SN/T 0838.5-2015 English PDF

US$139.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
SN/T 0838.5-2015: Determination of copper in boric acid and borax for import and export. Flame atomic absorption spectrometry
Status: Valid

SN/T 0838.5: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 0838.5-2015	139	Add to Cart	3 days	Determination of copper in boric acid and borax for import and export. Flame atomic absorption spectrometry	Valid
SN/T 0838.5-1999	239	Add to Cart	2 days	Boric acid and borax for export. Determination of copper content	Obsolete

Similar standards

GB/T 337.2   GB/T 534   GB/T 210.2   SN/T 0838.2   SN/T 0838.3   SN/T 0838.1   

Basic data

Standard ID: SN/T 0838.5-2015 (SN/T0838.5-2015)
Description (Translated English): Determination of copper 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: 6,618
Date of Issue: 2015-05-26
Date of Implementation: 2016-01-01
Older Standard (superseded by this standard): SN/T 0838.5-1999
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 spectrophotometric determination of copper content of boric acid and borax method. This standard applies to the determination of boric acid and borax import and export of copper content in the measurement range of 1.50 mg/kg ~ 75.00 mg/kg.

SN/T 0838.5-2015: Determination of copper 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 copper content - Flame atomic absorption spectrophotometry) People's Republic of China Entry-Exit Inspection and Quarantine Standards Instead of the SN/T 0838.5-1999 Import and export of boric acid and borax method for the determination of copper 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 0838.3-2015 import and export of boric acid and borax Determination of nickel 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; This section SN/T Section 50838 of. This section drafted in accordance with GB/T 1.1-2009 given rules. The partial replacement of SN/T 0838.5-1999 "export of boric acid and borax Determination of copper content." This portion of the SN/T 0838.5- 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 Jilin Exit Inspection and Quarantine. The main drafters of this section. Lu Chun-Mei, Li Mo Hay, Sun Min, Han Dachuan, Wulian Peng, Song Ao, Kangming Qin, cattle Qian. This part of the standard replaces the previous editions are. --- SN/T 0838.5-1999. Import and export of boric acid and borax method for the determination of copper Flame atomic absorption spectrophotometry

1 Scope

SN/T 0838 provisions of this part of the flame atomic absorption spectrophotometry boric acid and borax copper content approach. This section applies to the determination of the import and export of boric acid and borax copper content was measured in the range of 1.50mg/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 2% nitric acid dissolved in a boiling water bath in nitric acid medium by atomic absorption spectrophotometer at a wavelength of 324.8nm Department to Air - acetylene flame measured absorbance of copper.

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 2% nitric acid solution. Apply nitric acid (4.1) and water were mixed volume ratio of 2.98. 4.3 copper standard stock solution. concentration of 1000μg/mL, using commercially available certified standard copper solution. 4.4 copper standard working solution. accurate Pipette the appropriate amount of copper standard stock solution (4.3), serial dilutions with 2% nitric acid solution (4.2), the concentration of the solution Of 10μg/mL. 5. Apparatus 5.1 Atomic absorption spectrophotometer. with copper 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.

6 measuring step

6.1 blank test Along with the test sample blank. ......

Image     

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of SN/T 0838.5-2015_English be delivered?

Answer: Upon your order, we will start to translate SN/T 0838.5-2015_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of SN/T 0838.5-2015_English with my colleagues?

Answer: Yes. The purchased PDF of SN/T 0838.5-2015_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.

Question 5: Should I purchase the latest version SN/T 0838.5-2015?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version SN/T 0838.5-2015 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.