AbstractGet full access to this articleView all access options for this article.Get accessReferences1. Anon. Undated. The handbook of glass manufacture , Ashby Publishing Co Inc, 310 Madison Avenue, New York, NY 10017, Vol 1, pp 389-391 and Vol 2, pp 939-941.2. Barlow, H.M. and Cullen, A.L. 1966. Microwave measurements, Constable, London.