GB/T 4698.12-2017 in English

VALID

Methods for chemical analysis of titanium sponge, titanium and titanium alloys - Part 12: Determination of vanadium content - Ammonium ferrous sulfate titration and inductively coupled plasma atomic emission spectrometry

Issued on:2017-09-29
Implemented on:2018-04-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $160.00
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Standard No:	GB/T 4698.12-2017
Document status:	VALID
Title in English:	Methods for chemical analysis of titanium sponge, titanium and titanium alloys - Part 12: Determination of vanadium content - Ammonium ferrous sulfate titration and inductively coupled plasma atomic emission spectrometry
Title in Chinese:	海绵钛、钛及钛合金化学分析方法第12部分：钒量的测定硫酸亚铁铵滴定法和电感耦合等离子体原子发射光谱法
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2017-09-29
Implemented on:	2018-04-01
Superseding:	GB/T 4698.12-1996 Sponge titanium, titanium and titanium alloys - Determination of vanadium content-Ammonium ferrous sulfate titration method
ICS Classification:	77.120.50-Titanium and titanium alloys
Chinese Classification:	H14-Rare metals and their alloys analysis method
Professional Classification:	GB-National Standard
Related Keywords:	titanium sponge titanium alloys ferrous sulfate titration method ferrous sulfate titration determination methods determination
Related Topics:	atomic emission spectrometry gb4698.12 gb t4698.12 gb+t4698.12 Titanium Alloy Inductive Coupling GB/t 4698.12 gb/t4698.12-1996 Potentiometric Titration Titanium Ion Titration of titanium ions Titanium Ion Ammonium Sulfate Ammonium ion analysis method atomic range Titanium peak splitting Titanium ion analysis Chloride Titanium Titanium chloride ion Atomic Emission Inductively Coupled Plasma The relative atomic mass of titanium Standard Titanium Alloy Plasma Inductively Coupled Titanium Atomic Mass Titanium atomic weight Molecular weight of titanium Hydrated titanyl ion Ammonium ion analysis test method Titanium Molecular Weight Opposing atoms of titanium and vanadium GB/T 4698.12 GB/T 4698.12-1996 GB/T 4698.12-2017 Titanium and titanium alloys (chemical analysis method) Titanium Alloy Chemical Analysis Method Ferrous Ammonium Sulfate Volumetric Method for Determination of Vanadium Content Ferrous ion titration masking agent Chemical analysis methods for steel and alloys Ferrous ammonium sulfate titration Titanium alloy inductively coupled plasma Ferric ammonium sulfate indicating silver ion method Calcium ion titration analysis principle and determination method Method for testing iron ions on titanium head Titration method for ferrous ions Titanium alloy ion precipitation

《GB/T 4698.12-2017海绵钛、钛及钛合金化学分析方法第12部分：钒量的测定硫酸亚铁铵滴定法和电感耦合等离子体原子发射光谱法》由TC243（全国有色金属标准化技术委员会）归口，TC243SC3（全国有色金属标准化技术委员会稀有金属分会）执行，主管部门为中国有色金属工业协会。

Introduction

1. Standard Overview

GB/T 4698.12—2017 is a national standard of the People's Republic of China, which specifies the determination method of vanadium content in titanium sponge, titanium and titanium alloys. This standard replaces the previous GB/T 4698.12—1996 version and expands the determination scope and method.

2. Background of Standard Formulation and Analysis of Technological Evolution

Vanadium is an important element in titanium alloys, and its content directly affects the performance of the material. With the expansion of the application fields of titanium and titanium alloys, the demand for accurate determination of vanadium content is increasing. The revision of this standard mainly focuses on the following aspects:

The determination range of ammonium ferrous sulfate titration method has been expanded to 1.00%~25.00%
Inductively coupled plasma atomic emission spectrometry (ICP-AES) has been added
Sample preparation and precision requirements have been optimized

3. Comparative analysis of determination methods

Determination method	Scope of application	Advantages	Disadvantages
Ammonium ferrous sulfate titration method	1.00%~25.00%	Easy to operate and low cost	Limited sensitivity
Inductively coupled plasma atomic emission spectrometry (ICP-AES)	0.010%~15.00%	High sensitivity and good accuracy	Complex equipment and high cost

4. Practical application case analysis

A titanium alloy factory used this standard to determine the vanadium content of a batch of titanium sponge, and compared the two methods of ammonium ferrous sulfate titration and ICP-AES:

Sample mass: 0.50g (vanadium content is about 2%)
Titration result: 1.98%
ICP-AES result: 1.96%
Relative error: 0.85%

More samples: NB/T 47013.2-2015 QC/T 942-2021 DL/T 368-2010

Sample only — not a preview of GB/T 4698.12-2017

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