序号

serial number

 检测项目

Test Item

检测设备及方法

Testing equipment

and methods

单位

unit standard

of measurement

技术指标

Technical

Specification

缺陷类型

Defect type

1

外观

outward appearance

目测

estimate range

by-eye

白色粉末，颜色一致，粉体无硬块，无异物

White powder, uniform color, powder without lumps, no foreign matter

Major

2

晶型

Crystalline form

XRD

α

Critical

3

纯度

degree of purity

ICP

%

≥99.00

Critical

4

粒度

Grit

D10

激光粒度仪

Laser Particle sizer

μm

2.30-2.50

Critical

D50

8.50-9.50

D90

≤25.00

5

H₂O

电子天平烘箱110℃

Electronic Balance Oven110℃

%

 ≤0.15

 Ref.

6

PH值

PH计

PHcompute

 7-10

Major

7

BET

比表面测试仪

Specific surface tester

m²/g

5-7

Common

8

松装密度

Bulk density

松装密度仪

Loose densimeter

g/cm³

0.90-1.2

Minor

9

杂质含量

Impurity content

Fe

ICP-AES

ppm

≤140

Common

Si

≤200

Common

Na

≤600

Common