Alex Stewart International's laboratories have a unique competence: a trustworthy and recognised global network that employs qualified and experienced chemists using state-of-the-art analytical equipment to deliver the most precise and prompt results service for a wide range of industry sectors.
The strategically located Alex Stewart laboratory network proves the full range of assaying and analytical services for base, minor and precious metals, including jewellery, ores and concentrates, ferro alloys, recycled scrap metal, metallurgically complex materials, coal, geochemical mining and exploration services. Through Alex Stewart Agriculture, we are also able to provide a complete range of analytical services for agricultural soft commodities and products.
All Alex Stewart laboratories tailor their services to deliver cost effective and fast turnaround analytical services without compromising quality and result accuracy. Metal laboratories are able to perform analyses for over 70 elements of the Periodic Table.
Analytical Instruments Include:
RoHS and WEEE
Rapid XRF-screen Testing
Alex Stewart International can carry out rapid XRF screen testing of electronic components and PCBs in accordance to the Restriction of Hazardous Substances (RoHS) and Waste Electrical and Electronic Equipment (WEEE) Directives. To comply with RoHS and WEEE you must ensure that your products are thoroughly checked. Our screening tests will verify the percentage of harmful elements in line with the RoHS Directive.
Whether your company manufactures products, supplies to the end manufacturer or recycles electronic scrap by testing electronic components, household appliances, telecommunications equipment, toys and other consumer goods, you will receive a certificate that confirms whether or not your product contains lead, mercury, cadmium, hexavalent chromium or polybrominated biphenyls.
Further in-depth analyses can be applied on request if evidence that these materials are present is found.
XRF Detection Limits
By choosing our screen testing services, you will:
Analytical, Inspection and Certification Services
Alex Stewart Agriculture, a member of the Alex Stewart International network of laboratories, is a UKAS accredited company that works to ISO/IEC 17025: 2005 standards and provides world-class FOSFA, GAFTA and UKAS approved independent inspection and agriculture laboratory services. Supported by the A. Norman Tate and Huson and Hardwick Laboratories, we offer a complete range of agricultural analytical, inspection and certification services for the facilitation of the international trading of soft commodities including animal feed, oilseeds, oils & fats, bio diesel, grains and cereals, fertilisers, raw & refined sugar and other food products.
International Trade Accreditations
Globally recognised standards organizations recognize the excellence of the multi-faceted Alex Stewart Agriculture service. These include:
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