Not quite sure what your point is here, but yes its still asbestos and still needs to be treated with caution, hence the safety gear i used doing mine. The type isnt just about weight its about the colour type. White being the lowest risk as far as I found at the time.At least 10% of that weight was asbestos. They may be lower risk that other forms of asbestos product but they have a good amount of asbestos in them.