求助！！！关于迁移测试面积计算问题。

1。塑料膜做水浸泡迁移，是算双面面积还是单面，是不是欧标上说厚度要超过0。5毫米才算双面积？国标呢？

欧盟以0.5mm为界，国标也可参照。

2。EN1186-3的测试方法是1dm2样品浸泡在100ML溶液里，但是又有同学说是6DM2对应1000ML 请问怎么选择。

全迁移为1：1，特殊迁移为1：1.67.

EN 1186-1里有对各种测试方法使用的面积体积比有介绍

9.2 Surface to volume ratio
Where the surface to volume ratio to be used in contact with food is known this is used in the migration testing.

9.3 by total immersion
The surface to volume ratio in the total immersion test is conventionally 1 dm² of food contact area to 100 ml of food simulant.

9.4 Single surface testing using a cell
As an example the use of cell type A is described in EN 1186-4. The surface to volume ratio in the type A cell is conventionally 2,5 d m² of food contact area to 125 ml of food simulant.

9.5 Single surface testing by pouch
9.6 Single surface testing using a reverse pouch
Where the surface to volume ratio to be used in contact with food is not known, the conventional conditions are used, i.e. 2 dm² of
surface in contact with 100 ml of simulant.

板凳发的一直是英文啊，需要有一定的英文基础的，不然还真看不懂，呵呵

嗯，受益匪浅啊

问一下欧标以0.5mm爲界得标准出处啊，以前好像看到过，但是现在想找却找不到了

EN1186-1：2002里面第26页有说道
However, the experimentation can be avoided in the case of materials with a thickness greater than 0,5 mm