This, the second special topical conference on the properties of
Non-Metallic Materials at Low Temperatures, was sponsored by the
International Cryogenic Materials Conference Board. The potential for
plastics materials in the field of cryogenics is vast and as yet only
partly explored. In addition, many other materials, which qualify for
the title non-metallic but are not 'plastics', have numerous possible
outlets in low temperature technology. This conference aimed at
providing a forum, whereby specialists from Industry, the Universities
and from Government sponsored Institutions could assemble to discuss the
extent of our current knowledge. As it transpired, the meeting was also
to high- light the considerable gaps that still exist in our fundamental
understanding of the low temperature behaviour of these materials. On
this theme, during the course of the conference, a reference was made to
an almost forgotten quotation by Lord Kelvin, who said: "When you cannot
measure what you are speaking about, when you cannot express in numbers,
your knowledge is of a meagre and unsatisfactory kind; it may be the
beginning of knowledge, but you have scarcely in your thoughts advanced
to the stage of a science, whatever the matter be." This simple
statement sums up the aims, objectives and hopefully the achievements of
this conference. To discuss and disseminate the current knowledge on
non-metallic materials in order that realistic predictions of in-service
performance may be made.