3 Determine the mass — to the nearest 0.1g一to the nearest 0,01 g; or 一to the nearest 0,001 g (mean mass of at least three specimens). a)1120.2g b)95.67g c)2531g4 Calculate the mass per unit area (g/m2) of the specimen from its mass, length and width. a) b) c)5 If so required, or agreed upon, correct for the non-fibrous material content. a) b) c)