A description of apparatus and technique for a suggested standardized melting point determination especially designed for the Bachmann product is presented. The most important suggestion is that the lower value of the melting point range be the temperature at which frothing first occurs. Samples of two batches of RDX were sent to nine laboratories with the request that each determine the melting points by their usual procedure. Each received portions of the same sample A and sample B. The results of these determinations are included.