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Chinese Ministry of Transportation Standards (JTG F40-2004):
Applies to all roads, according to the climate and the different levels of the partition (A, B, C grade) choose to use.

  • 70-A (60-80):

Characteristic

70-A

Test Method

Penetration Degree (25°C), 0.1 mm

60~80

GB/T 4509

Penetration Index (PI)

-1.5~+1.0

GB/T 4509

Softening Point, °C

>46

GB/T 4507

Dynamic Viscosity (60°C), Pa.s

>180

SH/T 0557

Ductility (10°C), cm

>20

GB/T 4508

Ductility (15°C), cm

>100

GB/T 4508

Solubility, %

>99.5

GB/T 11148

Specific Gravity (15/15°C)

 report  GB/T 8928

Specific Gravity (20/20°C)

 report  GB/T 8928

Wax Content, %

 <2.2  SH/T 0425

Flash point, °C

 >260  GB/T 267

Membrane Oven Experiment

Mass Loss, wt%

<±0.8

GB/T 5304

Residue Penetration Ratio,%

>61

GB/T 4509

Residue Ductility (10°C)

 >6  GB/T 4508

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