We need to match the test reporting conventions with the material tests based on common practices:
- (P) Reported as ratio typically corresponds to Specific gravity of bitumen (VI), as specific gravity is expressed as a ratio of the density of the material to the density of water.
- (Q) Reported as percentage commonly corresponds to Softening point of bitumen (II), which is typically reported in percentage terms during the testing process.
- (R) Reported in temperature corresponds to Flash point of bitumen (IV) or Softening point of bitumen (II), as both involve temperature-dependent testing.
- (S) Reported in length is related to the Thin film oven test (VII), as it often measures the length of the residue after testing.