{"id":311607,"date":"2024-10-19T21:25:04","date_gmt":"2024-10-19T21:25:04","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-iso-20568-22017\/"},"modified":"2024-10-25T19:19:08","modified_gmt":"2024-10-25T19:19:08","slug":"bs-en-iso-20568-22017","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-iso-20568-22017\/","title":{"rendered":"BS EN ISO 20568-2:2017"},"content":{"rendered":"
This document describes the preparation of test specimens and provides test methods to define characteristics of thermoplastic fluoropolymer resins. Results from the testing can be used as the basis for designation, material specifications or both.<\/p>\n
PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
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2<\/td>\n | National foreword <\/td>\n<\/tr>\n | ||||||
6<\/td>\n | Foreword <\/td>\n<\/tr>\n | ||||||
7<\/td>\n | 1 Scope 2 Normative references <\/td>\n<\/tr>\n | ||||||
8<\/td>\n | 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) <\/td>\n<\/tr>\n | ||||||
10<\/td>\n | 7.1.2 Bulk density <\/td>\n<\/tr>\n | ||||||
14<\/td>\n | 7.1.3 Particle size and size distribution <\/td>\n<\/tr>\n | ||||||
21<\/td>\n | 7.2 Testing of polytetrafluoroethylene (PTFE) dispersion 7.2.1 Preparation of test samples 7.2.2 Percentage PTFE and surfactant in aqueous dispersion <\/td>\n<\/tr>\n | ||||||
22<\/td>\n | 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) <\/td>\n<\/tr>\n | ||||||
24<\/td>\n | 8.2 Testing of PCTFE 8.2.1 Zero-strength time 8.3 Testing of TFE\/PDD 8.3.1 Glass transition temperature <\/td>\n<\/tr>\n | ||||||
25<\/td>\n | 8.4 Testing of melt processable fluoropolymers dispersion <\/td>\n<\/tr>\n | ||||||
26<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Plastics. Fluoropolymer dispersions and moulding and extrusion materials – Preparation of test specimens and determination of properties<\/b><\/p>\n |