EUROLAB, with its state-of-the-art accredited laboratories and expert team, provides precise and fast testing services within the scope of EN ISO 1833-18 testing. This standard specifies a method that uses sulfuric acid to determine the mass percent of silk in textiles after the non-fibrous material has been removed.
The silk fiber is dissolved with 75% (mass fraction) sulfuric acid from the known dry mass of the mixture. The residue is collected, washed, dried and weighed; the corrected mass if necessary, expressed as a percentage of the dry mass of the mixture. The difference is the percentage of silk.
Prepare this reagent by carefully adding 700 ml of sulfuric acid to 350 ml of distilled water while cooling. After cooling this solution to room temperature, dilute it to 1 with water. Concentration is not critical in the range of 73% to 77% (mass fraction) sulfuric acid.
EUROLAB assists manufacturers with EN ISO 1833-18 test compliance. Our test experts, with their professional working mission and principles, provide you, our manufacturers and suppliers, the best service and controlled testing process in our laboratories. Thanks to these services, businesses receive more effective, high-performance and quality testing services and provide safe, fast and uninterrupted service to their customers.
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