AASHTO - American Association of State Highway and Transportation Officials
Latest
PP 64-2011
Scope
This standard covers the determination of aggregate source and source blend shape characteristics using gradation analysis and shape properties determined by means of digital image analysis. This standard may involve hazardous materials@ operations@ and equipment. This standard does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
PP 64-2011 history
2011PP 64-2011 Standard Practice for Determining Aggregate Source Shape Values from Digital Image Analysis Shape Properties
2010PP 64-2010 Standard Practice for Determining Aggregate Source Shape Values from DIgital image Analysis Shape Properties (Revision 1)