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SN/T 4129-2015 English PDF

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US$189.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
SN/T 4129-2015: Determination method of formaldehyde emission of wood-based panels and finishing products. High performance liquid chromatography method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 4129-2015	189	Add to Cart	3 days	Determination method of formaldehyde emission of wood-based panels and finishing products. High performance liquid chromatography method	Valid

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GB/T 4897 GB/T 4897.3 GB/T 4897.2 SN/T 4772 SN/T 4696

Basic data

Standard ID: SN/T 4129-2015 (SN/T4129-2015)
Description (Translated English): Determination method of formaldehyde emission of wood-based panels and finishing products. High performance liquid chromatography method
Sector / Industry: Commodity Inspection Standard (Recommended)
Classification of Chinese Standard: B70
Classification of International Standard: 79.060
Word Count Estimation: 8,820
Date of Issue: 2015-02-09
Date of Implementation: 2015-09-01
Quoted Standard: GB/T 6682; LY/T 1612
Regulation (derived from): State-Quality-Inspection-Accreditation [2015] 59
Issuing agency(ies): General Administration of Customs
Summary: This standard specifies the wood-based panel products formaldehyde emission was measured by high performance liquid chromatography. This standard applies to the determination of plywood and their products formaldehyde emission.

SN/T 4129-2015: Determination method of formaldehyde emission of wood-based panels and finishing products. High performance liquid chromatography method

---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 plywood and their products formaldehyde emission HPLC) People's Republic of China Entry-Exit Inspection and Quarantine Standards Products and wood-based panels Determination of formaldehyde emission High Performance Liquid Chromatography Issued on. 2015-02-09 2015-09-01 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 Entry Inspection and Quarantine Bureau, People's Republic of China Guangdong Entry-Exit Inspection and Quarantine Bureau. The main drafters of this standard. Han Jingwei, Zhang Zhihui, Xu Meiling, Guoren Hong, WANG Zheng, Yang Juan, Dong Lijun, Sun Jingzhong. Products and wood-based panels Determination of formaldehyde emission High Performance Liquid Chromatography

1 Scope

This standard specifies the wood-based panel products formaldehyde emission was measured by high performance liquid chromatography. This standard applies to the determination of plywood and their products formaldehyde emission.

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 LY/T 1612 formaldehyde emission detection 1m3 climate chamber

3 Method summary

The surface area of 1m2 of sample into the temperature, relative humidity, air velocity and air exchange rate was controlled at a certain value of the climate chamber. Armor Aldehyde released from the sample, mixed with air inside, regular sampling of air inside the air extracted by absorption bottle filled with distilled water, air All formaldehyde gas dissolved in water; after absorbing liquid formaldehyde and 2,4-dinitrophenylhydrazine derivatization process, the direct use of high performance liquid chromatography Spectrum Determination of formaldehyde content.

4 Reagents

Unless otherwise stated, the use of water as the only three confirmed analytically pure reagents and GB/T 6682 stipulated or deionized water. 4.1 acetic acid. AR. 4.2 2,4-dinitrophenylhydrazine. AR, CAS number. 119-26-6 Chemical formula. (NO2) 2C6H3NH2NH. 4.3 acetonitrile. chromatography. 4.4 2,4-dinitrophenylhydrazine solution (0.5mg/mL). Weigh accurately 50mg (accurate to 1mg) 2,4- dinitrophenylhydrazine (4.2) in 100mL capacity Flask, was added 0.5mL of acetic acid (4.1) with acetonitrile (4.3) and dissolve to volume. 4.5 Formaldehyde standard solution. 100mg/L. 4.6 formaldehyde standard solution. Pipette 15mL formaldehyde standard solution (4.5) in 100mL flask, the water volume of the standard solution Formaldehyde concentration of 15mg/L.

5 Apparatus and materials

5.1 High performance liquid chromatograph. with diode array detector (DAD) or UV - visible detector (UV-VIS). 5.2 constant temperature water bath. (60 ± 2) ℃. 5.3 Analysis of balance. a sense of the amount of 1mg. 5.4 filter. 0.45μm organic membrane filters, syringe or other forms. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of SN/T 4129-2015_English be delivered?

Answer: Upon your order, we will start to translate SN/T 4129-2015_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 4129-2015_English with my colleagues?

Answer: Yes. The purchased PDF of SN/T 4129-2015_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.