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微量分析天平使用的環境要求和注意事項

發布日期:2022-04-26 點擊率:59

微量分析天平是準確稱量一定質量物質的儀器,是定量分析工作中不可缺少的重要儀器,一般是指能精確稱量到0.0001克(0.1毫克)的天平。

微量分析天平運行環境:

1.環境溫度:5-40℃
2.相對濕度: 0-80%RH
3.適用電源: 220V±10%;50Hz;

微量分析天平使用的注意事項:

(1)動作要緩而輕:升降旋樞緩慢打開且開至最大位置,慢慢轉動圈碼,防止圈碼脫落或錯位。
(2)稱量物不能直接放在稱量盤內,根據稱量物的不同性質,可放在紙片、表面皿或稱量瓶內。不能稱超過天平最大載重量的物體。
(3)同一稱量過程中不能更換天平,以免產生相對誤差。
(4)使用分析天平時除應遵循托盤天平有關操作規則外,還應注意:添加砝碼、取放稱樣或其它原因接觸天平時應先把天平梁托住,否則易使刀口損壞,這是使用天平規則中最重要的一條。

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