1.DD ENV 12498:1998 《Paper and board intended to come into contact with foodstuffs. Determination of cadmium, lead and chromium in an aqueous extract》(《直接接触食品的纸和纸板镉、铅、铬的测定水提取法》);
2.DD ENV 12497:1998 《Paper and board intended to come into contact with foodstuffs. Determination of mercury in an aqueousextract》(《直接接触食品的纸和纸板水银的测定水提取法》);随着人们环保意识的加强,世界上各国对进口的包装都有了各自的限制法令和规定,我们的纸箱生产企业在进行贸易时要特别引起注意,以防造成不必要的损失。