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Standard Penetro Meter


Standard Penetrometer SL-BT-004
ASTM D5, BS 2000
Used to determine grade of bitumen. The penetration tests
determine consistency of bitumen for the purpose of grading. Depth
in units 1/10 of millimeter to which a standard needle having a
standard weight will penetrate vertically in a duration of five seconds
at a temperature of 25°C determines penetration for gradation.
Specification : It consists of a vertical pillar mounted on a base
provided with leveling screws. The head, together with dial plunger
rod a cone (or needle) slides on a pillar and can be clamped at any
desired height. A rack and pinion and pointer assemble provides fine
adjustment of needle or cone tip to sample. It incorporates a clutch
mechanism. Which makes reading of penetration and subsequent
resetting a simple and accurate operation. The dial is graduated in
400 1/10 and the millimeter subdivisions and the needle pointer
against figures makes easy reading. Supplied with a bitumen
penetration needle, ring weight one each 50 gms. and 100 gms. two
sample containers.
Accessories: Penetration cone for empirical estimation of
penetration of lubricating grease, petroleum jelly etc. Balance fitted
with an under bench weighing facility can be fitted. The balance
supplied can also be used as a standard weighing device, thus providing a versatile and comprehensive weighing system in the
laboratory. (i) Cap. 5 Kg (5000gm) Accuracy 0.5 gm (500mg) (ii) Cap.
15kg (15000gms) Accuracy 1 gm (1000 mg)