A blank matrix is provided for laboratories that require a spiked quality control material to be run alongside samples being analysed; however only results for the spiked sample are to be reported. Results are not required to be returned for the blank matrix provided and any blank values must not to be taken into account when reporting the spiked sample values.

Para obtener detalles sobre la especificación técnica completa del esquema, consulte la Descripción del esquema.