In this model the GSM Tester directly gives GSM (grams per sq. meter) weight of the sample. Condition the specimen as per SCAN P-2, The conditioning atmosphere in testing paper and board are Temp.23 +1 C relative humidity 50% +2% A Stainless steel rectangular template size 20x25 cm OR 10X10 cm to cut the paper sample. Place the sample in sample basket on the scale. Read the basis is weight/substance on scale.Specification : Mode A Weight up to 300gm Mode B Scale 10 x 10 Mode C Scale 20 x 25 Mode D Scale 25 x