Standard No.:	GB/T 4372.2-2014
English Name:	Methods for chemical analysis of zinc oxide produced by direct process―Part 2:Determination of lead oxide content―Flame atomic absorption spectrometry method
Chinese Name:	直接法氧化锌化学分析方法 第2部分：氧化铅量的测定 火焰原子吸收光谱法
Chinese Classification:	H13    Heavy metals and their alloys analysis method
Professional Classification:	GB    National Standard
ICS Classification:	77.120.60 77.120.60    Lead, zinc, tin and their alloys 77.120.60
Source Content Issued by:	AQSIQ; SAC
Issued on:	2014-12-05
Implemented on:	2015-8-1
Status:	valid
Superseding:	GB/T 4372.2-2001 Methods for chemical analysis of zinc oxide produced by direct process-Determination of lead oxide content-Atomic absorption spectroxmetry method
Target Language:	English
File Format:	PDF
Word Count:	3500 words
Translation Price(USD):	90.0
Delivery:	via email in 1 business day

Methods for chemical analysis of zinc oxide produced by direct process - Part 2: Determination of lead oxide content - Flame atomic absorption spectrometry method 1 Scope This part of GB/T 4372 specifies the methods for determining the lead oxide content of zinc oxide produced by direct process. This part is applicable to the determination of lead oxide content of zinc oxide produced by direct process, with the determination range of 0.010%~1.00%. 2 Method summary Dissolve the specimen with nitric acid, apply air-acetylene flame in dilute nitric acid medium, and measure the absorbance of lead at the wavelength of 283.3 nm of the atomic absorption spectrophotometer, and then calculate the lead oxide content by the standard curve method. 3 Reagents Unless otherwise specified, only the recognized analytical reagents and distilled water or deionized water or water with equivalent purity shall be used during the analysis.

Foreword i 1 Scope 2 Method summary 3 Reagents 4 Apparatus 5 Specimens 6 Analysis procedures 7 Calculation of analysis results 8 Precision 9 Test report