7.2.1 All samples must be marked with identification information, including manufacturerÕs name, style number, unique roll number, lot number and date sampled. For most samples, it is very important to mark roll direction. This is usually done with an arrow pointing in the machine direction. The use of indelible markers or tags is recommended. Make sure that any cut sample pieces that are separate are marked appropriately.

7.2.2 Most conformance testing requires the lab to sample the material randomly across the roll width (refer to individual test standards for details). When this is required, a section of material representing the entire roll width must be shipped. Alternately, cut panels can be shipped so long as they represent random locations across the roll. Make sure that each panel is marked for identification.

7.2.3 Samples should be rolled in a durable, protective wrap so as to prevent possible damage. Be sure that the means of identification cannot be removed or damaged through the shipping process. Always use a packing list or chain of custody to indicate where the sample came from and instructions for testing or other handling.