BS ISO 4942:2016规定了N-苯甲酰苯基羟胺（N-BPHA）的分光光度测定方法 钢和铸铁中钒的测定。本文件适用于钒含量在0005%和0.50%（质量分数）之间的情况。交叉引用:ISO 648ISO 1042ISO 3696ISO 14284ISO 5725:1986购买本文件时提供的所有现行修订版均包含在购买本文件中。

BS ISO 4942:2016 specifies an N-benzoylphenylhydroxylamine (N-BPHA) spectrophotometric method for the determination of vanadium in steels and cast irons.This document is applicable to vanadium contents between 0,005 % and 0,50 % (mass fraction).Cross References:ISO 648ISO 1042ISO 3696ISO 14284ISO 5725:1986All current amendments available at time of purchase are included with the purchase of this document.