亚洲精品一区二区三区中文字幕,23部禽亲女小丹慢慢张开双,妺妺窝人体色www在线下载,xxxx丰满小少妇女高潮

產(chǎn)品列表PRODUCTS LIST

首頁>產(chǎn)品中心>日本光明北川式氣體檢測管>氣體快速檢測管>130U異丙基硫醇(CH3)2CHSH氣體檢測管130U ISOPROPYL MERCAPTAN 0.5-1

異丙基硫醇(CH3)2CHSH氣體檢測管130U ISOPROPYL MERCAPTAN 0.5-1

簡要描述:

異丙基硫醇(CH3)2CHSH氣體檢測管130U ISOPROPYL MERCAPTAN 0.5-10ppm,便攜式氣體檢測管異丙基硫醇檢測管((CH3)2CHSH)被檢物質(zhì)和化學式檢測管型號和名稱 抽氣顏色變化。實際上,共存氣體對目標氣體的干擾是比較復(fù)雜的,但在大多數(shù)情況下,只有*種情況出現(xiàn)的較多,異丙(基)硫醇;2-丙硫醇;Isopropyl mercaptan

更新時間:2025-01-08

在線留言
異丙基硫醇(CH3)2CHSH氣體檢測管130U ISOPROPYL MERCAPTAN 0.5-1

異丙基硫醇(CH3)2CHSH氣體檢測管130U ISOPROPYL MERCAPTAN 0.5-10ppm

Tube 30U
1. PERFORMANCE
1) Measuring range :1-10 ppm 0.5-5 ppm
Number of pump strokes :1/2(50ml) 1(100ml)
2) Sampling time :1 minute/1 pump stroke
3) Detectable limit :0.2 ppm(100ml)
4) Shelf life :2 years
5) Operating temperature :0~40℃
6) Reading :Direct reading from the scale calibrated by Methyl mercaptan at 1 pump stroke
7) Colour change :Pale yellow→Pink
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:5% RSD-high:5%
3. CHEMICAL REACTION
By reacting with Mercuric cholride, Hydrogen chloride is produced and PH indicator is discoloured.
C2H5SH+HgCI2→RS(HgCI)+HCI
4. CALIBRATION OF THE TUBE
STANDARD GAS CYLINDER METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
????
GAS ???? To pump
5
4
3
2
1
0.5
100ml
ppm
(White)
DEHUMIDIFIER
130U ETHYL MERCAPTAN
Substance Interference Coexistence
Arsine Similar stain is produced. Higher readings are given.
Hydrogen selenide 〃〃
Phosphine 〃〃
Hydrogen sulphide 〃
Hydrogen cyanide Whole reagent is changed to Red. 〃
Whole reagent is changed to
Sulphur dioxide Pale red, but Pink stain indicates
Mercaptans conc.
(NOTE)
In case of 1 / 2 pump strokes, following formula is available for the actual concentration.
Actual concentration=2×Reading value

久久er99热精品一区二区| 无码人妻一区二区三区在线| 亚洲三级| 色综合久久88色综合天天| 国产裸体舞一区二区三区| japanese酒醉侵犯| 亚洲av久久无码| 国产精品99久久久久久www| 精品一品国产午夜福利视频| 国产精品毛片va一区二区三区| 性直播视频在线观看| 超碰视频在线| 儿媳3中字免费完整在线| 男生和女生一起打扑克| 国产精品无码久久久久不卡| 清纯校花被脔日常h苏苏np| 波多野结衣在线视频| 被全村灌满精的雯雯| 日韩欧美一中文字暮专区| 餐桌下狂C亲女高辣| 强壮的公次次弄得我高潮a片日本| 白嫩少妇激情无码| 快穿之胸大喂奶h| 精品少妇人妻av无码专区偷人| 激情人妻另类人妻伦| jrs直播(无插件)直播| 欧美+日本+国产| 公交车上内裤滑进去了会怎么样| 性乌克兰18videos少妇| 糟蹋稚嫩的身体发泄h| 中文乱码字慕人妻熟女人妻| 欧美18videosex性欧美| 熟女丰满老熟女熟妇| 和子发生了性关系的免费视频 | 国产精品日本一区二区不卡视频| 无码国内精品人妻少妇蜜桃视频| 中文无码一区二区三区在线观看 | 无码人妻丰满熟妇区bbbbxxxx | 亚洲av综合色区无码一二三区| 护士趴下光屁股翘臀被打的作文 | 一本大道精品成人免费视频|