En række vandige referencestandarder for proces- og instrumentkalibrering og stoffer, der matcher matrixkomponentprøver, der analyseres; bruges til at bestemme fraværet af interferens fra matrix, reagenser og udstyr.
VHG Labs offers ISO 17034 metallo-organic and aqueous inorganic certified reference materials for oil, fuel, and coolant analysis as well as a variety of certified standards for environmental, pharmaceutical, and industrial applications