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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>120SB硫化氫H2S氣體檢測管120SB HYDROGEN SULPHIDE 0.75-300ppm

硫化氫H2S氣體檢測管120SB HYDROGEN SULPHIDE 0.75-300ppm

簡(jiǎn)要描述:

硫化氫H2S氣體檢測管120SB HYDROGEN SULPHIDE 0.75-300ppm,污染來(lái)源:硫化氫很少用于工業(yè)生產(chǎn)中,一般作為某些化學(xué)反應和蛋白質(zhì)自然分解過(guò)程的產(chǎn)物以及某些天然物的成分和雜質(zhì),而經(jīng)常存在于多種生產(chǎn)過(guò)程中以及自然界中。如采礦和有色金屬冶煉。煤的低溫焦化,含硫石油開(kāi)采、提煉,橡膠、制革、染料、制糖等工業(yè)中都有硫化氫產(chǎn)生。開(kāi)挖和整治沼澤地、溝渠、印染、下水道、隧道以及清除垃圾、糞便等作業(yè),還有天然氣、火山噴氣、礦泉中也常伴有硫化氫存在。

更新時(shí)間:2024-07-14

在線(xiàn)留言
硫化氫H2S氣體檢測管120SB HYDROGEN SULPHIDE 0.75-300ppm

硫化氫H2S氣體檢測管120SB HYDROGEN SULPHIDE 0.75-300ppm

Tube 20SB

1. PERFORMANCE
1) Measuring range :3-150 ppm 1-50 ppm 0.75-37.5 ppm 6-300 ppm
Number of pump strokes 1(100ml) 3(300ml) 4(400ml) 1/2(50ml)
2) Sampling time :1 minutes/1 pump stroke
3) Detectable limit :0.3 ppm(300ml)
4) Shelf life :3 years
5) Operating temperature :0~40℃
6) Reading :Direct reading from the scale calibrated by 1 pump stroke
7) Colour change :White→Dark brown
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:5% RSD-high:5%
3. CHEMICAL REACTION
By reacting with Lead acetate(II), Lead sulphide is produced.
H2S+Pb(CH3CO2)2→PbS+2CH3CO2H
4. CALIBRATION OF THE TUBE
PERMEATION TUBE METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
150
140
130
120
110
100
90
80
70
60
50
40
30
20
10
6 3
100ml
ppm
??
????
120SB HYDROGEN SULPHIDE
Substance Interference ppm Coexistence
Sulphur dioxide FIG.1 Tish neo at cacffuercatceyd .of readings 12 Higher readings are given.
Mercaptans FIG.2 〃550 〃
Nitrogen dioxide FIG.3 〃2 Lower readings are given.
(NOTE)
In case of 1 / 2, 2, 3 or 4 pump strokes, following formula is available for the actual concentration.
Actual concentration=Reading value ×
0
60
80
20
Sulphur dioxide〔ppm〕?
FIG.1 Influence of Sulphur dioxide
Hydrogen sulphide indicating value 〔ppm〕
200 400
300ml
0
60
80
20
Ethyl mercaptan〔ppm〕?
FIG.2 Influence of Ethyl mercaptan
Hydrogen sulphide indicating value 〔ppm〕
200 400 600
300ml
0
100
150
50
Nitrogen dioxide〔ppm〕?
FIG.3 Influence of Nitrogen dioxide

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