GB/T 16477.3-2010 English PDF

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GB/T 16477.3-2010: Chemical analysis methods of rare earth ferrosilicon alloy and rare earth ferrosilicon magnesium alloy -- Part 3: Determination of magnesia content -- Inductively coupled plasma atomic emission spectrometry
Status: Valid

GB/T 16477.3: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 16477.3-2010	139	Add to Cart	3 days	Chemical analysis methods of rare earth ferrosilicon alloy and rare earth ferrosilicon magnesium alloy -- Part 3: Determination of magnesia content -- Inductively coupled plasma atomic emission spectrometry	Valid
GB/T 16477.3-1996	199	Add to Cart	2 days	Methods for chemical analysis of rare earth ferrosilicon alloy and rare earth ferrosilicon magnesium alloy. Determination of magnesia content	Obsolete

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Basic data

Standard ID: GB/T 16477.3-2010 (GB/T16477.3-2010)
Description (Translated English): Chemical analysis methods of rare earth ferrosilicon alloy and rare earth ferrosilicon magnesium alloy -- Part 3: Determination of magnesia content -- Inductively coupled plasma atomic emission spectrometry
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: H14
Classification of International Standard: 77.120.99
Word Count Estimation: 6,689
Date of Issue: 1/14/2011
Date of Implementation: 11/1/2011
Older Standard (superseded by this standard): GB/T 16477.3-1996
Regulation (derived from): Announcement of Newly Approved National Standards No. 2 of 2011
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This Standard specifies rare earth ferrosilicon alloy, Determination of rare earth magnesium ferrosilicon alloy magnesium oxide content. This Standard is applicable to rare earth ferrosilicon alloy, measuring the amount of rare earth magnesium ferrosilicon alloy magnesium. Measuring range: 0. 30% to 3. 00%.

GB/T 16477.3-2010: Chemical analysis methods of rare earth ferrosilicon alloy and rare earth ferrosilicon magnesium alloy -- Part 3: Determination of magnesia content -- Inductively coupled plasma atomic emission spectrometry

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Chemical analysis methods of rare earth ferrosilicon alloy and rare earth ferrosilicon magnesium alloy Part 3. Determination of magnesia content Inductively coupled plasma atomic emission spectrometry ICS 77.120.99 H14 National Standards of People's Republic of China Replacing GB/T 16477.3-1996 Rare earth ferrosilicon alloy and silicon magnesium alloy Methods for chemical analysis Part 3. Determination of magnesium oxide content Inductively Coupled Plasma Atomic Emission Spectrometry Part 3. Determinationofmagnesiacontent- Issued on. 2011-11-01 2011-01-14 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

GB/T 16477 "rare earth ferrosilicon alloy and silicon magnesium alloy chemical analysis method" is divided into five parts. --- Part 1. Determination of total rare earth; --- Part 2. calcium, magnesium, manganese content - Inductively coupled plasma atomic emission spectrometry; --- Part 3. magnesium oxide content - Inductively coupled plasma atomic emission spectrometry; --- Part 4. Determination of silicon content; --- Part 5. Determination of titanium content by inductively coupled plasma emission spectrometry. This is Part 3. This part is the "determination of rare earth ferrosilicon alloy and silicon magnesium alloy of magnesium oxide amount" of GB/T 16477.3-1996 Amendments. This section compared with the GB/T 16477.3-1996, have the following main changes. --- By inductively coupled plasma spectrometry instead of magnesium oxide content - Flame atomic absorption spectrometry; --- Increasing the precision of the terms; --- Increased quality assurance and control provisions. National Standardization Technical Committee rare in this section (SAC/TC229) centralized. This section is Baotou Rare Earth Research Institute, China Nonferrous Metals Industry Institute of Standards Metrology and Quality is responsible for drafting. This section was drafted by the Baotou Rare Earth Research Institute. This in part by China North Industries Group, Institute of fifty two, Baotou SAIEC IQ participate in the drafting. The main drafters of this section. Liu Xiaojie, gold Siqin, love Cui end. The drafters of some of the participants. Tian Tian, \u200b\u200bDonghai Cheng, Tian Xiaoting, para Dongsheng, Wang Yue, Xu Ren flowers. This part of the standard replaces the previous editions are. --- GB/T 16477.3-1996. Rare earth ferrosilicon alloy and silicon magnesium alloy Methods for chemical analysis Part 3. Determination of magnesium oxide content Inductively Coupled Plasma Atomic Emission Spectrometry

1 Scope

GB/T 16477 provisions of this part of the rare earth ferrosilicon alloy, determination of rare earth magnesium ferrosilicon alloy magnesium oxide content. This section applies to rare earth ferrosilicon alloy, magnesium measured amount of rare earth magnesium ferrosilicon alloy. Measuring range. 0.30% to 3.00%.

2 principle of the method

Sample with potassium dichromate solution leaching separation in dilute hydrochloric acid medium, using inductively coupled plasma atomic emission spectrometry, wavelength 280.270nm at the determination of magnesium oxide content.

3 Reagents and materials

3.1 hydrochloride (11). 3.2 potassium dichromate solution (40g/L). Weigh 40g potassium dichromate, placed in 250mL beaker and transferred to 1000mL dissolved in water capacity Flask, dilute to volume, and mix. 3.3 magnesium oxide standard stock solution. Weigh 0.2500g pre-ignition at 850 ℃ to constant weight and cooled to room temperature in the dryer oxide Magnesium (purity > 99.99%) were placed in 150mL beaker, add 10mL of hydrochloric acid (3.1) were dissolved by heating, cooled to room temperature, transferred to 250mL volume Volumetric flask, dilute with water to volume, and mix. This solution 1mL 1mg containing magnesium oxide. 3.4 magnesium standard solution. Pipette 5.00mL magnesium oxide standard stock solution (3.3) in 100mL flask, add 2mL of hydrochloric acid (3.1), dilute to the mark with water, mix this solution 1mL containing 50μg magnesia.

4 Instrument

4.1 Full Spectrum Direct Reading plasma emission spectrometer with a resolution of < 0.006nm (200nm office). 4.2 source. argon plasma light source, power is not less than 1.0kW. 4.3 oscillator.

5 Sample

Alloy samples made from powder, over 0.125mm sieve. Step 6 Analysis 6.1 Sample Weigh 0.2g sample (5), accurate to 0.0001g. ......

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