You can contact according to below information! ILAC can provide such test or look for answer through their co-operations! http://www.aplac.org/proficiencytesting/schedule.htm
You can contact according to below information! ILAC can provide such test or look for answer through their co-operations! http://www.aplac.org/proficiencytesting/schedule.htm
---------------------------------------------------------- it is very useful,thanks very much.