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序號

serial number

 檢測項(xiàng)目

Test Item

檢測設(shè)備及方法

Testing equipment

and methods

單位

unit standard

of measurement

技術(shù)指標(biāo)

Technical

Specification

缺陷類型

Defect type

1

外觀

outward appearance

目測

estimate range

by-eye

白色粉末，顏色一致，粉體無硬塊，無異物

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

Major

2

晶型

Crystalline form

XRD

α

Critical

3

純度

degree of purity

ICP

%

≥99.00

Critical

4

粒度

Grit

D10

激光粒度儀

Laser Particle sizer

μm

3.00-3.50

Critical

D50

14.50-17.50

D90

≤75.00

5

H₂O

電子天平烘箱110℃

Electronic Balance Oven110℃

%

 ≤0.15

Ref.

6

PH值

PH計

PHcompute

7-10

Major

7

BET

比表面測試儀

Specific surface tester

m²/g

0.4-0.6

Common

8

松裝密度

Bulk density

松裝密度儀

Loose densimeter

g/cm³

1.0-1.4

Common

9

雜質(zhì)含量

Impurity content

Fe

ICP-AES

ppm

≤140

Common

Si

≤200

Common

Na

≤600

Common