SN/T 0838.3-2015 English PDFUS$139.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. 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: Historical versions
Basic dataStandard 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71.040.30 Word Count Estimation: 6,633 Date of Issue: 2015-05-26 Date of Implementation: 2016-01-01 Older Standard (superseded by this standard): SN/T 0838.3-1999 Quoted Standard: GB/T 6682 Regulation (derived from): State Quality-Inspection-accreditation [2015] No.224 Issuing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 ForewordSN/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 spectrophotometry1 ScopeSN/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 referencesThe 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 Analysis3 Method summaryThe 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 materialsUnless 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. ...... |
