Testing and determination method for hexavalent chromium content in leather - Dejun Instrument

1、 Regulations on Hexavalent Chromium in Leather:

European Commission2014year3Monthly release301/2014Regulation No., which imposes hexavalent chromium on leather products produced or imported in the European Union that can come into direct contact with the skinCr6+Content limit requirements.

At present, the European UnionReachRegulatory AnnexXVIIRequirements for ecological textilesOekoOeko-Tex ® Standard 100, andOEKONew leather standardsLEATHER STANDARD by OEKO-Tex ®For hexavalent chromium in leather, * is3mg/kg，OEKOAt the same time, in the testing programISO 17075As a testing standard for hexavalent chromium in leather.

2017year2Month, Standardization OrganizationISOThe updated detection standards for hexavalent chromium content in leather have been releasedISO17075-1:2017andISO17075-2:2017Replace the previous oneISO17075:2007It has been clarified that the content of hexavalent chromium in leather can be quantified up to3mg/kgSuitable for all types of leather.

2、 Equipment Introduction:

This set of leather hexavalent chromium testing equipment meets the requirements of "Leather chemical test Hexavalent chromium detectionISO17075-1：2017 Leather-Chemical tests-Determination of chromium(Ⅵ) content》And 'Leather and Fur' Chemical experiment Determination of hexavalent chromium contentGB/T 22807-2008》Suitable for the detection of hexavalent chromium content in various leather, fur, synthetic leather, and synthetic leather.

This set of leather hexavalent chromium testing equipment adopts the same execution standards, testing methods, and instrument specifications as quality inspection and commercial inspection agencies. It is provided for leather factories, textile, clothing factories, and other production enterprises, third-party testing agencies, and quality inspection and commercial inspection units“ONE STOP SERVICE”The overall solution for the laboratory of hexavalent chromium in leather.

3、 Equipment composition:

1Analytical instrument: Hexavalent chromium detector;

2Sample preparation equipment: electronic analytical balance, water bath oscillator, filtration device (chromatographic column)pHAcidimeter, etc;

3Supporting glassware: measuring cylinder, volumetric flask, beaker, pipette, conical flask, iodine measuring flask, etc;

4Supporting drug reagents: hexavalent chromium standard solution, dipotassium hydrogen phosphate, phosphoric acid1,5-Diphenylcarbazide, etc;

5Data processing software: capable of automatically calculating sample detection results.

6Technical services: on-site installation and debugging, technical personnel training (up to church), maintenance and repair, consumables supply, testing guidance, etc.

4、 Performance characteristics:

1High cost-effectiveness: Low procurement cost, low testing cost, saving high testing costs for long-term inspections;

2Reliable performance: equipped according to national standards and using the same testing methods as quality inspection and commercial inspection;

3Complete technical training: on-site training for technical personnel (junior high school level is sufficient), until teaching;

4Low testing cost: Drug reagents are non-toxic and harmless, cheap and easy to obtain, and can be supplied for a long time;

5Real time flexible quality inspection:1Multiple batches of testing within the day, flexible quality monitoring of raw materials, finished products, etc;

6Data traceability: can be compared and verified with testing data from third-party testing institutions;

7Shaping corporate image: available for visiting factory customers to promote the company's emphasis on product quality.

5、 Execution standards:

The Leather chemical test Hexavalent chromium detectionISO17075-1：2017 》

German Leather Inspection.Chromium in leather(vi)Determination of ContentDIN 53314-1996[7]

EU General Requirements for Gloves.Hexavalent ChromiumEN420：1994[6]

China's Leather and Fur Chemical experiment Determination of Hexavalent Chromium ContentGB/T 22807-2008

China's Textile Industry Determination of heavy metals auxiliary word for ordinal numbers3Part: Hexavalent chromium Spectrophotometric methodGB/T 17593.3-2006

China's "Chromium in Leather Gloves for ExportVIThe testing method.Spectrophotometric methodSN 0704-1997

Technical Requirements for Ecological Textiles in ChinaGB/T 18885-2002

6、 Hexavalent chromium * value:

European Commission2014year3Monthly release301/2014Regulation No. 1 imposes hexavalent chromium content restrictions on leather products produced or imported in the European Union that can come into direct contact with the skin.

At present, the European UnionReachRegulatory AnnexXVIIRequirements for ecological textilesOekoOeko-Tex ® Standard 100, andOEKONew leather standardsLEATHER STANDARD by OEKO-Tex ®For hexavalent chromium in leather, * is3mg/kg，OEKOAt the same time, in the testing programISO 17075As a testing standard for hexavalent chromium in leather.

7、 Scope of application:

1Various types of leather, fur, and leather products, including genuine leather, recycled leather, synthetic leather, synthetic leather, etc.

2Textiles and clothing.

8、 Applicable customers:

Leather, leather shoes, leather bags, leather jackets and other leather products, textile and clothing production enterprises, third-party testing agencies, quality inspection and commercial inspection units.

9、 After sales service:

1Warranty for major instruments and equipment such as hexavalent chromium detectors1Lifetime maintenance and upkeep;

2Long term supply of laboratory consumables such as glassware, pharmaceutical reagents, etc;

3Comprehensive technical training, including leather/Drawing of standard curve for hexavalent chromium in textiles and leather/Textile sample testing;

4On site installation and debugging, personnel training (until church), standards/Comprehensive technical services including regulatory interpretation, testing guidance, maintenance and repair.Testing and determination method for hexavalent chromium content in leather - Dejun Instrument