钢铁及合金 铌含量的测定 PAR分光光度法（英文版）
Iron, steel and alloy—Determination of niobium content—PAR spectrophotometric method
标准状态
发布于：2026-08-28
实施于：2027-03-01
废止
基本信息
GB/T 223.93-2026
即将实施
2026-08-28
2027-03-01
China Iron and Steel Association
State Administration for Market Regulation and Standardization Administration of China
National Technical Committee 183 on Steel of Standardization Administration of China (SAC/TC 183)
China Iron and Steel Association
钢研纳克检测技术股份有限公司; 钢铁研究总院有限公司
TANG Benling, LI Yahua, FAN Xiaofen, MENG Wei
标准简介
This document describes a method for the determination of niobium content in iron, steel and alloys by PAR spectrophotometry. This document is applicable to the determination of niobium mass fractions of 0.50 % to 6.0 % in iron, steel and alloys. This document is not applicable to the determination of niobium content in iron, steel and alloys with a tantalum content greater than 0.01 %.
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