Top Quality Heavy Duty Standard Penetrometer, Business,Industrial Instrument
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Top Quality Heavy Duty Standard Penetrometer, Business,Industrial Instrument
Standard penetrometer 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.