產品詳情
簡單介紹：
光明理化甲醛HCHO氣體檢測171SC
光明理化甲醛HCHO氣體檢測171SC，光明理化甲醛HCHO氣體檢測171SC FORMALDEHYDE 0.05-4.0ppm，日本光明理化工業(yè)株式會社從1947年開始，在氣體分析領域開拓了六十余年 , 形成了馳名于世的 ” 北川 ” 式氣體檢測管。
詳情介紹：
光明理化甲醛HCHO氣體檢測171SC
光明理化甲醛HCHO氣體檢測171SC，光明理化甲醛HCHO氣體檢測171SC FORMALDEHYDE 0.05-4.0ppm，日本光明理化工業(yè)株式會社從1947年開始，在氣體分析領域開拓了六十余年 , 形成了馳名于世的 ” 北川 ” 式氣體檢測管。氣體快速分析法 ” 北川 ” 的歷史就是日本檢測管的歷史 。目前是世界上*大的檢測管生產廠家，也是日本**家通過美國SEI的認證，歐盟的認證的檢測管廠家。公司不僅有ISO9001:2000的認證，還獲得了環(huán)境管理的ISO14001的認證。北川式手動氣體采集器AP-20 備有采氣完成指示計 , 可以清楚的判明采氣是否完成 . • 有專門截留玻璃的截留槽 , 以防止檢測管割尖時玻璃片飛濺 . • 有采氣容積為 50 毫升和 100 毫升的兩段式制動卡 . • 采氣器極為小巧 , 并有便于攜帶的皮具包 。
Tube No.171SC
1. PERFORMANCE
1) Measuring range ：0.1-4.0 ppm 0.05-2.0 ppm
Number of pump strokes 5(500mr) 10(1000ml)
2) Sampling time ：5 minutes/5 pump strokes
3) Detectable limit ：0.03 ppm(1000ml)
4) Shelf life ：1 year (Necessary to store in a refrigerated place ; 0～10℃)
5) Operating temperature ：10～40℃
6) Temperature compensation ：Necessary(See "TEMPERATURE CORRECTION TABLE")
7) Reading ：Direct reading from the scale calibrated by 5 pump strokes
8) Colour change ：Yellow→Pink
2. RELATIVE STANDARD DEVIATION
RSD-low：10％ RSD-mid.：10％ RSD-high：10％
3. CHEMICAL REACTION
By reaction with Hydroxylamine phosphate acid is liberated and PH indicator is discoloured.
HCHO＋(NH3OH)3?H3PO4→H3PO4＋HCH＝NOH＋H2O
4. CALIBRATION OF THE TUBE
COLOURIMETRY METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
4.0
3.0
2.0
1.0
0.1
0.5
0.3
500ml
ppm
(White)
DEHUMIDIFIER
171SC FORMALDEHYDE
Substance ppm Interference ppm Coexistence
Ammonia
The accuracy of readings is 10 Lower readings are given. Inlet
not affected. side is faded the discoloured layer.
Higher readings are given. The
Nitrogen dioxide 3 Similar stain is produced. 3 top of discoloured layer becomes
unclear.
Acetaldehyde 〃Higher readings are given.
Toluene
The accuracy of readings is
not affected.
TEMPERATURE CORRECTION TABLE
Tube Corrected Concentration (ppm)
Readings 10℃ 20℃ 30℃ 40℃
(ppm) (50°F) (68°F) (86°F) (104°F)
4.0 6.4 4.0 2.4 1.6
3.5 5.6 3.5 2.1 1.4
3.0 4.8 3.0 1.8 1.2
2.5 4.0 2.5 1.5 1.0
2.0 3.2 2.0 1.2 0.8
1.5 2.4 1.5 0.9 0.6
1.0 1.6 1.0 0.6 0.4
0.5 0.8 0.5 0.3 0.2
0.3 0.5 0.3 0.18 0.12
0.1 0.16 0.1 0.06 0.04
(NOTE)
In case of 10 pump strokes, following formula is available for the actual concentration.
Actual concentration ＝ 1/2 × Tmperature corrected value
1. PERFORMANCE
1) Measuring range ：0.1-4.0 ppm 0.05-2.0 ppm
Number of pump strokes 5(500mr) 10(1000ml)
2) Sampling time ：5 minutes/5 pump strokes
3) Detectable limit ：0.03 ppm(1000ml)
4) Shelf life ：1 year (Necessary to store in a refrigerated place ; 0～10℃)
5) Operating temperature ：10～40℃
6) Temperature compensation ：Necessary(See "TEMPERATURE CORRECTION TABLE")
7) Reading ：Direct reading from the scale calibrated by 5 pump strokes
8) Colour change ：Yellow→Pink
2. RELATIVE STANDARD DEVIATION
RSD-low：10％ RSD-mid.：10％ RSD-high：10％
3. CHEMICAL REACTION
By reaction with Hydroxylamine phosphate acid is liberated and PH indicator is discoloured.
HCHO＋(NH3OH)3?H3PO4→H3PO4＋HCH＝NOH＋H2O
4. CALIBRATION OF THE TUBE
COLOURIMETRY METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
4.0
3.0
2.0
1.0
0.1
0.5
0.3
500ml
ppm
(White)
DEHUMIDIFIER
171SC FORMALDEHYDE
Substance ppm Interference ppm Coexistence
Ammonia
The accuracy of readings is 10 Lower readings are given. Inlet
not affected. side is faded the discoloured layer.
Higher readings are given. The
Nitrogen dioxide 3 Similar stain is produced. 3 top of discoloured layer becomes
unclear.
Acetaldehyde 〃Higher readings are given.
Toluene
The accuracy of readings is
not affected.
TEMPERATURE CORRECTION TABLE
Tube Corrected Concentration (ppm)
Readings 10℃ 20℃ 30℃ 40℃
(ppm) (50°F) (68°F) (86°F) (104°F)
4.0 6.4 4.0 2.4 1.6
3.5 5.6 3.5 2.1 1.4
3.0 4.8 3.0 1.8 1.2
2.5 4.0 2.5 1.5 1.0
2.0 3.2 2.0 1.2 0.8
1.5 2.4 1.5 0.9 0.6
1.0 1.6 1.0 0.6 0.4
0.5 0.8 0.5 0.3 0.2
0.3 0.5 0.3 0.18 0.12
0.1 0.16 0.1 0.06 0.04
(NOTE)
In case of 10 pump strokes, following formula is available for the actual concentration.
Actual concentration ＝ 1/2 × Tmperature corrected value