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    項目檢索Retrieval

     

    包裝物的噴淋與浸水試驗的方法

     

      包裝物在生產和運輸過程中,不可避免的會使物品在流通過程中被水浸濕,海達就包裝物的噴淋與浸水試驗的方法進行分析:

     

      噴淋和浸水試驗用于檢驗商品在流通過程中被水浸濕后造成的損失。

     

      1.噴淋試驗

     

      噴淋試驗是用于檢查或評定包裝物對雨淋等的防御能力,以及包裝對內裝物的保護程度。

     

      噴淋試驗原理是:將經過溫濕度處理的包裝試驗樣品放置在試驗環境下,在設定的溫度條件下,按預定的噴水量(或噴水速度)和預定的時間內進行噴淋,以測試包裝物被浸濕的狀態。

     

      噴淋的溫度條件和時間應根據流通環境條件選擇,時間一般在5min15min60min中選取。噴水量一般穩定在(100±20)L/(.h)

     

      噴淋試驗的試驗條件和試驗方法可按國家標準《包裝運輸包裝件基本試驗第9部分:噴淋試驗方法》(GB 4857.9-2008)的規定進行。

     

      當前可參照或執行《包裝完成的、被填充的運輸包裝水淋試驗》(IS0 2875:2003)的國際標準。

     

      2.浸水試驗

     

      浸水試驗用于檢查和評定包裝件浸于水中時的抗浸透能力,以及包裝對內裝物的保護程度。

     

      浸水試驗的原理是:將經過溫濕度處理的試驗包裝物樣品,按預定的時間完全浸入水中,讓水滲透或浸入包裝件內。然后從水中取出試驗樣品,并在規定的條件下瀝干。

     

      試驗樣品一般應是實際的運輸包裝物,但在一定條件下,內裝物也可以是被包裝產品的模擬物,模擬物的尺寸和物理性能應當盡可能接近實際內裝物。

     

      浸水前和瀝干時的溫濕度條件應當一致,浸泡時間和瀝干時間都應根據實際流通環境條件來選取。一般浸泡時間可在5min15min30minth2h4h中選取。瀝干時間可在4h8h16h24h48h72h1周、2周、3周中選取。

     

      浸水試驗的試驗條件和試驗方法應按國家標準《包裝運輸包裝件浸水試驗方法》(GB 4857.12-1992)的規定進行。

     

      當前可參照或執行《包裝完成的、被填充的運輸包裝浸水試驗》(IS0 8474:1986)的國際標準。

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