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SN/T 0838.3-2015: Determination of nickel in boric acid and borax for import and export - Flame atomic absorption spectrometry
Status: Valid SN/T 0838.3: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| SN/T 0838.3-2015 | English | 139 |
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Determination of nickel in boric acid and borax for import and export - Flame atomic absorption spectrometry
| Valid |
SN/T 0838.3-2015
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| SN/T 0838.3-1999 | English | 239 |
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Boric acid and borax for export. Determination of nickel content
| Obsolete |
SN/T 0838.3-1999
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PDF similar to SN/T 0838.3-2015
Basic data | Standard ID | SN/T 0838.3-2015 (SN/T0838.3-2015) | | Description (Translated English) | Determination of nickel in boric acid and borax for import and export - Flame atomic absorption spectrometry | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | G11 | | Classification of International Standard | 71.040.30 | | Word Count Estimation | 6,633 | | Date of Issue | 2015-05-26 | | Date of Implementation | 2016-01-01 | | Older Standard (superseded by this standard) | SN/T 0838.3-1999 | | Quoted Standard | GB/T 6682 | | Regulation (derived from) | State Quality-Inspection-accreditation [2015] No.224 | | Issuing agency(ies) | General Administration of Customs | | Summary | This standard specifies the flame atomic absorption spectrophotometry nickel content of boric acid and borax method. This standard applies to the determination of boric acid and borax in the import and export of nickel content in the measured range of 5.00 mg/kg ~ 75.00 mg/kg. | SN/T 0838.3-2015: Determination of nickel in boric acid and borax for import and export - Flame atomic absorption 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.
(Import and export of boric acid and borax in the determination of nickel content - Flame atomic absorption spectrophotometry)
People's Republic of China Entry-Exit Inspection and Quarantine Standards
Instead of the SN/T 0838.3-1999
Determination of nickel content in the import and export of boric acid and borax
Flame atomic absorption spectrophotometry
Issued on. 2015-05-26
2016-01-01 implementation
People's Republic of China
The State Administration of Quality Supervision, Inspection and Quarantine released
Foreword
SN/T 0838 is divided into five sections.
--- SN/T 0838.1-2015 import and export of boric acid and borax Determination of chromium content - Flame atomic absorption spectrophotometry;
--- SN/T 0838.2-2015 import and export of boric acid and borax Determination of cobalt content - Flame atomic absorption spectrophotometry;
--- SN/T 0838.4-2015 import and export of boric acid and borax Determination of manganese content - Flame atomic absorption spectrophotometry;
--- SN/T 0838.5-2015 import and export of boric acid and borax copper content determination method of flame atomic absorption spectrophotometry.
This section SN/T Section 30838 of.
This section drafted in accordance with GB/T 1.1-2009 given rules.
The partial replacement of SN/T 0838.3-1999 "export of boric acid and borax Determination of nickel content." This portion of the SN/T 0838.3-
Compared to 1999, the main technical changes are as follows.
--- Increased by flame atomic absorption spectrophotometry;
--- Remove the normative references in standards for sampling;
--- Remove the 3.4 "Sampling" section.
This section proposed and managed by the National Certification and Accreditation Administration Committee.
This section was drafted by. People's Republic of China Exit Inspection and Quarantine of Jilin, Gansu People's Republic of China Entry-Exit Inspection and
Quarantine Bureau.
The main drafters of this section. Lu Chun-mei, Wulian Peng, Yan Na, Chen Guangyu, Handa Chuan, Meng increasing, Li Ling, Qian Niu.
This part of the standard replaces the previous editions are.
--- SN/T 0838.3-1999.
Determination of nickel content in the import and export of boric acid and borax
Flame atomic absorption spectrophotometry
1 Scope
SN/T 0838 provisions of this part of the flame atomic absorption spectrophotometry nickel content of boric acid and borax method.
This section applies to the determination of boric acid and borax in the import and export of nickel content in the measured range of 5.00mg/kg ~ 75.00mg/kg.
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.
Laboratory use specifications and test methods GB/T 6682 Analysis
3 Method summary
The sample was 4% nitric acid dissolved in a boiling water bath in nitric acid medium by atomic absorption spectrophotometer at a wavelength of 232.0nm Department to
Air - acetylene flame measured absorbance of nickel.
4 Reagents and materials
Unless otherwise indicated, only recognized as a superior grade pure acid or steamed system treated chemical reagents, water GB/T 6682 provisions
Two water.
4.1 nitric acid (ρ = 1.4g/mL).
4.2 4% nitric acid solution. Apply nitric acid (4.1) and water were mixed volume ratio of 4.96.
4.3 Nickel standard stock solution. concentration of 1000μg/mL, using commercially available certified nickel element standard solution.
4.4 Nickel standard working solution. accurate Pipette the appropriate amount of nickel standard stock solution (4.3), with 4% nitric acid solution (4.2) by serial dilution, the concentration of the solution
Of 10μg/mL.
5. Apparatus
5.1 Atomic absorption spectrophotometer. with nickel element hollow cathode lamp, working conditions, see Appendix A.
5.2 Analysis of balance. a sense of the amount of 0.1mg.
5.3 flask. 50mL, 100mL.
5.4 tube. 25mL.
Pipette 5.5. 1mL, 5mL, 10mL.
Step 6 Analysis
6.1 blank test
Along with the test sample blank.
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