I wonder if anyone has done testing of sample for asbestos in NJ. How
expensive is it and reliable results are? I have vinyl tile floor in my
basement workshop and 40% of tiles peeled up or otherwise broke and I
concern about tiles contained asbestos. So I am thinking about
submitting a piece of a tile to an asbestos testing lab. Is it worth
doing? If asbestos is indeed found what's the best way to address the
problem? Cover entire workshop floor with modern vinyl tiles?

You should skip the testing, which costs money and creates legal
obligations for you that you don't need, and just assume that
as far as you're concerned, they're asbestos, and as far as
the state is concerned, the question never occurred to you.

I dunno how you go about getting the old tile up,
although Shovelling dry ice across the floor and
then whacking things with a mallet has been suggested,

but Afterwards, poured epoxy flooring will cover the remains
of the glue and be a fairly permanent encapulation.