With thin films or in cases where t

With thin films or in cases where the coating is not sufficiently strong to be stripped from the fabric as described in Paragraph (a), two specimens ofthe coated fabric shall be cemented together face to face with an adhesive suitable for adhering the type of coating being evaluated. Care should be taken not to alter the coating/fabric adhesion. The cuts shown in the above drawing shall then be made from one side being careful to penetrate only through one layer of fabric and not to injure the other fabric layer. The fabric from one side shall then be stripped down for a distance of 2 inches (5 cm). This will allow the backing fabric to be inserted in one jaw of the machine. The force required to separate the coating and the backing fabric can then be measured.Note: In case thefabric is too weak to be tested in a 1 inch (2.5 cm) width, the specimen may be cut 3inches (7.5 cm) in width and the stripfor evaluation cut 2 inches (5 cm) in width. The results shall then be recorded as pounds pull per 2 inch (5 cm) strip.Clamp the separated portion ofthe 1 inch (2.5 cm) strip in the moveable jaw of the testing machine and end D (the end of the specimen opposite the cut strip) in the fixed jaw so that the movement ofthe moveable jaw will separate the coating from the backing. The rate of travel of the moveable jaw shall be either 2 inches (5 cm) per min. or 12 inches (30 cm) per min., as specified. The distance ofthe separation ofthe coating or plies shall be a minimum of 3 inches (7.5 cm).The report shall include the following:1. Type of testing machine and the rate of travel of the moveable jaw, and2. The average test value for at least two specimens cut in the longitudinal direction and two specimens cut in the transverse direction. The averages of the five high peaks shall be used to determine the pull in pounds for reporting the adhesion ofthe coating or plies.Drawing must be altered to include ‘D’, the end ofthe sample opposite from the cut segment.