指標名稱/ Item
|
優級品/ Top Grade
|
一級品/ First Grade
|
合格品/ Qualified Grade
|
外觀/Appearance
|
淡黃色或灰白色粉末/Light yellow or Grayish-white powder
|
||
初熔點(℃)/Melting point(℃) ≥
|
173.0
|
171.0
|
170.0
|
加熱減量/ Heating loss % ≤
|
0.30
|
0.40
|
0.50
|
灰分/ Ash % ≤
|
0.30
|
0.30
|
0.30
|
篩余物(150um) / Residues (150um) % ≤
|
0.00
|
0.10
|
0.10
|