Polished Stone Value (PSV) (BS 812: Part 3)

Polished Stone Value (PSV) (BS 812: Part 3)  1.0 Introduction The Polished Stone Value (BS 812: Part 3) Gives A Measure Of Resistance Of Road Stone To The Polishing Action Of The Pneumatic Tire. Under Conditions Similar To Those Occurring On The Surface Of The Road Where The Surface Of The Road Consists Largely Of Road Stone, The State Of Polish Of The Sample Will Be One Of The Major Factors Affecting The Resistance Of The Surface To Skidding....

FLASH AND FIRE POINT TEST (ASTM D92)

FLASH AND FIRE POINT TEST (ASTM D92) 1.    Introduction The flash point of a volatile liquid is the lowest temperature at which it can vaporize to form an ignitable mixture in air. Measuring a liquid's flash point requires an ignition source. At the flash point, the vapor may cease to burn when the source of ignition is removed. The flash point is not to be confused with the auto ignition temperature,...