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序號

serial number

檢測項目

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

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

%

≥99.92

Critical

4

原晶粒度

Primary

grain size

D10

激光粒度儀

Laser Particle sizer

μm

0.80-0.90

Critical

D50

2.80-3.20

D90

≤7.00

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

0.6-0.8

Common

8

松裝密度

Bulk density

松裝密度儀

Loose densimeter

g/cm³

1.0-1.2

Common

9

雜質(zhì)含量

Impurity content

Fe

ICP-AES

ppm

≤140

Common

Si

≤200

Common

Na

≤300

Major

微量元素

含量

Micronutrient

Zn

ICP-AES

ppm

≤1

Major

Ca

≤5

Common

Mg

≤3

Common

K

≤10

Common

備注

1、粒度檢測因設(shè)備不同，數(shù)據(jù)有差別。The data of particle size testing vary with different equipment.

2、氧化鋁主要雜質(zhì)用ICP分析檢測。The main impurity of alumina was detected by ICP.

3、其余指標因檢測方法不同而異。The other indexes varied with different detection methods.