ASFALTOS: METODO DE ENSAYE DE PENETRACION (LNV 34) - Referencias

Son aplicables las siguientes normas ASTM:
- Norma ASTM C 670 Practice for Preparing Precision and Bias Statements for Test Methods for Construction Materials.
- Norma ASTM D 36 Test Method for Softening Point of Ligante asfáltico ( Ring-and-Ball Apparatus ).
- Norma ASTM E1 Specification for ASTM Thermometers.
- Norma ASTM E 77 Test Method for Inspection and Verification of Liquid-in-Glass Thermometers.