GB/T 4509-1998
Bitumen--Determination of penetration
2011-05
- Standard No.
- GB/T 4509-1998
- Language
- Chinese
- Release Date
- 1998
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Replace By
- GB/T 4509-2010
- Lastest
- GB/T 4509-2010
- Scope
- This standard applies to the determination of the penetration of solid and semi-solid asphalt materials with a penetration of less than 350. This standard is also applicable to the determination of the penetration of asphalt materials with a penetration of 350-500. For such asphalt, it is necessary to use a sample dish with a depth of 60mm and a sample loading capacity of no more than 135mL to measure the penetration, or to obtain the penetration measured under a load of 50g multiplied by the square root of 2.
GB/T 4509-1998 history
- 2011 GB/T 4509-2010 Standard test method for penetration of bitumen
- 1998 GB/T 4509-1998 Bitumen--Determination of penetration
- 1984 GB/T 4509-1984 Test method for needle penetration of petroleum bitumens