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Copper standards

Copper CRM is available now. USL Sp. z o.o. has expanded the offer with a new copper standard AR146

Wzorzec miedzi CRM

This copper CRM (Certified Reference Material) is available in 1 g pins and has the following parameters:

AR146 Cu standard 
% Oxygen % Sulfur
Mean = 0.0238Mean = 0.0013
Std. dev. = ± 0.0003Std. dev. = ± 0.0002

Other copper standards produced according ISO 17034 and ISO 17025 are also available:

AR145Copper 1g pin standard CRM O=0.0188% S=0.0010%
AR147Copper 1g pin standard CRM O=0.0003% S=0.0005% sold out
AR149Copper 1g pin standard CRM O=0.0314% S=0.0006% sold out

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