JMT - 503
VICAT NEEDLE APPARATUS WITH DASHPOT
IS : 4031,5516,1727 AND 4828, ASTM C-204, BS : 4359 PART II
The apparatus is used for determining the fineness of cement in terms of specific surface expressed as total surface area in square centimeters per gram of cement. This is a variable flow type air permeameter.
The apparatus consists one each of permeability cell 12.5mm I.D., Manometer 'U' type mounted on stand with a built in a stop cock, perforated disk, plunger Rubber stopper, Rubber tube 30cm long. Packet of 12 filter paper discs and a bottle of 100cc dibutyiphthalate liquid. Spares and Accessories : Punch to cut filter paper discs. Non-performed disc. Suction bulb.
It is fitted with a dash pot which facilities gentle lovering of the needles.
Mild steel base plate 5inches x 5inches. Fulcrum mold, brass, 70mm I.D base dia x 60mm I.D> top dia, 40mm height.
Normally set of needles and mould which meet IS requirements as per IS.5513 are supplied. While ordering please specify the specifications code of the instrument required.
Vicat needle apparatus for determining consistency of Hydraulic cement, gypsum plaster, lime etc. as per ASTM C 187-58, c 472-62: c 110-58, IS 2542 (part-i) can be also supplied.