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PG Bitumen, or Performance Grade Bitumen, is a performance-based system for classifying asphalt binders according to their expected behavior at high and low pavement temperatures. This article explains how grades such as PG 64-22 are interpreted, how PG Bitumen differs from penetration-grade and polymer-modified bitumen, where it is commonly used, which laboratory tests support performance grading, what affects its price, and what information buyers should provide before ordering.

Proper bitumen sampling is essential for reliable quality-control results because laboratory testing is only meaningful when the sample accurately represents the storage tank, tanker, transfer line, or shipment. Clean and dry containers, correct sampling location and timing, temperature and batch records, labeling, sealing, retained samples, and chain of custody are key requirements. This article explains bitumen sampling from tanks, tankers, and transfer lines, common sampling errors, sample handling, and the main controls required before laboratory testing.

Proper bitumen storage and transportation are essential for preserving product quality from production to final delivery. Excessive heating, prolonged storage at high temperature, contaminated tanks, water ingress, grade mixing, and poor sampling can affect viscosity, stiffness, uniformity, safety, and final performance. This article explains how to control bitumen storage temperature, prevent contamination and grade mixing, manage transport by tanker, review technical documents, and protect product quality before loading and upon delivery.