| Type of Sample / Test | Test Description | Standard | HOKLAS Accreditation |
| Carriageways | Surface regularity of carriageways (by rolling straightedge method) | Highways Department (Research and Development Division) Guidance Notes on Road Testing - RD/GN/009 Sep 1989
General Specification for Civil Engineering Works (2006) Vol. 1 App. 10.55 | Yes |
| Carriageways | Surface r egularity of carriageways
(by 3 meter straightedge method) | General Specification for Civil Engineering Works (2006) Vol. 1 App. 10.55 | Yes |
| Carriageways | Thickness of road marking
(by micrometer method) | BS 3262 : Part 3 : 1989 (Amd. 8785 & 10205) App. B in conjunction with the following specification ( General Specification for Civil Engineering Works
(2006) Vol. 1 Cl. 12.34 (3) | Yes |
| Road surfaces | Skid resistance of road surface using a portable pendulum tester | Highways Department (Research and Development Division) Guidance Notes on Road testing - RD/GN/009 Sep 1989 | Yes |
| Road surfaces | Skid resistance performance of road markings using a portable skid resistance tester | BS EN 1436 : 1998 Annex D
BS EN 1436 : 2007 + A1: 2008 Annex D | Yes |
| Road surfaces | Texture depth of carriageways | Highways Department (Research and Development Division) Guidance Notes on Road testing RD/GN/009 Sep 1989
Hong Kong Housing Authority specification Library (2000) RAP 1.T710.3 1.T720.3, RAP 2.T910.3 2.T1010.3
General Specification for Civil Engineering Works (2006) Vol . 1 App 10.1 | Yes |
| Road surfaces | Luminance coefficient under diffuse illumination (Qd) and retro reflected luminance (RL ) of road markings | BS EN 1436 : 2007(E) Annex A & B excluding Annex B.7 | Yes |
| Road surfaces | Permeability of friction coarse materials | General Specification for Civil Engineering Works (2006) Vol. 1 App. 9. 1 | Yes |
