In different regions and countries, different Standards and Grading systems are used for determining the quality of petroleum bituminous Binders. The most recognized standards for petroleum bitumen are published by

• European Committee for Standardization (CEN)
• Deutsche Industrie Norm (DIN EN)
• Association Française de Normalisation (AFNOR – NF EN)
• BSI Standards - the UK's National Standards Body (NSB - BS EN)
• American Society for Testing and Materials (ASTM)
• American Association of State Highway and Transportation Officials (AASHTO)
• South African Standard Organization (SABS)
• Standards Australia (AS)

Most Commonly Used Bitumen Specifications

STANDARD PETROLEUM BITUMEN GRADES

• ASTM D 946 and AASHTO M 20 (Penetration @ 25°C)
• ASTM D 3381 and AASHTO M 226 (Viscosity @ 60°C)
• ASTM D 6373 and AASHTO M 320 (PG-Graded Binder)
• EN 12591 (Penetration @ 25°C) → NF EN; BS EN; DIN EN; etc.
• AS 2008 (Viscosity @ 60°C)
• SABS 307 (Penetration @ 25°C; Viscosity @ 60°C after RTFOT)
• IS 73 (India) changed in 2006 from PEN grades to VG Grades (based on Viscosity @ 60°C); however, CRMB modified bitumen is still graded based on penetration.

POLYMER MODIFIED BITUMEN

• ASTM D 5976; ASTM D 5840; ASTM D 5841 (based on polymer type; now outdated and not used in the USA, but still used in some developing countries)
• ASTM 6373 and AASHTO M 320 (PG-Graded Binder; applicable to Unmodified and Polymer Modified Bitumen)
• EN 14023 (Framework Standard for Polymer Modified Binder)
• AUSTROADS Framework Specifications (Australia)

BITUMEN EMULSIONS (ANIONIC; CATIONIC; UNMODIFIED; POLYMER MODIFIED)

• USA Anionic Emulsions: ASTM D 977 and AASHTO M 140
• USA Cationic Emulsions: ASTM D 2397 and AASHTO M 208; Polymer Modified Cationic Emulsion: AASHTO M 316
• Europe: Harmonized Framework Standard EN 13808 for Cationic Unmodified and Polymer Modified Emulsions; many different national
• Annexes.

(Note: Internationally there exist a very broad range of emulsion specifications; many of them are technically inaccurate and confusing.)

CUTBACK BITUMEN

• ASTM D 2026, D 2027 and D 2028 for Slow, Medium and Rapid Curing Cutback
• AASHTO M 81, M 82 for Rapid and Medium Curing Cutback
• EN 15522 Cutback and Fluxed Bituminous Binder

Oxidized bitumen

BS EN 13304:2009, Bitumen and bituminous binders — Framework for specification of oxidised bitumen.

BS group produce different grades of bitumen and you could check our bitumen products here.