ISO 11433:2020 镍合金 钛含量的测定 二安替比林基甲烷分子吸收法

标准编号：ISO 11433:2020

中文名称：镍合金 钛含量的测定 二安替比林基甲烷分子吸收法

英文名称：Nickel alloys — Determination of titanium content — Diantipyrylmethane molecular absorption method

发布日期：2020-11

标准范围

本文件规定了测定镍合金中钛含量的分子吸收分光光度法。该方法适用于0.3%（质量分数）至5.0%（质量分数）之间的钛含量。如果合金中存在钼，则会导致报告的钛值出现高偏差，每1,0%钼的钛含量为0001%。注1:有证据表明，当钛含量降至0.05%（质量分数）时，可以扩展该方法。注2:通用方法中的修改允许测定含钨和/或钽合金中的钛。

This document specifies a molecular absorption spectrophotometric method for the determination of titanium content in nickel alloys.The method is applicable to titanium contents between 0,3 % (mass fraction) and 5,0 % (mass fraction).Molybdenum, if present in the alloy, can cause a high bias in the reported titanium value to the extent of 0,001 % Ti for every 1,0 % Mo.NOTE 1 Evidence exists that extension of this method is possible for titanium contents down to 0,05 % (mass fraction).NOTE 2 Modifications in the general method allow the determination of titanium in alloys containing tungsten and/or tantalum.

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