2003BS EN 13357:2003 Methods of test for petroleum and its products - BS 2000-502: Bitumen and bituminous binders - Determination of the efflux time of petroleum cut-back and fluxed bitumens
2003BS EN 13357:2002 Methods of test for petroleum and its products BS 2000-502: Bitumen and bituminous binders - Determination of the efflux time of petroleum cut-back and fluxed bitumens