EU全迁移，特定迁移单位？

Expression of migration test results
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.
4.
For caps, gaskets, stoppers and similar sealing articles theoverall migration value shall be expressed in:
(a)
mg/dm2 applying the total contact surface of sealing articleand sealed container if the intended use of the article isknown;
(b)
mg/article if the intended use of the article is unknown