Remarks:
Primary Reference Materials containing carbon monoxide in nitrogen are available in various compositions. Nominal fraction range: 1 ppm to 50 % (mol/mol). Within the listed range any composition can be supplied. Each mixture is prepared individually according to ISO 6142-1:2015 "Gas analysis - Preparation of calibration gas mixtures - Part 1: Gravimetric method for Class I mixtures". After preparation the composition is verified against the National Primary Standard Gas Mixtures of the Netherlands. Cylinder Pressure 11,5 MPa Cylinder Valve Outlet DIN 477 No 1 Approximate deliverable volume 0,575 m3

Intended Use:
This Primary Reference Material is intended to be used for calibrating instruments and evaluating analytical methods. E.g.: Determination of all kinds of emissions in the environment, such as pollutants and greenhouse gases; automotive test gases which are prescribed in OIML recommendation R 99 “Instruments for measuring vehicle exhaust emissions”; etc. etc.

CRM Certificate:  Example PRM.pdf

Producer: (click for contact & purchase details)
 VSL (Netherlands)

This material is produced under a valid ISO 17034 accreditation | This material is linked to statutory activities as a national metrology institute (NMI) / a designated institute (DI)

Remarks:
Primary Reference Materials containing nitric oxide in nitrogen are available in various compositions. Nominal fraction range: 0.1 ppm to 1 % (mol/mol). Within the listed range any composition can be supplied. Each mixture is prepared individually according to ISO 6142-1:2015 "Gas analysis - Preparation of calibration gas mixtures - Part 1: Gravimetric method for Class I mixtures". After preparation the composition is verified against the National Primary Standard Gas Mixtures of the Netherlands. Cylinder Pressure 11,5 MPa Cylinder Valve Outlet DIN 477 No 1 Approximate deliverable volume 0,575 m3 .

Intended Use:
This Primary Reference Materials is intended to be used for calibrating instruments and evaluating analytical methods. E.g.: Determination of all kinds of emissions in the environment, such as pollutants and greenhouse gases; automotive test gases which are prescribed in OIML recommendation R 99 “Instruments for measuring vehicle exhaust emissions”; etc. etc.

CRM Certificate:  Example PRM NO in N2.pdf

Producer: (click for contact & purchase details)
 VSL (Netherlands)

This material is produced under a valid ISO 17034 accreditation | This material is linked to statutory activities as a national metrology institute (NMI) / a designated institute (DI)

Remarks:
Certified visometric refrence liquid for validation and/or calibration of analytical methods. The stability of the viscosity CRMs is guaranteed for one year, provided the CRM is stored in the dark, closed and at a temperature between 10 oC and 35 oC. Deliverable in bottles of 250 mL.

Intended Use:
VSL provides viscosity reference materials and calibrations to clients including pharmaceutical, chemical, and manufacturing companies and accredited laboratories around the world. The basis for all viscosity measurements is the internationally accepted viscosity of double-distilled water. VSL uses this water and increasingly viscous fluids to set the constants of its Ostwald viscometers, which it then uses to determine the viscosity of unknown fluids and reference materials. We perform these measurements in a thermostatic bath that can be set to different temperatures. VSL is the only Dutch institute that has ISO/IEC 17025:2017 accreditation for viscosity from the Dutch Accreditation Council.

CRM Certificate:  not yet available

Producer: (click for contact & purchase details)
 VSL (Netherlands)

This material is produced under a valid ISO 17034 accreditation | This material is linked to statutory activities as a national metrology institute (NMI) / a designated institute (DI)

Remarks:
Primary Reference Materials containing carbon dioxide in nitrogen are available in various compositions. Nominal fraction range: 10 ppm to 50 % (mol/mol). Within the listed range any composition can be supplied. Each mixture is prepared individually according to ISO 6142-1:2015 "Gas analysis - Preparation of calibration gas mixtures - Part 1: Gravimetric method for Class I mixtures". After preparation the composition is verified against the National Primary Standard Gas Mixtures of the Netherlands. Cylinder Pressure 11,5 MPa Cylinder Valve Outlet DIN 477 No 1 Approximate deliverable volume 0,575 m3.

Intended Use:
This Primary Reference Material is intended to be used for calibrating instruments and evaluating analytical methods. E.g.: Determination of all kinds of emissions in the environment, such as pollutants and greenhouse gases; automotive test gases which are prescribed in OIML recommendation R 99 “Instruments for measuring vehicle exhaust emissions”; etc. etc.

CRM Certificate:  Example PRM CO2 in N2.pdf

Producer: (click for contact & purchase details)
 VSL (Netherlands)

This material is produced under a valid ISO 17034 accreditation | This material is linked to statutory activities as a national metrology institute (NMI) / a designated institute (DI)

Remarks:
Primary Reference Materials containing propane in nitrogen are available in various compositions. Nominal fraction range: 1 ppm to 50 % (mol/mol). Within the listed range any composition can be supplied. Each mixture is prepared individually according to ISO 6142-1:2015 "Gas analysis - Preparation of calibration gas mixtures - Part 1: Gravimetric method for Class I mixtures". After preparation the composition is verified against the National Primary Standard Gas Mixtures of the Netherlands. Cylinder Pressure 11,5 MPa Cylinder Valve Outlet DIN 477 No 1 Approximate deliverable volume 0,6 m3 depending on the composition.

Intended Use:
This Primary Reference Materials is intended to be used for calibrating instruments and evaluating analytical methods. E.g.: Determination of all kinds of emissions in the environment, such as pollutants and greenhouse gases; automotive test gases which are prescribed in OIML recommendation R 99 “Instruments for measuring vehicle exhaust emissions”; etc. etc.

CRM Certificate:  Example PRM in N2.pdf

Producer: (click for contact & purchase details)
 VSL (Netherlands)

This material is produced under a valid ISO 17034 accreditation | This material is linked to statutory activities as a national metrology institute (NMI) / a designated institute (DI)

Remarks:
The mineral oil calibration standard is prepared by VSL from a blend of Shell gas oil and Shell HVI 60 oil. The oil standards are available in glass ampoules with approximately 5 mL mineral oil calibration standard.

Intended Use:
The mineral oil calibration standard may be applied for chemical analysis according to: • ISO 9377-2:2000 “Water quality - Determination of hydrocarbon oil index - Part 2: Method using solvent extraction and gas chromatography” • EN 14039:2004 “Characterization of waste – Determination of hydrocarbon content in the range of C10 to C40 by gas chromatography” • NEN 6978:2016 “Soil quality - Quantitative determination of the content of mineral oil by using gas chromatography” • ISO 16703:2004 “Soil quality - Determination of content of hydrocarbon in the range C10 to C40 by gas chromatography

CRM Certificate:  Example VSL-002.pdf

Producer: (click for contact & purchase details)
 VSL (Netherlands)

This material is linked to statutory activities as a national metrology institute (NMI) / a designated institute (DI)

Remarks:
Primary Reference Materials containing propane in synthetic air are available in various compositions. Nominal fraction range: 1 ppm to 1 % (mol/mol). Within the listed range any composition can be supplied. Each mixture is prepared individually according to ISO 6142-1:2015 "Gas analysis - Preparation of calibration gas mixtures - Part 1: Gravimetric method for Class I mixtures". After preparation the composition is verified against the National Primary Standard Gas Mixtures of the Netherlands. Cylinder Pressure 11,5 MPa Cylinder Valve Outlet DIN 477 No 1 Approximate deliverable volume 0,6 m3

Intended Use:
This Primary Reference Materials is intended to be used for calibrating instruments and evaluating analytical methods. E.g.: Determination of all kinds of emissions in the environment, such as pollutants and greenhouse gases; automotive test gases which are prescribed in OIML ecommendation R 99 “Instruments for measuring vehicle exhaust emissions”; etc. etc.

CRM Certificate:  Example PRM in Synthetic air.pdf

Producer: (click for contact & purchase details)
 VSL (Netherlands)

This material is produced under a valid ISO 17034 accreditation | This material is linked to statutory activities as a national metrology institute (NMI) / a designated institute (DI)

Remarks:
Primary Reference Materials containing BTEX in nitrogeb are available in various compositions. Nominal fraction range:2 ppb to 1 ppm (mol/mol). Within the listed range any composition can be supplied. Each mixture is prepared individually according to ISO 6142-1:2015 "Gas analysis - Preparation of calibration gas mixtures - Part 1: Gravimetric method for Class I mixtures". After preparation the composition is verified against the National Primary Standard Gas Mixtures of the Netherlands. Cylinder Pressure 11,5 MPa Cylinder Valve Outlet DIN 477 No 1 Approximate deliverable volume 0,6 m3

Intended Use:
This Primary Reference Materials is intended to be used for calibrating instruments and evaluating analytical methods. E.g.: Determination of all kinds of emissions in the environment, such as pollutants and greenhouse gases; automotive test gases which are prescribed in OIML recommendation R 99 “Instruments for measuring vehicle exhaust emissions”; etc. etc.

CRM Certificate:  Example PRM.pdf

Producer: (click for contact & purchase details)
 VSL (Netherlands)

This material is produced under a valid ISO 17034 accreditation | This material is linked to statutory activities as a national metrology institute (NMI) / a designated institute (DI)

Remarks:
Primary Reference Materials containing Argon, Neon and Krypton in Helium with nominal fraction of 10 ppm (mol/mol) of each component. Each mixture is prepared individually according to ISO 6142-1:2015 "Gas analysis - Preparation of calibration gas mixtures - Part 1: Gravimetric method for Class I mixtures". After preparation the composition is verified against the National Primary Standard Gas Mixtures of the Netherlands. Cylinder Pressure 11,5 MPa Cylinder Valve Outlet DIN 477 No 1 Approximate deliverable volume 0,6 m3. Other compositions, including other components, are available on request.

Intended Use:
This Primary Reference Materials is intended to be used for calibrating instruments and evaluating analytical methods. E.g.: Determination of all kinds of emissions in the environment, such as pollutants and greenhouse gases; automotive test gases which are prescribed in OIML recommendation R 99 “Instruments for measuring vehicle exhaust emissions”; etc. etc.

CRM Certificate:  Example PRM.pdf

Producer: (click for contact & purchase details)
 VSL (Netherlands)

This material is produced under a valid ISO 17034 accreditation | This material is linked to statutory activities as a national metrology institute (NMI) / a designated institute (DI)

Remarks:
Primary Reference Materials containing carbon monoxide in synthetic air are available in various compositions. Nominal fraction range: 5 ppm to 10 % (mol/mol). Within the listed range any composition can be supplied. Each mixture is prepared individually according to ISO 6142-1:2015 "Gas analysis - Preparation of calibration gas mixtures - Part 1: Gravimetric method for Class I mixtures". After preparation the composition is verified against the National Primary Standard Gas Mixtures of the Netherlands. Cylinder Pressure 11,5 MPa Cylinder Valve Outlet DIN 477 No 1 Approximate deliverable volume 0,575 m3

Intended Use:
This Primary Reference Material is intended to be used for calibrating instruments and evaluating analytical methods. E.g.: Determination of all kinds of emissions in the environment, such as pollutants and greenhouse gases; automotive test gases which are prescribed in OIML recommendation R 99 “Instruments for measuring vehicle exhaust emissions”; etc. etc.

CRM Certificate:  Example PRM in Synthetic air.pdf

Producer: (click for contact & purchase details)
 VSL (Netherlands)

This material is produced under a valid ISO 17034 accreditation | This material is linked to statutory activities as a national metrology institute (NMI) / a designated institute (DI)