SN/T 4670-2016 English PDFUS$229.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. SN/T 4670-2016: Textiles for import and export--Determination of glyoxal, formaldehyde and glutaraldehyde--High performance liquid chromatography Status: Valid
Basic dataStandard ID: SN/T 4670-2016 (SN/T4670-2016)Description (Translated English): Textiles for import and export--Determination of glyoxal, formaldehyde and glutaraldehyde--High performance liquid chromatography Sector / Industry: Commodity Inspection Standard (Recommended) Classification of Chinese Standard: W55 Classification of International Standard: 59.080.01 Word Count Estimation: 10,147 Date of Issue: 2016-12-12 Date of Implementation: 2017-07-01 Regulation (derived from): State-Quality-Inspection-Accredidation (2016) No.590 Issuing agency(ies): General Administration of Customs SN/T 4670-2016: Textiles for import and export--Determination of glyoxal, formaldehyde and glutaraldehyde--High performance liquid chromatography---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. Textiles for import and export--Determination of glyoxal, formaldehyde and glutaraldehyde--High performance liquid chromatography ICS 59.080.01 W04 China's entry-exit inspection and quarantine industry standards Import and export of textile glyoxal, formaldehyde, glutaraldehyde Determination of High Performance Liquid Chromatography Published on.2016-12-12 2017-07-01 Implementation China The State Administration of Quality Supervision, Inspection and Quarantine issued ForewordThis standard was drafted in accordance with the rules given in GB/T 1.1-2009. Please note that some of the contents of this document may involve patents. The issuing agency of this document does not assume responsibility for identifying these patents. This standard is proposed and managed by the National Certification and Accreditation Regulatory Commission. This standard was drafted by. Sichuan Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China and Hebei Entry-Exit Inspection Inspection Epidemic Bureau. The main drafters of this standard are. Yu Lingyun, Wu Mengru, Dong Wei, Liu Surui, Jin Jing, Yan Yuan, Pang Xiaohong, and Zhao Sumin. Import and export of textile glyoxal, formaldehyde, glutaraldehyde Determination of High Performance Liquid Chromatography1 ScopeThis standard specifies high performance liquid chromatography (HPLC) for the determination of free and hydrolyzed glyoxal, formaldehyde and glutaraldehyde in textiles. This standard applies to the determination of free and hydrolyzed glyoxal, formaldehyde and glutaraldehyde in various textile materials and their products.2 Normative referencesThe following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article Pieces. For undated references, the latest version (including all amendments) applies to this document. GB/T 6682 Analysis Laboratory Water Specifications and Test Methods3 PrincipleAfter the sample is extracted by water, the aldehyde compound in the extract is derivatized with 2,4-dinitrophenylhydrazine under the acidic condition to the corresponding 2,4-dinitrobenzene. 腙 腙 反相 腙 腙 腙 腙 腙 腙 腙 腙 腙 腙 腙 腙 腙 腙 腙 腙 腙 腙 腙 腙 腙 腙, reversed-phase liquid chromatography column separation, equipped with a two-dimensional array tube detector or UV detector high-performance liquid chromatography, external standard quantification4 Reagents and materialsUnless otherwise specified, all reagents used were of analytical grade, and the water used was a grade one water according to GB/T 6682. 4.1 Acetonitrile. chromatographic purity. 4.2 Glacial acetic acid. 4.3 2,4-Dinitrophenylhydrazine (DNPH) 4.4 2,4-Dinitrophenylhydrazine solution. Weigh 0.07 g of 2,4-dinitrophenylhydrazine (4.3) in a 100 mL beaker, add about 80 mL of acetonitrile and 0.5 mL of glacial acetic acid, stirring until the dinitrophenylhydrazine is completely dissolved, and immediately transfer to a 100 mL brown volumetric flask with acetonitrile to volume. Shake well. 4.5 Formaldehyde standard aqueous solution. The concentration is 1000mg/L. 4.6 glyoxal standard aqueous solution. the concentration is 1000mg/L. 4.7 glutaraldehyde standard aqueous solution. the concentration is 1000mg/L. 4.8 Mixed Standard Solution. Water is the solvent and absorbs formaldehyde standard aqueous solution (4.5), glyoxal standard aqueous solution (4.6) and glutaraldehyde standard respectively. Aqueous solution (4.7) each 10mL in 100mL volumetric flask, constant volume to 100mL, formulated as a mixture of three concentrations of 100mg/L aldehydes Solution. 4.9 mixed standard working solution. water is a dilute solvent, the three standard aldehydes (4.8) are diluted step by step, and the concentration is respectively 0.2 mg/L, 0.5 mg/L, 1.0 mg/L, 2.0 mg/L, 4.0 mg/L, 5.0 mg/L standard working solution. Standard working solution ready Used now.5 Instruments and Equipment5.1 High Performance Liquid Chromatography (HPLC). With diode array detector (DAD) or UV detector (UVD). ...... |
