EUROLAB laboratory provides testing and compliance services within the scope of ISO 1138 standard. It introduces two methods for determining the total sulfur content in all types of carbon black for use in the rubber industry.
The total sulfur content, expressed as a percent by mass, is given by a formula. For safety considerations and test accuracy, it is preferable to use automated systems. Therefore, Method B is the preferred method. Conventional chemical analysis (Method A) is acceptable if automated equipment is not available.
A weighed test portion of dried carbon black is heated in a stream of oxygen in an incinerator at a temperature of 1 °C. Sulfur compounds developed from the test portion are collected in a titer flask containing hydrochloric acid solution. These compounds are titrated with standard volumetric potassium iodate-potassium iodide solution. The sulfur percentage is calculated.
EUROLAB assists manufacturers with ISO 1138 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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EUROLABreporting and certification activities, United Accreditation Foundation (UAF), Turkish Accreditation Agency (TÜRKAK) ve Enterprise Accreditation Foundation (EAF) based on the accreditation provided by the accreditation body. The Enterprise Accreditation Foundation (EAF) accreditation body is also a signatory of the United Nations (UN GLOBAL COMPACT) organization.
