Reference materials for the physical properties

Certified reference materials pHanal™ - calibration buffers for pH measurement

For calibration of pH measurement and validation of analytical methods determining pH
Manufactured under ISO 17034
Traceable to NIST SRM and thus to internation pH scale IUPAC
Prepared from high purity starting material and ultrapure demineralized water (resistivity ~ 18 MΩ.cm)
Temperature dependance data in the Certificate CRM
Delivered in transparent HDPE laboratory grade bottles
Expiration time 12 months
Supplied with the Certificate CRM designed in accordance with ISO Guide 31
Available in volumes 100 ml, 250 ml a 500 ml

For calibration of instuments used for the determination of conductivity and for validation of analytical methods measuring conductivity
Manufactured under ISO 17034
Prepared from high purity starting material and ultrapure demineralized water (resistivity ~ 18 MΩ.cm)
Delivered in trasparent HDPE laboratory grade bottles
Expiration time 12 months
Supplied with the Certificate CRM designed in accordance with ISO Guide 31
Available in volumes 100 ml, 250 ml and 500 ml