24小时热门版块排行榜    

查看: 450  |  回复: 3
本帖产生 1 个 翻译EPI ,点击这里进行查看
当前只显示满足指定条件的回帖,点击这里查看本话题的所有回帖

czhai

木虫 (正式写手)

已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

skypeshaw

木虫 (著名写手)

【答案】应助回帖

★ ★
czhai: 金币+2 2013-08-29 09:09:40
Weigh 2g(to the nearest 0.5mg) sample  ,then transfer into the electric oven, rise the heating temperature to 103 ° ± 2 °,  keep drying for 2 hours and then placed it in a desiccator to cool to room temperature, which generally takes 30 minutes, lastly, you need to weigh the sample calculately .
4楼2013-08-28 16:31:39
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
查看全部 4 个回答

wangenfei

金虫 (正式写手)

大飞

【答案】应助回帖

★ ★ ★
czhai: 金币+3, 翻译EPI+1, xiexie 2013-08-29 09:09:33
2 g sample , accurate to 0.5 mg, was dried for 2 hours with the temperature of 103 ± 2 ℃ in an electronic thermostat, subsequently transferred to a desiccator and cooled to room temperature, generally for about 30 minutes , then be weighed and calculated.
2楼2013-08-28 14:12:53
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
信息提示
请填处理意见