Certified Reference Materials

Certified reference materials (CRMs) used in the steel industry for the determination of the chemical composition of iron and steel products. 

For quality assurance of laboratory work is certified reference materials (CRMs) a necessary tool. They can be used inter alia to the method validation, calibration of analytical instruments or as a control sample. 

CRM also has high requirements for the certificate of reporting of measurement uncertainty and metrological traceability (SI units). 

Narema, in collaboration with Jernkontoret, is part of a European group for production and certification of reference materials, and handles sales and distribution of certified reference materials in the ECRM and JK series. As a complementary service, we distribute Certified Reference Materials prepared by other reputable Producers. 

Sold out materials
The iron ore JK 28 is sold out and will not be replaced.

New and replacing materials

JK 52 and JK 53 were released in September 2023 and are certified for 16 and 15 compounds and elements, respectively. They are available in 100g bottles.
JK 52 is a blast furnace pellets, which have been grinded to a finely divided powder. Blast furnace pellets are used in steel production and are ready for the blast furnace upon delivery.
JK 53 is a direct reduction pellets, which have been grinded to a finely divided powder. Direct reduction pellets, commonly abbreviated as DR pellets, are usually used for making steel in electric furnaces.
Both JK 52 and JK 53 are sold in bottles containing 100g in the form of finely divided homogenized powder passing through a 100 µg aperture.
The certificates for JK 52 and JK 53 can be found in the Naremas database or can be requested from crm@narema.fi.

JK 54 was released in February 2023.
JK 54 is in form of 1.1g punched discs with the dimensions 7.1 mm in diameter and 4 mm in height.
JK 54 are certified for the elements C, S, N and O and sold as 100 pieces per bottle.

JK 55 direct reduced iron was released in September 2022 and are available as a finely divided powder in 100g bottles.
JK 55 is available as powder in 100g bottles and has reference values for total and metallic iron content.

ECRM 298-2 were released in the end of November 2021 and replaces the sold out ECRM 298-1. 
ECRM 298-2 Duplex Stainless Steel have 20 certified elements and are available both as chips 100g and disc 38d x 25mm. 

Your order or request will be sent to crm@narema.fi

Download Catalogue  
CRM catalogue 2024

Here at Narema we take your privacy seriously and will only use your personal information to administer your account and to provide the products and services that you have requested from us. We will not share the information with any other organisation.

telefon+358 50 378 91 92


adressNärpiöntie 2
64200 Närpiö

vatVAT Number FI30996857

Contact Us