1. Each item in a consignment shall be considered separately. 2. Notwithstanding the provisions of paragraph 1 of this Rule: a) where the Word Customs Organisation’s Nomenclature specifies that a group, set or assembly of articles is to be classified within a single heading, such a group, set or assembly shall be treated as one article; b) tools, parts and accessories which are imported with an article, and the price of which is included in that on the article or for which no separate charge is made, shall be considered as forming a whole with the article provided that they constitute the standard equipment customarily included on the sale of article of that kind; c) notwithstanding the provisions of sub-paragraphs (a) and (b) of this paragraph, goods shall be treated as a single article if they are so treated for purposes of assessing Customs duties on like articles by the importing Member State. 3. An un-assembled or dis-assembled article which is imported in more than one consignment because it is not feasible for transport or production reasons to import it in a single consignment, shall be treated as one article. RULE 7 SEPARATION OF MATERIALS 1. For those products or industries where it would be impracticable for the producers to separate physically materials of similar character but different origin used in the production of goods,