COMAR | Materials from GUM

Reference Materials from: GUM

must be: produced under an ISO 17034 accreditation produced by an NMI / DI one, or both options | certified RM

	Producer	RM Code	Name	Item	Updated
1	GUM	1.1	n-Heksane	liquid density standard	09-02-2024
	Properties: density at 20 °C 660 kg/m3			Remarks: Liquid temperature : 15 °C to 25 °C Intended Use: This certified reference material is intended for the calibration and checking of density meters for liquids. CRM Certificate: not yet available
	Producer: (click for contact & purchase details) Central Office of Measures (Poland) This material is linked to statutory activities as a national metrology institute (NMI) / a designated institute (DI)
	Public link to this factsheet: www.comar.bam.de/rm/508459
2	GUM	1.2	n-Heptane	liquid density standard	09-02-2024
	Properties: density at 20 °C 684 kg/m3			Remarks: Liquid temperature : 15 °C to 25 °C Intended Use: This certified reference material is intended for the calibration and checking of density meters for liquids. CRM Certificate: not yet available
	Producer: (click for contact & purchase details) Central Office of Measures (Poland) This material is linked to statutory activities as a national metrology institute (NMI) / a designated institute (DI)
	Public link to this factsheet: www.comar.bam.de/rm/508460