The chemical laboratory

The Certottica laboratories

Testing and chemical analyses are fundamentally important to compliance with current standards and understanding the quality and composition of the chemical products used in manufacturing.

Certottica’s laboratories perform the chemical tests manufacturers need, if they are to comply with an ever growing list of safe-chemical-substance-use standards.

For firms a focus on the chemical composition of materials and related compliance with standards translates into reputational growth across the supply chain and facilitates access to global markets, as certain substances are banned in some jurisdictions.

Certottica has been investing in its chemical laboratory for some time now and offers an interesting range of chemical tests required for optical products sold in the United States, European Union and other markets.

List of chemical analysis and other standards

List of standards for chemical analyses

  • EN 1122 “Plastics – Determination of cadmium – Wet decomposition method”
  • CPSC-CH-E1001-08.3 “Total Lead in Metal”
  • CPSC-CH-E1002-08.3 “Standard Operating Procedure for determining total Lead (Pb) in non-metal children’s products”
  • CPSC-CH-E1003-09.1 “Standard Operating Procedure for determining total Lead (Pb) in Paint and Other Similar Surface Coatings”
  • EN16128 “Ophthalmic optics: Reference method for the testing of spectacle frames and sunglasses for nickel release”
  • EN 1811:2011+A1:2015 – Reference test method for release of nickel from all post assemblies which are inserted into pierced parts of the human body and articles intended to come into direct and prolonged contact with the skin
  • CPSC-CH-C1001-09.4 “Standard Operating Procedure for determination of phthalates”
  • ISO 17234-1 “Chemical test of determination of certain azo colourants in dyed leathers”
  • EN ISO 17075 “Leather: Determination of Chromium (VI) content”
  • ISO 17072-1 “Leather: Chemical determination of metal content-Part 1: Extractable metals”
  • ISO 17072-2 “Leather: Chemical determination of metal content-Part 2: Total metal content”
  • EN16711-1 “Textile: Determination of metal content- Part 1 : Determination of metals using microwave digestion”
  • EN16711-2 “Textile: Determination of metal content- Part 2 : Determination of metals extracted by acidif artificial perspiration solution”
  • ISO 17226-2 “Leather: Chemical determination of formaldehyde content-Part 2: method using colorimetric analysis”
  • ISO 4045 “Leather: Chemical test of determination of pH”
  • ISO 11642 “Leather: Tests for colour fastness – Colour fastness to water”
  • ISO 14362-1 “ Textiles: Methods for determination of certain aromatic amines derived from azo colorants – Part 1: Detection of the use of certain azo colorants accessible with and without extracting the fibres”
  • ISO 14362-3 “ Textiles: Methods for determination of certain aromatic amines derived from azo colorants – Part 3: Detection of the use of certain azo colorants, which way release 4-aminoazobenzene”
  • ISO 3071 “ Textiles: Determination of pH of aqueous extract”
  • ISO 105 E04 “Textiles-Test for colour fastness. Part E04: Colour fastness to perspiration”


Other technical specifications

  • ISO 9227: “Corrosion tests in artificial atmospheres
  • ASTM G 154-06: “Standard Practice for Operating Fluorescent (UV) Lamp Apparatus for Exposure of Nonmetallic Materials”


Standards applying to fabrics for UVA factor protection checks

  • EN 13758 “Tessili – Proprietà protettive alle radiazioni UV – Metodo di prova per tessuti”
  • AS/NZS 4399 “Sun protective clothing – evaluation and classification”
  • AATCC TM183-2020

Metallographic laboratory

Alongside its chemical laboratory Certottica has also extended its work into other testing fields, including metallographic tests and ageing tests on materials. Metallographic and ageing tests have a multiplicity of applications and are an effective enquiry and research method for the eyewear industry and, therefore, a valid design and quality control medium (defect diagnostics, design checks, checks on product compliance with technical specifications).

Measuring the UV protection factor of fabrics

Transferring its know-how from the optical to the fabrics sector, Certottica offers firms laboratories specialising in measuring fabrics’ UV protection factor (UPF) in accordance with current international standards.