 Influence of Chlorine
Acetic acid indicating value 〔ppm〕
250 500
Coexistence
Interference
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