夜夜爽夜夜叫夜夜高潮漏水,13小男生GAY自慰脱裤子,亚洲国产精品美女久久久久AV,中文字幕丰满乱孑伦无码专区

產品列表PRODUCTS LIST

首頁>產品中心>日本光明北川式氣體檢測管>氣體快速檢測管>103SD二氧化硫SO2氣體檢測管式檢測儀103SD SULPHUR DIOXIDE 1-60ppm

二氧化硫SO2氣體檢測管式檢測儀103SD SULPHUR DIOXIDE 1-60ppm

簡要描述:

二氧化硫SO2氣體檢測管式檢測儀103SD SULPHUR DIOXIDE 1-60ppm,氣體檢測管是利用填充在玻璃管中的檢測劑與被測氣體發生化學反應而發生顏色變化,通過觀察變色層的長度,得到被測氣體的濃度。在一定直徑的玻璃管內緊密地裝填檢測劑,將兩端燒封,然后在玻璃管表面印制表示濃度的刻度,就制成了一支檢測管。檢測劑通過在硅膠或氧化鋁等物質表面附著顯色試劑的方法所制成的。顯色試劑遇到被測氣體時,會發生特定反應,產生變色,這種檢測試劑具有相當的穩定性。

更新時間:2024-12-19

發郵件給我們:554328895@qq.com

分享到: 1
在線留言
二氧化硫SO2氣體檢測管式檢測儀103SD SULPHUR DIOXIDE 1-60ppm

二氧化硫SO2氣體檢測管式檢測儀103SD SULPHUR DIOXIDE 1-60ppm

Tube 03SD
1. PERFORMANCE
1) Measuring range :1-60 ppm
Number of pump strokes 1(100ml)
2) Sampling time :1 minute/1 pump stroke
3) Detectable limit :0.5 ppm
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 :Pink→Yellow
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:5% RSD-high:5%
3. CHEMICAL REACTION
By reacting with alkali, PH indicator is discoloured.
SO2+2NaOH→Na2SO3+H2O
4. CALIBRATION OF THE TUBE
PERMEATION TUBE METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
60
50
40
30
20
10
5
1
ppm
SO2
GAS To pump
103SD SULPHUR DIOXIDE
Substance ppm Interference ppm Coexistence
Chlorine Pale pink stain is produced. SO2 ×c2onc. Higher readings are given.
SO2 conc. The top of discoloured layer
Nitrogen dioxide 20 〃×1 becomes un clear and higher
readings are given.