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Description

ERM-FD305 consists of a suspension of silica particles at a mass fraction of 1.5 g/kg in a borate buffer at pH 8.9. The material is available in 5 mL pre-scored ampoules containing approximately 5 mL of suspensio /// This material is a joint production of the European Commission?s Joint Research Centre (JRC) and the US National Institute of Standards and Technology (NIST). ERM-FD305 is identical to NIST SRM 1992.