Item

LPG standard

Test method

Summer

Winter

Composition

(mol %)

C3-Hydrocarbon

Max. 10

15 ~ 35

C4-Hydrocarbon

Min. 85

Min. 60

KS M ISO 7941

1,3-Butadiene

Max. 0.5

Sulfur content (mg/kg)

Max. 40

ASTM D 6667

Vapor pressure (40˚C, kPa)

Max. 1.27

KS M ISO 4256

Density (15˚C, kg/m3)

500 ~ 620

KS M 2150

Residue (ml)

Max. 0.05

ASTM D 2158

Copper strip corrosion (40˚C, 1 h)

Min. 1

KS M 6251