The International Electrotechnical Commission (IEC) based in Geneva, Switzerland has a test methods committee working on procedures for evaluating base materials and printed boards. The test method for surface waviness is currently being distributed for a consensus vote by the member countries. The comments should be compiled by November 1995. If you would like a draft copy please send me a note to my E-Mail address. Doug Sober IPC Base Materials Chairman IEC Working Group 10 Chairman [log in to unmask]