GB/T 17616-1998
Replaced
GB/T 223.37-2020
Active
National standards
GB/T 223.37-2020 Iron,steel and alloy—Determination of nitrogen content—Indophenol blue spectrophotometric method after distillation separation
GB/T 223.37-2020 Iron,steel and alloy—Determination of nitrogen content—Indophenol blue spectrophotometric method after distillation separation
Basic Information
Standard Code:
GB/T 223.37-2020
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:
2020-06-02
Implement Date:
2020-12-01
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:
14 pages
Scope
GB/T 223的本部分规定了用蒸馏分离靛酚蓝分光光度法测定钢铁及合金中氮含量的方法。本部分适用于低合金钢中质量分数在0.000 6%~0.050%范围内和高合金钢中质量分数在0.010%~0.050%范围内氮含量的测定。本部分不适用于含氮化硅或硅含量超过0.6%的钢铁及合金中氮含量的测定。
Development Information
Drafting Units:
钢研纳克检测技术股份有限公司、钢铁研究总院、武汉钢铁有限公司、山东省冶金科学研究院有限公司
Drafting Persons:
李杰、刘庆斌、余卫华、张莉、孙晓飞、罗倩华、侯艳霞
Replace the following standards
Referenced Standards
ISO 648
ISO 1042
ISO 3696
ISO 14284
Adopt standards
ISO 4945:2018
Related Standards
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
GB/T 18255-2000
Replaced
GB/T 18255-2000 Coking viscous oil products—Determination of distillation range
GB/T 4223-2004
Replaced
GB/T 4223-2004 Iron and steel scraps
GB/T 20066-2006
Active
GB/T 20066-2006 Steel and iron—Sampling and preparation of samples for the determination of chemical composition
GB/T 11261-2006
Active