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                                                                                                                        首頁 > 新聞中心 > 還不會使用1mg分析天平?進來看吧
                                                                                                                        還不會使用1mg分析天平?進來看吧
                                                                                                                        發布日期:2022-10-20      瀏覽次數:264
                                                                                                                           1mg分析天平作為常用的實驗室稱量工具其構成部分由以下組成:平衡螺絲、衡梁、、左右承重刀(瑪瑙刀)、指針、空氣阻尼器、吊耳、秤盤等。其梁的三個支點都是瑪瑙刀口,中間的支點刀口朝下,放在頂端有瑪瑙臺的支柱上,兩邊的支點刀口朝上。三個支點在同一個水平面上。不用時,天平梁托起,使用時,打開旋鈕輕放于支撐面上,所以開關旋鈕要緩慢。
                                                                                                                         
                                                                                                                          今天小編要與大家分享的是1mg分析天平的使用方法,希望能夠幫助到您:
                                                                                                                         
                                                                                                                          1、每個學生必須按天平稱量,未經指導老師批準,不得擅自使用其它天平。
                                                                                                                         
                                                                                                                          2、各人對自己的天平要負責,保持清潔,要及時更換硅膠,若發現天平有不正?,F象,及時報告指導老師。
                                                                                                                         
                                                                                                                          3、進入天平室必須帶原始記錄本,稱量數據應記在原始記錄本上,不得記在紙上,不得隨意涂改原始數據。
                                                                                                                         
                                                                                                                          4、稱量前,應先檢查天平的水平,檢查天平盤、底座。如不干凈,應用毛刷清掃干凈,然后開啟旋扭,檢查零點。
                                                                                                                         
                                                                                                                          5、稱量前,應先在臺稱上稱取大致重量,然后在天平上稱取準確重量。
                                                                                                                         
                                                                                                                          6、不得稱量冷、熱的物質,稱量物品不能直接放在天平盤上,必須使用稱量瓶,稱量腐蝕性或揮發性的物質,必須放在密閉容器內。
                                                                                                                         
                                                                                                                          7、起落升降樞鈕必須小心、緩慢,不得使天平劇烈振動,以免損壞天平。
                                                                                                                         
                                                                                                                          8、在托盤上放、取所稱物體和砝碼,都必須在天平梁托起情況下進行。
                                                                                                                         
                                                                                                                          9、天平前門不能隨意打開,稱量過程中,放砝碼和物體,只能打開左右門,稱量物質和砝碼應放在托盤中間。
                                                                                                                         
                                                                                                                          10、稱量完畢,記錄數據,關好旋鈕,取出物體,將指數盤還原,關好天平門,切斷電源,罩好天平罩,登記使用情況,方可離開。
                                                                                                                         
                                                                                                                          11、保持天平室內安靜、清潔。不得隨意亂扔紙屑。

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