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SN/T 2698-2010: Elemental analysis of impurities in tungsten products. Inductively coupled plasma atomic emission spectrometric method
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| SN/T 2698-2010 | English | 239 |
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Elemental analysis of impurities in tungsten products. Inductively coupled plasma atomic emission spectrometric method
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SN/T 2698-2010
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PDF similar to SN/T 2698-2010
Standard similar to SN/T 2698-2010 GB/T 4325.6 GB/T 4325.5 GB/T 3458 Basic data | Standard ID | SN/T 2698-2010 (SN/T2698-2010) | | Description (Translated English) | Elemental analysis of impurities in tungsten products. Inductively coupled plasma atomic emission spectrometric method | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | H63 | | Classification of International Standard | 77.150.99 | | Word Count Estimation | 9,973 | | Date of Issue | 2010-11-01 | | Date of Implementation | 2011-05-01 | | Quoted Standard | GB/T 602; GB/T 6682 | | Regulation (derived from) | National Quality Inspection (2010) 582 | | Issuing agency(ies) | General Administration of Customs | | Summary | This standard specifies the tungsten products in Ni, Fe, Co, Mn and other elements by inductively coupled plasma atomic emission spectrometric method. This standard applies to tungsten products in the determination of the four elements, measurement ranges are shown in Table 1. | SN/T 2698-2010: Elemental analysis of impurities in tungsten products. Inductively coupled plasma atomic emission spectrometric method
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Elemental analysis of impurities in tungsten products.Inductively coupled plasma atomic emission spectrometric method
People's Republic of China Entry-Exit Inspection and Quarantine Standards
Tungsten Products impurities in elemental analysis by inductively coupled
Plasma atomic emission spectrometry
Issued on. 2010-11-01
2011-05-01 implementation
People's Republic of China
The State Administration of Quality Supervision, Inspection and Quarantine released
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
This standard is proposed and managed by the National Certification and Accreditation Administration Committee.
This standard was drafted. Tianjin People's Republic of China Exit Inspection and Quarantine.
The main drafters of this standard. Wang Haoyun, Yang Lifei, Yaozhuan Gang, Gu Songhai, Li Yi, Wang Zhenkun, Su Mingyue.
This standard is the first release of the entry-exit inspection and quarantine industry standards.
Tungsten Products impurities in elemental analysis by inductively coupled
Plasma atomic emission spectrometry
1 Scope
This standard specifies the tungsten products in inductively coupled plasma atomic Ni, Fe, Co, Mn and other elements of emission spectrophotometric method.
This standard applies to the determination of tungsten products in the four elements, measuring range in Table 1.
Table 1 measuring range of analyte
Elements in the range of (mass fraction) /%
Ni 0.05 ~ 8.00
Fe 0.05 ~ 6.00
Co 0.05 ~ 3.00
Mn 0.02 ~ 2.00
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
Preparation of standard solution of GB/T 602 Determination of impurities in chemical reagents
Laboratory use specifications and test methods GB/T 6682 Analysis
3 Method summary
After the sample was dissolved nitric and hydrofluoric acid, hydrofluoric acid, heating to remove perchloric acid was added, the precipitate was dissolved by adding sodium hydroxide, hydrochloric acid, transfer
Volume to a certain volume of the sample solution was introduced into the plasma torch flame, as a excitation light source in a plasma spectrometer wavelength corresponding element
Light intensity measured to determine its content from the standard curve.
4 Reagents and materials
Unless otherwise specified, this standard reagents were analytical reagents, test water for the two water in line with GB/T 6682 regulations.
4.1 high-purity tungsten (tungsten content > 99.98%).
4.2 Hydrofluoric acid (ρ1.15g/mL).
Nitrate 4.3 (ρ1.42g/mL).
4.4 perchloric acid (ρ1.67g/mL).
4.5 hydrochloride (ρ1.19g/mL).
4.6 hydrochloride (11). hydrochloric acid (4.4) was diluted.
4.7 sodium hydroxide solution (25%, m/V).
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