And I doubt you will find anything really specific - while there are some general tendencies, there are plenty of minute details in the composition/production methods which have a serious impact on the properties of the final material. The only sure way is to make an extended test. My bet is producer did such test and classified the material as "good enough" according to some industry (or internal) standard, but that's definitely out of my area of expertise.
As I wrote: after just four days I wouldn't care. Several months could leave a trace.