GB/T 6730.39-2017 in English
VALIDIron ores--Determination of nickle content--Dimetylglyoxime spectrophotometric method
- Issued on:2017-09-07
- Implemented on:2018-06-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$156.00
《GB/T 6730.39-2017铁矿石 镍含量的测定 丁二酮肟分光光度法》由TC317（全国铁矿石与直接还原铁标准化技术委员会）归口，主管部门为中国钢铁工业协会。
Introduction
Determination of nickel content in iron ore - dimethylglyoxime spectrophotometry
| Dimensions of the standard framework | Requirements of the new standard | Comparison of the old standard |
|---|---|---|
| Scope | Applicable to the determination of nickel content in iron ore, iron concentrate, sintered ore and pelletized ore, with a determination range of 0.0050% to 0.10%. | The original standard range is the same, but specific requirements for sample preparation have been added. |
| Reagents and instruments | Requirements for analytical reagents have been added, and the technical parameters of key instruments such as spectrophotometers and muffle furnaces have been clarified. | The old standard did not specify the reagent purity requirements, and the instrument requirements were relatively general. |
| Test steps | New requirements for blank tests and verification tests were added, and the specific operating steps for sample decomposition, separation and color development, and measurement were detailed. | The old standard did not specify the independent determination requirements, and the steps were relatively simple. |
Explanation of professional terms and practical application cases
Dimethylglyoxime: In alkaline media, it forms a stable wine-red complex with nickel ions, which is suitable for spectrophotometric determination.
Spectrophotometer: A key instrument used to measure the absorbance of a solution at a specific wavelength to calculate the nickel content.
Independent determination: Refers to two or more repeated determinations performed in the same laboratory by the same operator using the same equipment and methods, and the results do not affect each other.
Loading PDF document...
Error loading PDF. Please make sure the file is valid and try again.
We also recommend
-
GB/T 6730.88-2024 in English
Iron ores—Determination of chlorine content—X-ray fluorescence spectrometric method
2024-06-29 -
GB/Z 197-2026 in English
Iron ores—Determination of various elements—Fusion preparation method of X-ray fluorescence spectrometry
2026-07-30 -
GB/T 6730.1-2016 in English
Iron ores―Preparation of predried test samples for chemical analysis
2016-02-24 -
GB/T 31923.1-2015 in English
Iron ores for blast furnace feedstocks―Determination of low-temperature reduction-disintegration indices by static method―Part 1:Reduction with CO,CO2,H2 and N2
2015-09-11 -
GB/T 32545-2016 in English
Division of production grade for iron ores
2016-02-24 -
GB/T 24190-2009 in English
Iron ores—Determination of combined water—Karl Fischer method
2009-07-08 -
GB/T 29652-2013 in English
Direct reduced iron—Determination of carbon and sulfur—High frequency combustion with infrared absorption method
2013-09-06 -
GB/T 20565-2022 in English
Iron ores and direct reduced iron—Vocabulary
2022-04-15
