Remarks:
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 concentration.

Intended Use:
The listed Primary Reference Materials (PRMs) are typical examples of standard gas mixtures used in blood gas determination, respiratory and anesthesia monitoring. Other compositions, including other components, are available on request.

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:
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 concentration.

Intended Use:
The listed Primary Reference Materials (PRMs) are typical examples of standard gas mixtures used in blood gas determination, respiratory and anesthesia monitoring. Other compositions, including other components, are available on request.

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:
This Primary Reference Materials contains nitrous oxide and oxygen. 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 are available on request.

Intended Use:
The Primary Standard Gas Mixtureis a typical example of standard gas mixtures used in blood gas determination, respiratory and anesthesia monitoring.

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:
Certified reference materials containing ammonia in nitrogen are available in a range of composition. Nominal fraction range: 30 ppm to 300 ppm (mol/mol). Within the listed range any composition can be supplied. The Certified Reference Material (CRM) will be prepared according to ISO 6142-1:2015 "Gas analysis - Preparation of calibration gas mixtures - Part 1: Gravimetric method for Class I mixtures" but the certified composition will be given on the certificate according to ISO 6143:2001 "Gas analysis - Comparison methods for determining and checking the composition of calibration gas mixtures". 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 CRM NH3.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 listed PRM is a typical example of standard gas mixtures used in leak detection.. 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:
The composition listed are on leakage measurement level. Some of these gases are used as tracers in dispersion modelling

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 typical Automotive Gas are available in various compositions. 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 oxygen 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

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 O2_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 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 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)

Remarks:
Primary Reference Materials containing sulfer dioxde in nitrogen 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 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:
Primary Reference Materials containing hydrogen sulfide in methane are available in various compositions. Nominal fraction range: 10 ppm to 1000 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 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.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)