| ≥1 piece |
(1) Grade A: 100% pure
a) Nature white, no obvious spot
b) Moisture: less than 6%
c) Maximum granule diameter: 0.154mm
d) SO2 content: 50ppm (max.)
e) bacteria: less than 10000/g
(2) Grade B: 100% pure
a) Yellowish, no obvious spot
b) Moisture: less than 6%
c) Maximum granule diameter: 0.154mm
d) SO2 content: 50ppm (max.)
e) bacteria: less than 10000/g