SN/T 2086-2008 English PDF

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SN/T 2086-2008: Determination of the formaldehyde in wooden toys. High performance liquid chromatography method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 2086-2008	209	Add to Cart	3 days	Determination of the formaldehyde in wooden toys. High performance liquid chromatography method	Valid

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Basic data

Standard ID: SN/T 2086-2008 (SN/T2086-2008)
Description (Translated English): Determination of the formaldehyde in wooden toys. High performance liquid chromatography method
Sector / Industry: Commodity Inspection Standard (Recommended)
Classification of Chinese Standard: Y57
Word Count Estimation: 8,862
Date of Issue: 2008-04-29
Date of Implementation: 2008-11-01
Quoted Standard: GB/T 2912.1-1998; GB/T 6682
Regulation (derived from): Industry standard filing Notice 2008 No. 7
Issuing agency(ies): General Administration of Customs
Summary: This standard specifies the determination of formaldehyde in wooden toys high performance liquid chromatography. This standard applies to all kinds of solid wood and artificial by the toys made of sheet metal and other formaldehyde content.

SN/T 2086-2008: Determination of the formaldehyde in wooden toys. High performance liquid chromatography method

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Determination of the formaldehyde in wooden toys.High performance liquid chromatography method Exit inspection and quarantine industry standard book People's Republic of China Determination of formaldehyde content in wooden toys High Performance Liquid Chromatography Posted 2008-04-29 2008-11-01 implementation People's Republic of China The State Administration of Quality Supervision, Inspection and Quarantine released

Foreword

Appendix A of this standard is an informative annex. This standard is proposed and managed by the National Certification and Accreditation Administration Committee. This standard was drafted. People's Republic of China Guangdong CIQ. The main drafters of this standard. Huang Li Na, Ouyang Lun, Yang Chen, Li Bingzhong, Liuchong Hua, ants Le Chau, Zhong Zhiguang. This standard is the first release of the entry-exit inspection and quarantine industry standards. Determination of formaldehyde content in wooden toys High Performance Liquid Chromatography

1 Scope

This standard specifies the wooden toys formaldehyde content determined by HPLC. This standard applies to the determination of various toys made of solid wood and formaldehyde content and other man-made sheet steel.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the agreement in accordance with the standard parties RESEARCH Study whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. 2912.1-1998 Textiles - Determination of formaldehyde GB/T Part 1. Free and hydrolyzed formaldehyde (water extraction method) (eqv ISO /FDIS14184-1.1997) GB/T 6682 analytical laboratory use specifications and test methods (GB/T 6682-1992, neq ISO 3696. 1987) Principle 3 Extraction of water samples in formaldehyde, formaldehyde extract with 2,4-dinitrophenylhydrazine (2,4-Dinitrophenylhydrazine, DNPH) Derivatization process in weak acid buffer solution, the direct determination of the formaldehyde content by HPLC.

4 Reagents

Unless otherwise indicated in the analysis using only recognized as analytical reagents and GB/T 6682 under the two water. 4.1 acetic acid. 4.2 sodium acetate. 4.3 2,4-dinitrophenylhydrazine (DNPH). 50% aqueous solution. 4.4 acetonitrile. chromatography. 4.5 5mol/L acetic acid. Take 28.5mL acetic acid (4.1), constant volume of water to 100mL. 4.6 5mol/L sodium acetate solution. Weigh 41.0g of sodium acetate (4.2), constant volume of water to 100mL. 4.7 acetate buffer (pH5.0). Take 40.0mL5mol/L acetic acid (4.5), 60.0mL5mol/L sodium acetate solution (4.6), mixed Together evenly. Adjusted to pH5.0 ± 0.1 with 6mol/L sodium hydroxide or 6mol/L hydrochloric acid, if necessary. 4.8 2,4-dinitrophenylhydrazine (DNPH) solution (3mg/mL). said 600mgDNPH (50%) in 100mL flask with acetonitrile To the mark. Cold dark, valid for two weeks. 4.9 formaldehyde standard. standard solution (12mg/mL or so) or formaldehyde stock solution according to GB/T 2912.1-1998 Appendix A calibration method After diluted with pure water to a concentration of 12mg/mL or so stored. 4.10 120μg/mL concentration of formaldehyde standard solution. Take formaldehyde standard solution (4.9) diluted 100 times to give 120μg/mL or so Formaldehyde standard solution. 4.11 5μg/mL concentration of formaldehyde standard solution. Take 1mL120μg/mL formaldehyde standard solution (4.10) diluted 25-fold to give 5μg/mL About formaldehyde standard solution. 5. Apparatus 5.1 High performance liquid chromatograph. with diode array detector (DAD) or UV - visible detector (UV-VIS). ......

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