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 carbon dioxide in synthetic air 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 0,6 m3 depending of 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 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 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 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)

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:
The CBPA-2 is a copper sulfide flotation concentrate sample originating from Sossego region, located in Pará State, Brazil. The raw material was oven-dried, crushed and pulverized to pass a 0.075 mm screen and then homogenized. A unit of CBPA-2 consists of 160 g of powdered material packaged under nitrogen atmosphere in a glass bottle and vacuum sealed in a laminated aluminum foil cromopel pouch. Analyses must be performed on samples “as is”, without drying. The contents of the bottle should be mixed (by rolling the bottle) before taking samples. The mass of samples used for analyses should be greater than the minimum size indicated for certified and indicative property values. Avoid prolonged exposure to air. Tightly recap the bottle after sampling. Where frequently using, a part of the material must be packaged in a weighing bottle, with a semi-opened lid, and kept in a desiccator under vacuum. The bottle should be stored in a desiccator under vacuum or vacuum sealed in a laminated aluminum foil pouch to minimize oxidation and moisture absorption. This material contains fine mineral particulate. Avoid dispersion of, exposure to dust by inhalation, eye contact or skin contact. Dispose residual material in accordance with regulations pertaining for inorganic chemical and mineralogical waste.

Intended Use:
This reference material is intended for use in the development, validation and quality control of analytical methods and calibration of measurement equipment for the determination of copper and other constituents in sulfide minerals.

CRM Certificate:  CBPA-2Certificate_revSeptember2016.pdf

Producer: (click for contact & purchase details)
 CENTRO DE TECNOLOGIA MINERAL, Programa Material de Referência Certificado (Brazil)

This material is produced under a valid ISO 17034 accreditation

Remarks:
The CBPA-1 is a copper sulfide ore sample originating from Sossego region, located in Pará State, Brazil. The raw material was air dried, crushed and pulverized to pass a 0.075 mm screen and then homogenized. A unit of CBPA-1 consists of 135 g of powdered ore packaged under nitrogen atmosphere in a glass bottle and vacuum sealed in a laminated aluminum foil cromopel pouch. Analyses must be performed on samples “as is”, without drying. The contents of the bottle should be mixed (by rolling the bottle) before taking samples. The mass of samples used for analyses should be greater than the minimum size indicated for certified and indicative property values. Avoid prolonged exposure to air. Tightly recap the bottle after sampling. Where frequently using, a part of the material must be packaged in a weighing bottle, with a semi-opened lid, and kept in a desiccator under vacuum. The bottle should be stored in a desiccator under vacuum or vacuum sealed in a laminated aluminum foil pouch to minimize oxidation and moisture absorption. This material contains fine mineral particulate. Avoid dispersion of, exposure to dust by inhalation, eye contact or skin contact. Dispose residual material in accordance with regulations pertaining for inorganic chemical and mineralogical waste.

Intended Use:
This reference material is intended for use in the development, validation and quality control of analytical methods and calibration of measurement equipment for the determination of copper and other constituents in sulfide minerals.

CRM Certificate:  CBPA-1Certificate_revSeptember2016.pdf

Producer: (click for contact & purchase details)
 CENTRO DE TECNOLOGIA MINERAL, Programa Material de Referência Certificado (Brazil)

This material is produced under a valid ISO 17034 accreditation

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:
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:
The BXSP-1 is a bauxite sample originating from Bela Vista region, located in São Paulo State, Brazil. The raw material was oven-dried, crushed and pulverized to pass a 0.150 mm screen and then homogenized. A unit of BXSP-1 consists of 100 g of powdered ore, packaged in a glass bottle. Analyses must be performed on samples that have been previously dried for at least 16 h in an oven controlled at 105 ± 2 ºC. The contents of the bottle should be mixed (by rolling the bottle) before taking samples. The mass of samples used for analyses should be greater than the minimum size indicated for certified and indicative property values. Avoid prolonged exposure to air. Tightly recap the bottle after sampling. The material should be stored at ambient temperature in a dry place. This material contains fine mineral particulate. Avoid dispersion of, exposure to dust by inhalation, eye contact or skin contact. Dispose residual material in accordance with regulations pertaining for inorganic chemical and mineralogical waste.

Intended Use:
This reference material is intended for use in calibration of a measurement system, assessment of a measurement procedure, quality control and value assignment to materials with similar matrices.

CRM Certificate:  BXSP-1Certificate_revJuly2018.pdf

Producer: (click for contact & purchase details)
 CENTRO DE TECNOLOGIA MINERAL, Programa Material de Referência Certificado (Brazil)

This material is produced under a valid ISO 17034 accreditation