CEMENT SAMPLER
IS : 7535 - 1986

This is a brass tube approximately 53cm long and 2.8cm I.D. with a wooden handle. Total length aproximately 73cm. The tube has the sharp angular with conveniently pierces cement bags. An air hole of approximately 3mm dia is drilled on the tube near handle. Total sample collected at one time is 300cm 3 approximatedly.

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BLAINE'S AIR PERMEABILITY APPRATUS
IS : 4031,5516,1727 AND 4828, ASTM C-204, BS : 4359 PART II

The appratus 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.
Specifications : The appratus 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 bottole of 100cc dibutyiphthalate liquid.
Spares and Accessories : Punch to cut filter paper discs.Non-performed disc. Suction bulb.

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LEA AND NURSE AIR PERMEABILITY APPRATUS
IS : 5536, 8425,   BS : 12, 1370, 146 & 915.

The meatheod and results obtained from this appratus depend upon the rate at which air flows under a given pressure gradient through a bed powder of known dinsity and voids content, in order to dtermine the surface area of the indivisual particles.
Specifications : The complete equipment comprises of one air permeability cell lea and nurse type for areas 500 to 10000 sq.cm/gm. complete with perfotated plate one capillary tube, one plunger for compaction of sample and a wooden case.
Accessiors : Air source, comprising one pressure chamber fitted with a value, regulator, connecting tube, a toot pump and two drying towers. Manometer liquid in 500ml bottles.

AIR PERMEABILITY APPRATUS(RIGDEN TYPE)
IS : 8425, BS : 4352 PART-II, BS : 12,146, 915, 1370,4027, 4246 & 4248

Comprises one air permeability cell of range 500 to 10000 sq.cm/gm. The cell is complete with a perforated disc and a compacting plunger. The instrument is supplied with 'U'. Tube manometer having an isolation tap assembly and a suction blub., This appratus is mounted in a woolen cabinet.

VICAT NEEDLE APPRATUS
IS : 4031, 2645, 2542, (PART-i ), 1727, 5513 & 712. BS : 12, 146, 915, 1370, 4027, 4246, 4248. AASHO - T 129, E 131.

This instrument is used for determining the normal consistancy and settings times of cement and 'A' class limes.
Specifications : The appratus consists of of a metallica frame bearing a freely mocable rod with a cap at top, one vicat mould, split type and glass base plate and one set of needles one each initial needle, final needle and consistancy plunger.

VICAT NEEDLE APPRATUS WITH DASHPOT

Same as above but in addition is fitted with a dash pot which facilites gentle lovering of the needles.
Accessories : Mild steel base plate 5inches x 5inches.Fulcrum muld, brass, 70mm I.D base dia x 60mm I.D> top dia, 40mm height.
Note : 1) Normally set of needles and mould which meet IS requirnments as per IS.5513 are supplied. Whilw ordering please specify the specifications code of the instrument required.
2) vicat needle appratus for determining consistancy 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.

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