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BS EN ISO 20568-2:2017 Plastics. Fluoropolymer dispersions and moulding and extrusion materials - Preparation of test specimens and determination of properties, 2017
- National foreword
- Foreword
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Preparation of test specimens
- 5 Conditioning and test conditions
- 6 Determination of properties
- 7 Testing of PTFE
- 7.1 Testing of polytetrafluoroethylene (PTFE) granular moulding and ram extrusion materials, and for PTFE resin produced from coagulation of dispersion
- 7.1.1 Standard specific gravity (SSG)
- 7.1.2 Bulk density
- 7.1.3 Particle size and size distribution
- 7.2 Testing of polytetrafluoroethylene (PTFE) dispersion
- 7.2.1 Preparation of test samples
- 7.2.2 Percentage PTFE and surfactant in aqueous dispersion
- 8 Testing of melt processable fluoropolymers
- 8.1 Testing of CPT, ECTFE, EFEP, ETFE, FEP, PFA, PVDF, PVF, VDF/CTFE, VDF/HFP, VDF/TFE, VDF/TFE/HFP
- 8.1.1 Melting-peak temperature
- 8.1.2 Melt mass-flow rate (MFR)
- 8.2 Testing of PCTFE
- 8.2.1 Zero-strength time
- 8.3 Testing of TFE/PDD
- 8.3.1 Glass transition temperature
- 8.4 Testing of melt processable fluoropolymers dispersion
- Bibliography [Go to Page]