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SN/T 3361-2012 English PDF

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US$339.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
SN/T 3361-2012: Determination of organotin compounds in timber and wood products. Gas chromatography-mass spectrometry
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 3361-2012	339	Add to Cart	3 days	Determination of organotin compounds in timber and wood products. Gas chromatography-mass spectrometry	Valid

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SN/T 5268

Basic data

Standard ID: SN/T 3361-2012 (SN/T3361-2012)
Description (Translated English): Determination of organotin compounds in timber and wood products. Gas chromatography-mass spectrometry
Sector / Industry: Commodity Inspection Standard (Recommended)
Word Count Estimation: 13,181
Quoted Standard: GB/T 6682
Regulation (derived from): National Quality Inspection (2012) 777 number; industry standards filing Notice 2013 No. 4 (No. 160 overall)
Issuing agency(ies): General Administration of Customs
Summary: This standard specifies the timber and wood products in organotin compounds by gas chromatography mass spectrometry (GC-MS) method. This standard applies to wood and wood products in a tributyltin (MBT), dibutyltin (DBT), tributyltin (TBT), triphenyltin (

SN/T 3361-2012: Determination of organotin compounds in timber and wood products. Gas chromatography-mass 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.
Determination of organotin compounds in timber and wood products.Gas chromatography-mass spectrometry People's Republic of China Entry-Exit Inspection and Quarantine Standards Determination of organotin compounds in wood and wood products Gas chromatography - mass spectrometry Issued on. 2012-12-12 2013-07-01 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. Please note that some of the content of this document may involve patents. Distribution of this document Institutions do not assume the responsibility to identify these patents. This standard is proposed and managed by the National Certification and Accreditation Administration Committee. This standard was drafted. People's Republic of China Shandong CIQ. The main drafters of this standard. Qi Jialin, cattle Zengyuan, WANG Zhao Kun, Ye Xi Wen. Determination of organotin compounds in wood and wood products Gas chromatography - mass spectrometry

1 Scope

This standard specifies the wood and wood products in the organic tin compounds by gas chromatography - mass spectrometry (GC-MS) spectrometry. This standard applies to wood and wood products in monobutyltin (MBT), dibutyltin (DBT), tributyltin (TBT), triphenyltin Determination (TPhT) content. This standard does not apply to food contact wood and wood products.

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 Principle 3 Ethanol as a solvent, ultrasonic extraction sample organic tin extraction solution after sodium borate tetraethyl derivatized with hexane extraction have Organotin derivatives in GC-MS measurement and validation, external standard.

4 Reagents and materials

Unless otherwise specified, use only analytical reagents, test water should be consistent with a water GB/T 6682 stipulated. 4.1 tetraethyl sodium borate. Purity ≥98%. 4.2 anhydrous sodium. Take appropriate amount of anhydrous sodium sulfate, burning at 650 ℃ 4h, cooled storage in a desiccator. 4.3 ethanol. chromatography. 4.4 hexane. chromatographically pure. 4.5 acetic acid - sodium acetate buffer solution. preparation of 1mol/L sodium acetate solution was adjusted with acetic acid to pH = 5.0. 4.6 tetraethyl sodium borate solution (2%). After quickly weighed in a beaker with deionized water, placed in a brown flask, now with the existing, in 4 ℃ stored. Warning. flammable sodium tetraethyl borate, sodium borate tetraethyl about job security, refer to the relevant chemical safety manual or safety supplier Full warning indicator. 4.7 organotin Standard. Purity ≥98%, see Appendix A. 4.8 organotin standard stock solution. the standard concentration of the stock solution concentration of organotin cation. Accurately weighed amount of organotin standards (4.7), with a small amount of methanol dissolved and diluted to volume in a brown flask, the concentration of 1000μg/mL, method of preparation see Appendix B. Standard stock solution should be placed in refrigerator at 4 ℃ dark preservation using valid for six months. 4.9 Organotin standard solution. According to need real samples, diluted with methanol to a mixed standard working solution of appropriate concentration, linear In the range of 0.1μg/mL ~ 20μg/mL. Standard working solution should be placed in refrigerator at 4 ℃ dark preservation, use is valid for one month. 4.10 filter. pore size 0.22μm, the organic phase. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of SN/T 3361-2012_English be delivered?

Answer: Upon your order, we will start to translate SN/T 3361-2012_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 3361-2012_English with my colleagues?

Answer: Yes. The purchased PDF of SN/T 3361-2012_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.