为什么体积小（如<500ml）的容器全迁移采用mg/dm2?

现在是采用mg/kg

没有把，您在哪里看到的？能贴上来吗
我们大部分都是mg/cm2

1.
To check the compliance, the specific migration values shallbe expressed in mg/kg applying the real surface to volume ratioin actual or foreseen use.
2.
By derogation from paragraph 1 for:
(a)
containers and other articles, containing or intended to contain,
less than 500 millilitres or grams or more than 10 litres,
(b)
materials and articles for which, due to their form it isimpracticable to estimate the relationship between the surface
area of such materials or articles and the quantity of foodin contact therewith,
(c)
sheets and films that are not yet in contact with food,
(d)
sheets and films containing less than 500 millilitres or gramsor more than 10 litres,
the value of migration shall be expressed in mg/kg applying a surface
to volume ratio of 6 dm2 per kg of food.
This paragraph does not apply to plastic materials and articlesintended to be brought into contact with or already in contactwith food for infants and young children, as defined by Directives2006/141/EC and 2006/125/EC.
3.
By derogation from paragraph 1, for caps, gaskets, stoppersand similar sealing articles the specific migration value shall beexpressed in:
(a)
mg/kg using the actual content of the container for which theclosure is intended or in mg/dm2 applying the total contactsurface of sealing article and sealed container if the intendeduse of the article is known, while taking into account the provisions
of paragraph 2;
(b)
mg/article if the intended use of the article is unknown.

[quote]原文由 zhi2688(zhi2688) 发表:‘楼上的，这段的意思就是说小于500ml用mg/dm2作单位啊。’ 说错了，这段说的是以mg/kg做单位，但应该是对于特殊迁移的。

我也想知道啊

1、特定迁移用mg/kg。
2、
a、小于500ml或大于10L的容器
b、难于估计表面积与实际接触食品的量的关系
c、还没有解除食品的薄膜或薄片
d、小于500ml或大于10L的薄膜或薄片
迁移数值应用mg/kg表示。

小于500ml或大于10L的薄膜或薄片？这个怎么量体积啊

我是想知道为什么，否则做起来总觉的别扭

像薄膜袋子那种了。
为什么？法规规定的，和2002/72/EC是完全的不一样。原因的话估计得去问欧盟委员会的人解释了/

按照最新欧盟食品级接触材料塑料法规EU 10/2011，测试单位采用mg/dm2。
不管体积是大于500ml还是小于500ml。

之前小于500ml采用mg/dm2, 大于500mg，小于10L采用mg/kg是来自已经废除的指令 2002/72/EC里面的。