GB/T 223.8-2025 Active National standards

GB/T 223.8-2025 Iron,steel and alloy—Determination of aluminium content—Titrimetric method and spectrophotometric method

GB/T 223.8-2025 Iron,steel and alloy—Determination of aluminium content—Titrimetric method and spectrophotometric method

Publish Date: 2025-08-29 Implement Date: 2026-03-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 223.8-2025

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Analysis methods for steel and iron alloys

ICS Name: Black metal comprehensive

Publish Date: 2025-08-29

Implement Date: 2026-03-01

Publisher: 国家市场监督管理总局、国家标准化管理委员会

Technical Committee: 全国钢标准化技术委员会(SAC/TC 183)

Pages: 24 pages

Scope

本文件描述了氟化钠分离-EDTA滴定法、铬天青S直接光度法和铜铁试剂分离-铬天青S分光光度法测定钢铁及合金中铝含量的方法。
本文件方法一为氟化钠分离-EDTA滴定法，适用于钢铁及合金中质量分数为0.50%～10.00%铝含
量的测定；方法二为铬天青S直接光度法，适用于钢铁及合金中质量分数为0.050%～1.00%酸溶铝含量的测定；方法三为铜铁试剂分离-铬天青S分光光度法，适用于钢铁及合金中质量分数为0.015%～0.50%铝含量的测定。

Development Information

Drafting Units:

钢研纳克江苏检测技术研究院有限公司、钢研纳克检测技术股份有限公司、宝武特种冶金有限公司、大冶特殊钢有限公司、马鞍山钢铁股份有限公司

Drafting Persons:

齐荣、张文华、罗倩华、马超、林伟、陈沛沛、乔丽丽、宋祖峰、赵洪月、孙晓飞、范小芬、郑欢

Word Count: 35 Thousand words Pages: 24 pages

Same series standard

GB/T 223.6-2025 Iron,steel and alloy—Determination of boron content—Neutralization titrimetric method and spectrophotometric method GB/T 223.11-2025 Iron, steel and alloy—Determination of chromium content—Titrimetric method and spectrophotometric method GB/T 223.13-2025 Iron,steel and alloy—Determination of vanadium content—Titrimetric method and spectrophotometric method

Replace the following standards

GB/T 223.8-2000 Methods for chemical analysis of iron,steel and alloy The sodium fluoride separation—EDTA titration method for the determination of aluminium content GB/T 223.9-2008 Iron,steel and alloy—Determination of aluminium content—Chrome azurol S photometric method

Referenced Standards

GB/T 6379.1-2004 Accuracy(trueness and precision)of measurement methods and results—Part 1:General principles and definitions GB/T 6379.2-2004 Accuracy(trueness and precision)of measurement methods and results—Part 2:Basic method for the determination of repeatability and reproducibility of a standard measurement method GB/T 6682-1992 Water for analytical laboratory use—Specification and test methods GB/T 6682-2008 Water for analytical laboratory use—Specification and test methods GB/T 7729-2021 Chemical analysis of metallurgical products—General rule for spectrophotometric methods GB/T 12805-1991 Laboratory glassware—Burettes GB/T 12805-2011 Laboratory glassware—Burettes GB/T 12806-1991 Laboratory glassware—One-mark volumetric flasks GB/T 12806-2011 Laboratory glassware—One-mark volumetric flasks GB/T 12808-1991 Laboratory glassware—One-mark pipettes GB/T 12808-2015 Laboratory glassware—One mark pipettes GB/T 20066-2006 Steel and iron—Sampling and preparation of samples for the determination of chemical composition

Related Standards

GB/T 17616-1998 Replaced

GB/T 17616-1998 Unified numbering system for designations of iron,steel and alloy

Publish Date: 1998-12-14

GB/T 5686.4-1998 Replaced

GB/T 5686.4-1998 Methods for chemical analysis of silicomanganese—The phosphomolybdenum blue phtometric method for the determination of phosphorus content

Publish Date: 1998-12-14

GB/T 18255-2000 Replaced

GB/T 18255-2000 Coking viscous oil products—Determination of distillation range

Publish Date: 2000-11-17

GB/T 4223-2004 Replaced

GB/T 4223-2004 Iron and steel scraps

Publish Date: 2004-05-20

GB/T 20066-2006 Active

GB/T 20066-2006 Steel and iron—Sampling and preparation of samples for the determination of chemical composition

Publish Date: 2006-02-05

GB/T 11261-2006 Active

GB/T 11261-2006 Steel and iron—Determination of oxygen content—The pulse heating inert gas fusion-infra-red absorption method

Publish Date: 2006-03-02