A verified MS-26 PDF has exactly (including appendices and index). Any file with 280–310 pages is missing sections, particularly Appendix A (Volumetric Equations) or Appendix C (Superpave Gyratory Compaction Parameters).
To access a verified MS-26 PDF, you can visit the Asphalt Institute's official website ( www.asphaltinstitute.org ). They offer a range of publications, including the MS-26 manual, which can be purchased or downloaded in PDF format.