ASTM D3710ASTM D3710ASTM D3710 定量校准混标

N-L-001N-L-001氮标样 – 轻油

S-H-001S-H-001硫标样 – 重油(ppm)

S-L-001S-L-001硫标样 – 轻油

XF-H-001XF-H-001X荧光硫标样 – 重油(ppm)

XF-L-001XF-L-001X荧光硫标样 – 轻油(ppm)

ASTM D3710ASTM D3710ASTM D3710 定性校准混标