亚洲AV成人片无码网站玉蒲团,男人10处有痣是富贵痣,AV亚洲欧洲日产国码无码苍井空,日韩午夜欧美精品一二三四区

上海境宣實業有限公司
中級會員 | 第16年

17601355022

當前位置:上海境宣實業有限公司>>日本光明北川式氣體檢測管>>氣體快速檢測管>> 213S三乙胺(C2H5)3N氣體檢測管213S TRIETHYL AMINE 1-20ppm

三乙胺(C2H5)3N氣體檢測管213S TRIETHYL AMINE 1-20ppm

參  考  價面議
具體成交價以合同協議為準

產品型號213S

品       牌

廠商性質代理商

所  在  地上海市

更新時間:2024-12-19 11:06:26瀏覽次數:3168次

聯系我時,請告知來自 化工儀器網
三乙胺(C2H5)3N氣體檢測管213S TRIETHYL AMINE 1-20ppm,英文名稱 triethylamine(TEA);N,N-二乙基乙胺,別名 N,N-二乙基乙胺,健康危害:對呼吸道有強烈的刺激性,吸入后可引起肺水腫甚至死亡。口服腐蝕口腔、食道及胃。眼及皮膚接觸可引起化學性灼傷。

三乙胺(C2H5)3N氣體檢測管213S TRIETHYL AMINE 1-20ppm

Tube No.213S
1. PERFORMANCE
1) Measuring range :2-20 ppm 1-10 ppm
Number of pump strokes 1/2(50ml) 1(100ml)
2) Sampling time :1 minute/1 pump stroke
3) Detectable limit :0.2 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 :Pale purple→Pale yellow
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:5% RSD-high:5%
3. CHEMICAL REACTION
By reacting with phosphoric acid, PH indicator is discoloured.
2(C2H5)3N+H3PO4→〔(C2H5)3NH〕2HPO4
4. CALIBRATION OF THE TUBE
VAPOUR PRESSURE METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
6
4
2 1
DEHUMIDIFIER
(White)
10
8
100ml
ppm
213S TRIETHYL AMINE
(NOTE)
In case of 1 / 2 pump strokes, following formula is available for the actual concentration.
Actual concentration=2×Reading value.
Substance Interference Coexistence
Ammonia Similar stains are produced and Higher readings are given.
higher readings are given.
Other amines 〃〃

會員登錄

×

請輸入賬號

請輸入密碼

=

請輸驗證碼

收藏該商鋪

X
該信息已收藏!
標簽:
保存成功

(空格分隔,最多3個,單個標簽最多10個字符)

常用:

提示

X
您的留言已提交成功!我們將在第一時間回復您~
撥打電話
在線留言