ICS81.080

CCSQ40

中華人民共和國國家標準

GB/T5069—2024

代替GB/T5069—2015

鎂鋁系耐火材料化學分析方法

Chemicalanalysisofmagnesia?aluminarefractories

2024?08?23發(fā)布2025?03?01實施

國家市場監(jiān)督管理總局

國家標準化管理委員會發(fā)布

GB/T5069—2024

目次

前言··························································································································Ⅲ

引言··························································································································Ⅳ

1范圍·······················································································································1

2規(guī)范性引用文件········································································································1

3術(shù)語和定義··············································································································1

4儀器和設備··············································································································1

5試樣制備·················································································································2

6通則·······················································································································2

7灼燒減量的測定········································································································3

8二氧化硅的測定········································································································3

9氧化鋁的測定···········································································································7

10氧化鐵的測定········································································································11

11二氧化鈦的測定·····································································································13

12氧化鈣的測定········································································································16

13氧化鎂的測定········································································································21

14氧化鉀、氧化鈉的測定·····························································································25

15氧化錳的測定［w（MnO）≤0.5%］···············································································27

16PO≤3%28

五氧化二磷的測定［w（25）］············································································

17鎂砂中游離氧化鈣的測定·························································································30

18EDTA容量法測定氧化鋯（鉿）··················································································31

19硫酸亞鐵銨容量法測定三氧化二鉻·············································································31

20二氧化硅、氧化鋁、氧化鐵、氧化鈦、氧化鈣、氧化鉀、氧化鈉、氧化錳、五氧化二磷、氧化鋯、三氧化

二鉻的測定（電感耦合等離子體發(fā)射光譜法）·································································31

21試驗報告··············································································································33

附錄A（規(guī)范性）分析值驗收程序··················································································34

附錄B（資料性）電感耦合等離子發(fā)射光譜儀標準曲線·······················································35

Ⅰ

GB/T5069—2024

前言

本文件按照GB/T1.1—2020《標準化工作導則第1部分：標準化文件的結(jié)構(gòu)和起草規(guī)則》的規(guī)

定起草。

本文件代替GB/T5069—2015《鎂鋁系耐火材料化學分析方法》，與GB/T5069—2015相比，除結(jié)

構(gòu)調(diào)整和編輯性改動外，主要技術(shù)變化如下：

a）更改了要素“范圍”對測量含量范圍的規(guī)定，刪除了“表1測定范圍”（見第1章，2015年版的

第1章）；

b）增加了“術(shù)語和定義”一章（見第3章）；

c）增加了規(guī)范性引用文件“GB/T4513.2”（見5.1）；

d）更改了要素“二安替比林甲烷光度法”測定二氧化鈦的含量范圍（見11.1，2015年版的11.1）；

e）更改了要素“差減法”測定氧化鎂含量的計算方法（見13.3，2015年版的13.3）；

f）刪除了要素“火焰原子吸收法”分析結(jié)果中“高精度測量法”（見2015年版的14.1.6.2）；

g）刪除了要素“氧化錳的測定”分析結(jié)果中“高精度測量法”（見2015年版的15.6.2）；

h）更改了要素“五氧化二磷的測定”中的測定范圍（見第16章，2015年版的第16章）；

i）更改了要素“二氧化硅、氧化鋁、氧化鐵、氧化鈦、氧化鈣、氧化鉀、氧化鈉、氧化錳、五氧化二

磷、氧化鋯、三氧化二鉻的測定（電感耦合等離子體發(fā)射光譜法）”對測定含量范圍的規(guī)定，刪

除“（MO）≤15%”（見第20章，2015年版的第20章）；

wXY

j）更改了“附錄A”分析值驗收程序中分析結(jié)果取中位數(shù)時的規(guī)定（見附錄A，2015年版的附

錄A）。

請注意本文件的某些內(nèi)容可能涉及專利。本文件的發(fā)布機構(gòu)不承擔識別專利的責任。

本文件由全國耐火材料標準化技術(shù)委員會（SAC/TC193）提出并歸口。

本文件起草單位：中鋼集團洛陽耐火材料研究院有限公司、中冶武漢冶金建筑研究院有限公司、上

海利爾耐火材料有限公司、陽泉市綜合檢驗檢測中心、江蘇中磊節(jié)能科技發(fā)展有限公司、武漢如星科技

有限公司、遼寧中鎂控股股份有限公司。

本文件主要起草人：徐曉瑩、曹海潔、陳寧娜、李洪波、武文霞、彭西高、段雪珂、劉鵬程、曾靜、

雷小雨、李維鋒、張蕾、李向威、茆忠軍、敖平、江紅超、潘波、李勇偉、李衛(wèi)平、王曉利、王志彪、徐廣平、

侯沛東、王樹山。

本文件于1985年首次發(fā)布，2001年第一次修訂，2007年第二次修訂，2015年第三次修訂，本次為

第四次修訂。

Ⅲ

GB/T5069—2024

引言

隨著鎂鋁系耐火材料的發(fā)展，原化學分析方法標準已不能滿足應用要求，電感耦合等離子體發(fā)射

光譜（ICP?AES）可首選用于鎂鋁系耐火材料的化學分析，但由于ICP?AES設備價格昂貴、使用和維護

成本高、方法標準出現(xiàn)得晚等原因，在耐火材料行業(yè)的實驗室普及程度遠低于其他行業(yè)。分光光度計

操作程序簡單、性價比高，是耐火材料行業(yè)實驗室普及率高的常用分析儀器，尤其是針對鎂鋁系耐火材

料中高含量的五氧化二磷和二氧化鈦的測定。本次修訂目的主要是更改分光光度法測定五氧化二磷

和二安替比林甲烷光度法測定二氧化鈦的檢測范圍，并在第20章給出了ICP?AES測定方法，從而使

標準更加科學嚴謹、與時俱進，更好地服務于行業(yè)發(fā)展。

Ⅳ

GB/T5069—2024

鎂鋁系耐火材料化學分析方法

警告：使用本文件的人員應有正規(guī)實驗室工作的實踐經(jīng)驗，熟知強酸強堿的理化性能，樣品前處理

過程的高溫、強酸強堿都屬于危險源，工作人員需掌握其安全操作規(guī)程。本文件并未指出所有可能的

安全問題，使用者有責任采取適當?shù)陌踩徒】荡胧⒈ＷC符合國家有關(guān)法規(guī)規(guī)定的條件。

1范圍

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本文件描述了鎂鋁系耐火材料的灼燒減量（）、二氧化硅（2）、氧化鋁（23）等項目的化學

分析方法。

本文件適用于鎂鋁系耐火材料，如鎂（鋯）磚、鎂鋁（鋯）磚、鎂（鋁）尖晶石磚、鎂硅磚、鎂白云石（鋯）

磚等制品和鎂質(zhì)、尖