STANDARD: GB 10500-2009

SPECIFICATION

ANALYSIS ITEM

INDEXES

STANDARD VALUE

APPEARANCE

YELLOW FLAKE

RED FLAKE

NA2S

60.0% Min.

60.0% Min.

IRON (Fe)

0.005% Max.

0.003%-0.03%

WATER INSOLUBLE

0.05% Max.

0.15% -0.20%