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Certified Reference Materials CRM
Round Robin Characterized Polymers
CRM package

Certified Reference Materials,(CRM) are highly characterized polymers resulting from round robin experiments at certified laboratories, and subject to certification by the German Federal Institute for Materials Research and Testing (BAM)*. The CRM quality certificates are full reports with the results of the different characterization methods.

Measurements of CRM are documented using statistically re-calculated data from many laboratories and methodologies: GPC; on-line and off-line GPC-Light Scattering; and on-line and off-line GPC - Viscometry. Further, the certificate includes additional non-certified data, (MALDI-TOF; NMR; DSC and in some instances Rheology data) to provide the most sophisticated set of documentation for a particular polymer available worldwide.  View here an example CRM Certificate

CRM Poly(ethylene-oxide) pss-cpeo6k  Mw 6,000 D=1.06
CRM Poly(ethylene-oxide), pss-cpeo11k  Mw 11,000 D=1.11
CRM Poly(methyl-methacrylate), pss-cmm350k  Mw350,000D=1.25
CRM Poly(methyl-methacrylate) broad,pss-cmmb100k  Mw 100,000 D=2.15
CRM Poly(methyl-methacrylate) broad, pss-cmmb350k nominal Mw 350,000 D=2.23
CRM Poly(styrene), pss-cps80k Mw 80,000 D=1.08
CRMPoly(styrene) broad, pss-cpsb180k  Mw 180,000 D=2.26
CRM Poly(styrene) broad, pss-cpsb330k Mw 330,000 D=2.25