LGC Standards LoGiCal provides laboratories with a conveniently packaged wide range of reference materials, focused on forensic and clinical toxicology. Since being launched 2012, the portfolio has continually grown and now covers drugs, metabolites and stable isotope labelled analogues. They are ideally suited for use as calibrators or controls. The solutions are manufactured under processes accredited to ISO:IEC 17025 and ISO Guide 34 and are also DEA exempt products where appropriate, giving confidence in the quality and easing purchasing respectively.