标准编号：ISO 17942:2014
中文名称：精细陶瓷（高级陶瓷、高级工业陶瓷） 氮化硼粉末化学分析方法
英文名称：Fine ceramics (advanced ceramics, advanced technical ceramics) — Methods for chemical analysis of boron nitride powders
发布日期：2014-08
标准范围
This International Standard specifies the methods for the chemical analysis of fine boron nitridepowders used as the raw material for fine ceramics.This International Standard stipulates the analysis methods of total boron, free boron, total nitrogen,aluminium, cadmium, calcium, chromium, cobalt, copper, iron, lead, magnesium, manganese, nickel,potassium, silicon, sodium, titanium, vanadium, zinc, carbon, and oxygen in boron nitride powders forfine ceramics. Total boron is determined by using either a fusion–titration method or a fusion–inductivelycoupled plasma-optical emission spectrometry (ICP-OES). Free boron is determined by using either anacid digestion–ICP-OES or a methanol extraction–ICP-OES. If necessary, the boron amount which arisesfrom the hydrolysis of boron nitride during sample treatment is corrected using spectrophotometry. Totalnitrogen is determined by using either an acid pressure decomposition–distillation separation–titrationmethod or an inert gas fusion–thermal conductivity method. Silicon is determined by using a fusion– ICP-OES. Aluminium, cadmium, calcium, chromium, cobalt, copper, iron, lead, magnesium, manganese,nickel, titanium, vanadium, zinc are determined by using an acid pressure decomposition–ICP-OES ora fusion–ICP-OES. Sodium and potassium are determined by using atomic absorption spectrometry(AAS), flame emission spectrometry (FES), or ICP-OES following acid pressure decomposition. Carbon isdetermined by using a combustion–IR absorption spectrometry or a combustion–thermal conductivitymethod. Oxygen is determined by using an inert gas fusion–IR absorption spectrometry.
立即下载标准文件