Document e5K4Kg2wNDLLn8D8NDj7pGjrm
OECD polymer of low concern (PLC) criteria OECD = Organisation for Economic Co-operation and Development
Polymer
Fluoropolymer PTFE modified PTFE
Polymer composition
MW, Mn, MWD Wt-% oligomer
Electrical charge
Reactive functional groups (RFG)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Functional group equivalent weight
(FGEW)
Yes Yes Yes
Low MW leachables
Water/lipid solubility,octanol water partition
Yes
Yes
Yes
Yes
Yes
Yes
Particle size Polymer stability Thermal stability Abiotic stability Biotic stability
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Alternative Materials
PE
No
No
PS
No
PA 66
No
PMMA
No
PPS
No
PI
No
Symbols Yes No
fulfilling the PLC-criteria not fulfilling the PLC-criteria
See Glossary on Table 2 for further information.
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
g:/excel/Alternative materials valuation-Entwurf-26-07-2023
Glossary Polymer composition MW, Mn, MWD Wt-% oligomer Electrical charge
Reactive functional groups (RFG) Functional group equivalent weight (FGEW) Low MW leachables Water/lipid solubility,octanol water partition Particle size Polymer stability Thermal stability Abiotic stability Biotic stability
Polymer composition, structure & elemental composition; includ Number average molecular weight and oligomer content are use Weight % of oligomers < 1000 Da El. Ch. or ionic character can be: anionic, cationic, amphoteric, n Atom or associated group of atoms in a chemical structure that i FGEW is defined as the ratio of Mn to the number of functional g Chemical molecules, either inorganic or organic, that migrate (i.e Water solubility = extent to which a compound will dissolve in w Particles that are small enough to reach the deep lung upon inha Resistance to physical, chemical, biological transformation. Brea To be assessed when used as intended or in extreme temperatu Polymers are stable, monomers are not. Abiotic degradaton may Is assessed by whether the polymer is degraded by microorganis
ure & elemental composition; including CAS no. weight and oligomer content are used criteria for PLC assessment. MWD --> polydispersity index
n be: anionic, cationic, amphoteric, nonionic; cationic polymers associated with aquatic toxicity f atoms in a chemical structure that is intended or can be reasonable expected to undergo facile chemical reaction of Mn to the number of functional groups in the polymer norganic or organic, that migrate (i.e. leach) out of the polymer which a compound will dissolve in water; negligible water solubility < 1x10E-6 mg/L = 1 ppt ugh to reach the deep lung upon inhalation are associated with adverse health effects. Polymer particles should be > 5 m mical, biological transformation. Breaking down into smaller particles is critical. Molecules with Mn<1000 Da are capable of crossing cel s intended or in extreme temperature during disposal. Thermal stability testing may involve TGA mers are not. Abiotic degradaton may involve sunlight, water or oxygen. polymer is degraded by microorganisms under oxygenated (aerobic) or anoxic (anaerobic) conditions
ould be > 5 m a are capable of crossing cell membranes