www.cgongxi.com-国产日产久久高清欧美一区WW,国产在线观看无码免费视频,国产日产久久高清欧美一区WW,国模欢欢炮交啪啪150P

產(chǎn)品列表PRODUCTS LIST

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>216S甲酸HCOOH氣體檢測管216S FORMIC ACID 1-50ppm

甲酸HCOOH氣體檢測管216S FORMIC ACID 1-50ppm

簡(jiǎn)要描述:

甲酸HCOOH氣體檢測管216S FORMIC ACID 1-50ppm,別稱(chēng):蟻酸(formic acid)健康危害: 主要引起皮膚、粘膜的刺激癥狀。接觸后可引起結膜炎、眼瞼水腫、鼻炎、支氣管炎,重者可引起急性化學(xué)性肺炎。濃甲酸口服后可腐蝕口腔及消化道粘膜,引起嘔吐、腹瀉及胃腸出血,甚至因急性腎功能衰竭或呼吸功能衰竭而致死。皮膚接觸可引起炎癥和潰瘍。偶有過(guò)敏反應。

更新時(shí)間:2024-07-14

在線(xiàn)留言
甲酸HCOOH氣體檢測管216S FORMIC ACID 1-50ppm

甲酸HCOOH氣體檢測管216S FORMIC ACID 1-50ppm

Tube No.216S
1. PERFORMANCE
1) Measuring range :1-50 ppm
Number of pump strokes :1(100ml)
2) Sampling time :1 minute/1 pump stroke
3) Detectable limit :0.1 ppm(100ml)
4) Shelf life :3 years
5) Operating temperature :0~40℃
6) Temperature compensation :Necessary(0~20℃)(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:10% RSD-mid.:10% RSD-high:10%
3. CHEMICAL REACTION
By reacting with alkali, PH indicator is discoloured.
HCO2H+NaOH→HCO2Na+H2O
4. CALIBRATION OF THE TUBE
VAPOUR PRESSURE METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
50
40
30
20
10
5
13
100ml
ppm
216S FORMIC ACID
Substance ppm Interference ppm Coexistence
Sulphur dioxide Similar stain is produced. HCO2Hconc. ×1/20 Higher readings are given.
Nitrogen dioxide 300 〃10 The top of discoloured layer
becomes unclear.
Hydrogen chloridFeIG.1 Pink stain is produced. HCO×2H2conc. Higher readings are given.
Chlorine FIG.2 Bprluoediusche yde. llow stain is 5 〃
Acetic acid Similar stain is produced. 〃
0
60
10
20
30
40
50
Hydrogen chloride〔ppm〕?
FIG.1 Influence of Hydrogen chloride
Formic acid indicating value 〔ppm〕
100 200 300
Coexistence
Interference
0
60
10
10
20
20
30
30
40
40
50
50
Chlorine〔ppm〕?
FIG.2 Influence of Chlorine
Formic acid indicating value 〔ppm〕
Coexistence
Interference
TEMPERATURE CORRECTION TABLE
Scale True Concentration (ppm)
Readings 0℃ 10℃ 20~40℃
(ppm) (32°F) (50°F) (68°F)
50 82 60 50
40 57 45 40
30 36 32 30
20 22 21 20
10 10 10 10
5 5 5 5
2 2 2 2
(NOTE)
This tube scale is calibrated based on Acetic acid and the same scale is available for Formic acid.

顺昌县| 丹凤县| 思南县| 盐源县| 荃湾区| 阳朔县| 什邡市| 淮北市| 长宁县| 通化市| 冷水江市| 松江区| 新兴县| 伊吾县| 信宜市| 纳雍县| 藁城市| 年辖:市辖区| 万年县| 丰台区| 云浮市| 无极县| 崇文区| 长岭县| 西畴县| 酉阳| 偃师市| 万年县| 水城县| 如东县| 贵定县| 常德市| 岳阳县| 文水县| 额敏县| 遂川县| 天峨县| 蒙山县| 始兴县| 和平县| 随州市|