TYPE A and TYPE 2000 MAGNETIC STRIPE CARDS are simple tools that assist in evaluating the sensitivity of wet-method and dry-method magnetic particle inspection (MPI) materials. The stripe on each card contains a standardized pattern of magnetic lines across the length of the stripe. Particles are attracted to these lines and form visual indications. The cards act as a test piece and supplement the ASTM D-96 settling tube, Ketos ring and other tests for MPI materials.
The TYPE A - HIGH COERCIVITY CARD (3600 Oersted) is recommended to evaluate dry method particles and larger size wet-method particles. The TYPE 2000 - COERCIVITY CARD (300 Oersted) is recommended to evaluate finer size wet-method particles and high-sensitivity materials.