Standard Penetrometer

As per IP 49, 50 & 167 specifications and also per is 1448 (p: 60) & (p: 93) this apparatus is used for penetration test on a wide variety of materials. It consists of a head support mounted on a vertical rod which can be adjusted for height. A rack and pinion and pointer assembly provides fine adjustment of needle tip to sample and in corporate a slipping clutch mechanism which make reading of penetration and subsequent resetting a sample and accurate operation. The dial graduate from 0-400 in one tenth millimeter sub-division. The instrument is supplied with two sample containers & 2 wts.

• Penetrometer apparatus with containers and weights having penetration needle (Bitumen)

• Penetrometer apparatus with containers and weights having penetration CONE HOLLOW type (Grease)

• same as above – but with Geared arrangement for moving the arm with geared unit.

• Penetrometer with Brass Cone & Needle with DIGITAL TIMER DEVICE (Adjustable)

• --- same as above—but with geared arrangement for moving the arm with geared unit.

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 25ºC determines penetration for gradation.