Over the years, I have read a number of UL standards. What is interesting is that every single one, where a particular construction or material is considered "normal" or "typical" will have a provision allowing for the evaluation of alternative materials.
Often the standards will define what strength, etc., is required. So, as an example, one might evaluate conduit made of something besides steel, or pressure tanks in some shape other than ASME profiles.
Which brings us to other standards... for example, do you know the 'real' difference between RMC ans Sched 40 galvanised water pipe? (See the ASTM standards to find out).
IF I were to0 manufacture something to meet a need that was not properly addressed by something readily available, I would make it a point to find out what criteria the "usual" stuff met, and honestly ask myself "would my widget pass these tests?"