亚洲中文久久精品无码WW16,亚洲国产精品久久久久爰色欲,人人妻人人澡人人爽欧美一区九九,亚洲码欧美码一区二区三区

您好, 歡迎來到化工儀器網(wǎng)

| 注冊| 產(chǎn)品展廳| 收藏該商鋪

400-875-1717轉(zhuǎn)801

Download

首頁   >>   資料下載   >>   C, S determination in pure iron samples

弗爾德（上海）儀器設(shè)備有...

立即詢價(jià)

您提交后，專屬客服將第一時(shí)間為您服務(wù)

C, S determination in pure iron samples

閱讀：2696      發(fā)布時(shí)間：2015-05-15
分享：
  Suitable analyzers
n CS-800
n CS-2000 (induction furnace)
Used accessories
n Ceramic crucibles (90150)
n Tungsten (90220)
n Suitable calibration material (NIST or other)
Settings
n Comparator level: 10 mV
(low C, S Channel only)
n Minimum time: 45 sec
n Maximum time: 3:00 min
n Integration delay: 6 sec
n Post-waiting: 10 sec
n Pre-purging: 15 sec
n Base line deviation: 5 mV
Base line time: 30 sec
n T1 - Pre-purging: 5 sec
n T2 - Chamber only: 5 sec
n T3 - Chamber and lance: 1 sec
n T4 - Generator: 40 sec
Sample preparation
Make sure that the surface of the pure iron is free from contaminations;
otherwise clean the sample with acetone p.a. and let dry at atmosphere.
Pre-heat the crucibles at least 1 h at 1000°C ; let the crucibles cool down
in an exsiccator.
Procedure
n Prepare ELTRA analyzer (e.g. exchange anhydrone, sodium hydoxide,
copper oxide when necessary); clean the combustion tube, brush, heating
shield, dust trap
n Run three warm up samples (e.g. steel samples (92400-3050) with a
minimum weight of 500 mg; add 1.5 g tungsten)
n Calibrate the analyzer with suitable calibration material (NIST or other)
(1) Weigh in approx. 500 mg of sample in the ceramic crucibles (90150)
(2) Add 1.7 (±0.1 g) of tungsten (90220)
(3) Place the crucible on the pedestal and start analysis
Repeat step (1) - (3) at least three times;
Mark the results and use the calibration function in the software.

提供商

 弗爾德（上海）儀器設(shè)備有限公司

下載次數(shù)

 172次

資料大小

 345.2KB

資料類型

 PDF 文件

資料圖片

 --

瀏覽次數(shù)

 2696次

產(chǎn)品展示

會員登錄

請輸入賬號

請輸入密碼

=

請輸驗(yàn)證碼

收藏該商鋪

標(biāo)簽：
保存成功

(空格分隔,最多3個(gè),單個(gè)標(biāo)簽最多10個(gè)字符)

常用：

提示

您的留言已提交成功！我們將在第一時(shí)間回復(fù)您~
在線留言