Special attention shall be directed to prevent unnecessary use of strategic or critical materials. A strategic and critical materials list can be provided from the contracting agency. In addition, requirements for the use of standard and commercial parts for which qualified products lists have been established shall be specified here. Requirements for materials to be used in the item or service covered by the specification shall be stated under this heading, except where it is more practicable to include the information in other paragraphs. Requirements of a general nature should be first, followed by specific requirements for the material.
Definitive documents cover materials of the required quality.
Where applicable, requirements pertaining to electromagnetic radiation shall be stated in terms of the environment which the item must accept and the environment which it generates. Nameplates and product marking. This paragraph shall contain requirements for nameplates, part marking, serial and lot number marking, and all other identifying markings required for the critical item and its component parts. Requirements shall usually be stated in general terms and reference made to existing standards on the content and application of such markings. The nameplate or markings in some cases may be the only means of identification of a product after delivery.