Remarks:
This CRM is aqueous solution of potassium chloride (0.001 mol kg-1). This CRM is in the form of a colorless and transparent liquid at ordinary temperature, and approximately 250 mL is kept in a glass bottle sealed in a plastic bag. This CRM should be kept in the glass bottle sealed in a plastic bag. This CRM should be stored in a clean place at a temperature between 15 °C and 30 °C.

Intended Use:
This CRM is intended for use in the calibration of electrolytic conductivity.

CRM Certificate:  NMIJ_CRM_5134a02_en.pdf

Producer: (click for contact & purchase details)
 National Metrology Institute of Japan (NMIJ), AIST, (Japan)

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:

Intended Use:

CRM Certificate:  CRM0008_01_metals multielement.pdf

Producer: (click for contact & purchase details)
 Institute of Petroleum and Natural Resources (Brazil)

This material is produced under a valid ISO 17034 accreditation

Remarks:
This CRM is aqueous solution of potassium chloride (1 mol kg-1). This CRM is in the form of a colorless and transparent liquid at ordinary temperature, and approximately 250 mL is kept in a glass bottle sealed in a plastic bag. This CRM should be kept in the glass bottle sealed in a plastic bag. This CRM should be stored in a clean place at a temperature between 15 °C to 30 °C.

Intended Use:
This CRM is intended for the calibration of electrolytic conductivity.

CRM Certificate:  NMIJ_CRM_5121b01_en.pdf

Producer: (click for contact & purchase details)
 National Metrology Institute of Japan (NMIJ), AIST, (Japan)

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:

Intended Use:

CRM Certificate:  CRM00012-01_pH 10.0.pdf

Producer: (click for contact & purchase details)
 Institute of Petroleum and Natural Resources (Brazil)

This material is produced under a valid ISO 17034 accreditation

Remarks:

Intended Use:

CRM Certificate:  CRM00010-01_pH 4.0.pdf

Producer: (click for contact & purchase details)
 Institute of Petroleum and Natural Resources (Brazil)

This material is produced under a valid ISO 17034 accreditation

Remarks:

Intended Use:

CRM Certificate:  CRM00011-01_pH 6.8.pdf

Producer: (click for contact & purchase details)
 Institute of Petroleum and Natural Resources (Brazil)

This material is produced under a valid ISO 17034 accreditation

Remarks:
The material is in a HDPE plastic bottle containing about 100 mL of spring water. The content is acidified to have a final concentration of about 2% HNO3 (w/v). The material should be stored at (18 ± 4) °C in dark. Additional information is given in the certification report. For more information see https://rm.ume.tubitak.gov.tr/urun_en.aspx?u=UoyKLzqUT+0CccOOW4y/8A==

Intended Use:
This material is intended to be used for method validation and quality control of the determination of element mass fractions in spring water.

CRM Certificate:  ume_crm_1201_certificate.pdf

Producer: (click for contact & purchase details)
 TÜBİTAK Ulusal Metroloji Enstitüsü (National Metrology Institute) (Turkey)

This material is produced under a valid ISO 17034 accreditation

Remarks:
One unit consists of about 95 mL natural groundwater spiked with ammonium dihydrogenphosphate in a flame-sealed argon filled borosilicate ampoule. The material should be stored at 18 °C ± 5 °C in the dark. *** For more information see https://crm.jrc.ec.europa.eu/p/ERM-CA616 ***

Intended Use:
This material is intended to be used for method performance control and validation purposes of the certified measurands.

CRM Certificate:  ERM-CA616.pdf

Producer: (click for contact & purchase details)
 European Commission - Joint Research Centre (Belgium)

This material is produced under a valid ISO 17034 accreditation

Remarks:
One unit consists of about 95 mL natural groundwater acidified with HNO3 to pH ~2 and spiked with Hg(NO3)2, Cd(NO3)2 and Pb(NO3)2 in a flame-sealed argon filled borosilicate ampoule. Flame-sealed argon filled borosilicate ampoule. The material shall be stored at + 18 °C ± 5 °C in the dark. *** For more information see https://crm.jrc.ec.europa.eu/p/ERM-CA615 ***

Intended Use:
This material is intended to be used for method performance control and validation purposes of the certified measurands.

CRM Certificate:  ERM-CA615.pdf

Producer: (click for contact & purchase details)
 European Commission - Joint Research Centre (Belgium)

This material is produced under a valid ISO 17034 accreditation

Remarks:
ERM-CA713 is a wastewater certified reference material, developed in support of the Water Framework Directive (WFD, 2000/60/EC). ERM-CA713 was specifically produced to include the four metals cited in the Priority Substances list (Cadmium (Cd), Mercury (Hg), Nickel (Ni) and Lead (Pb)) at concentration levels which are targeted to comply with the environmental quality standards (EQSs) referred in Directive 2008/105/EC. ERM-CA713 is a wastewater effluent of mixed domestic and industrial origin. It has been acidified and fortified with Arsenic (As), Cadmium (Cd), Chromium (Cr), Copper (Cu), Mercury (Hg), Nickel (Ni), Lead (Pb), Selenium (Se) and Zinc (Zn). This wastewater material will serve as a tailored quality control tool for laboratories involved in the mandatory monitoring of the Priority Substances prescribed under the Water Framework Directive. ERM-CA713 will supplement the series of CRMs for water testing available from the JRC-Institute for Reference Materials and Measuremen The material consists of a flame sealed borosilicate ampoule, containing 100 mL wastewater effluent acidified with HNO3 to about pH 2. The ampoules should be stored at 18°C in the dark. *** For more information see https://crm.jrc.ec.europa.eu/p/ERM-CA713 ***

Intended Use:
The main purpose of this material is to assess method performance, in particular for checking accuracy of analytical results. As any reference material, it can also be used for control charts or validation studies.

CRM Certificate:  ERM-CA713.pdf

Producer: (click for contact & purchase details)
 European Commission - Joint Research Centre (Belgium)

This material is produced under a valid ISO 17034 accreditation