I guess the Supervisor could ask, but not instruct, and up to you whether you follow their advice or not. It is up to the Contractor to make sure they are compliant with the Works Information, and as long as you think you don't need to do that test to comply then you could ignore.
That said - I would listen to the Supervisor and see why he thinks it should be done. You could raise an early warning to say you are not planning on doing it, but if they wanted to instruct it (and pay for it as a compensation event) you are at least giving them the opportunity - or even the chance for the PM to instruct if they believe it IS a requirement to meet the Works Information (which would not be a compensation event.
My advise is talk/listen/consider/action accordingly in that order.
That said - I would listen to the Supervisor and see why he thinks it should be done. You could raise an early warning to say you are not planning on doing it, but if they wanted to instruct it (and pay for it as a compensation event) you are at least giving them the opportunity - or even the chance for the PM to instruct if they believe it IS a requirement to meet the Works Information (which would not be a compensation event.
My advise is talk/listen/consider/action accordingly in that order.