GB/T 212-2001 煤的工业分析方法

ICS73-040

D21

中华人民共和国国家标准

GB/T212-2001

代替GB/T212-1991

煤的工业分析方法

Proximateanalysisofcoal

(ISO11722:1999,Solidmineralfuels-Hardcoal-Determinationofmositure

inthegeneralanalysistestsamplebydryinginnitrogen,eqv)

(ISO1171:1997,Solidmineralfuels-Determinationofashcontent,eqv)

(ISO562:1998,Hardcoalandcoke-Determinationofvolatilematter,eqv)

2001一11门2发布2002一08一01实施

中华人民共和国发布

国家质量监督检验检疫总局

cB/T212-2001

目次

前言.·m

1范围····················。，····。···········。···，···························。································。·······……1

2规范性引用文件··········‘····。·······················…·…，’’·····，········································…·…t

3水分的测定····‘·····‘···1

3.1方法A(通氮干燥法)···········································································，·.·······.·……1

3.2方法B(空气干燥法)·······················································································……2

3.3结果的计算，···········。··。·················。························································，，·······……2

3.4水分测定的精密度.·3

4灰分的测定··················································································，···················……3

4.1缓慢灰化法3

4.2快速灰化法.·4

4.3结果的计算.·一·4

4.4灰分测定的精密度···············，················································.·······.·...·.·.·……，..…5

5挥发分的测定··。··········································，·····················································……5

5.1方法提要·····································。·····‘，························································……5

5.2仪器、设备5

5.3分析步骤······。································。···························································……6

5.4焦渣特征分类················。················。············。····，·。··，·················，·····················……6

5.5结果的计算···························，，·····················································。········。······……6

5.6挥发分测定的精密度··················。·····················。。···········································…·…。7

6固定碳的计算···········。·····。···，·········。。··。············。····························，·，···················……7

7空气干燥基挥发分换算成干燥无灰基挥发分及干燥无矿物质基挥发分·······。····················一·7

7.1干燥无灰基挥发分·········································································。·····.····…·…，.…7

7.2干燥无矿物质基挥发分·7

附录A(规范性附录)快速灰分测定仪·····。···················································……·‘“二。‘··‘‘9

GB/e212-2001

前言

本标准对应于下列国际标准，一致性程度为修改采用(等效):ISO11722:1999《固体燃料—硬煤

通氮干燥法测定一般分析试验煤样的水分》;ISO1171;1997((固体矿物燃料—灰分测定》;ISO562:

1998((硬煤和焦炭—挥发分的测定》。

主要差异如下:

—增加了水分测定的空气干燥法;

—增加了灰分测定的快速灰化法;

—在挥发分测定程序中，规定回升温度和时间为:(90。士10)C,3min,

本标准代替GB/T212-1991煤《的工业分析方法》。

本标准与GB/T212-1991相比主要变化如下:

—删去了水分测定中的甲苯蒸馏法(1991年版的2.2);

—修改了挥发分结果的部分换算公式(1991年版的4.5,6;本版的5.5,7),

本标准的附录A为规范性附录。

本标准由中华人民共和国原煤炭工业局提出。

本标准由全国煤炭标准化技术委员会归口。

本标准起草单位:煤炭科学研究总院煤炭分析试验室、云南煤田地勘公司143队。

本标准主要起草人:林玉佳、陈科全、韩立亭。

本标准所代替标准的历次版本发布情况为:

—GB212-1963,GB212-1977,GB/T212-1991,

CB/C212-2001

煤的工业分析方法

范围

本标准规定了煤的水分、灰分和挥发分的测定方法和固定碳的计算方法。

本标准适用于褐煤、烟煤和无烟煤

2规范性引用文件

下列文件中的条款通过本标准的引用而成为本标准的条款。凡是注日期的引用文件，其随后所有的

修改单(不包括勘误的内容)或修订版均不适用于本标准，然而，鼓励根据本标准达成协议的各方研究是

否可使用这些文件的最新版本。凡是不注日期的引用文件，其最新版本适用于本标准。

GB/T218煤中碳酸盐二氧化碳含量的测定方法(eqvISO925)

GB/T7560煤中矿物质的测定方法(neqISO602)

3水分的测定

本标准规定了煤的两种水分测定方法。其中方法A适用于所有煤种，方法B仅适用于烟煤和无

烟煤。

在仲裁分析中遇到有用空气干燥煤样水分进行校正以及基的换算时，应用方法A测定空气干燥煤

样的水分。

3.1方法A(通氮干燥法)

3.1.1方法提要

称取一定量的空气干燥煤样，置于105110c干燥箱中。在干燥氮气流中干燥到质量恒定。然后根

据煤样的质量损失计算出水分的质量分数

3.1.2试剂

3.1.2.1