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Standard Specfication of PTFE

Hindustan Nylons

PolyTetraFluoroEthylene-PTFE is standardized worldwide by many countries as ASTM (USA) ISO (Europe), JIS (Japan), Indian Standard (IS), & British Standard (BS). The research Institute & Industries mostly follow ASTM & ISO standards for standardizing & defining PTFE Resin / Primary Forms, Test Procedure of PTFE Resin / Primary Forms & PTFE Products / Secondary Forms.

ASTM Standards of PTFE
A. Specifications PTFE Resin Filled PTFE Compound- Primary Forms
Sr. No. Title No.
1 PTFE Resin D - 1457
D - 4894
2 Filled PTFE Compounds D - 4745
B. Test Procedure PTFE Resin - Primary Forms
1 Apparent Density D - 1895
2 Bulk Factor D - 1895
3 Pourability D - 1895
4 Filler Content E - 1131
5 Particle Size D - 4894
6 Shrinkage D- 4894
7 Flow Index (Powder Flow) D - 1855
8 Colour / Appearance D - 6290
9 Water Content D - 6980
C. Specifications PTFE Products Secondary Forms
1 PTFE Molded Basic Shapes D - 3294
2 PTFE Rod-Molded D - 1710
3 PTFE Bush-Molded D - 1710
4 PTFE Rod- Ram Extruded D - 3295
5 PTFE Tube- Ram Extruded D - 3295
6 PTFE MoldedSheet D - 3294
7 PTFE Skived Sheet D - 3308
8 PTFE Tube Paste Extruded D - 1710
D. Test Procedure PTFE Products - Secondary Forms
1 Density D - 792
2 Tensile Strength D - 638
3 Elongation D - 638
4 Compressive strength D - 695
5 Deformation Under Load D - 621
6 Flexural strength D - 790
7 Impact Strength D - 236
8 Hardness Shore D D - 2240
9 Coefficient of Friction D - 1894
10 Water Absorption D - 570
11 Heat Resistance D - 648
12 Continuous Service Temperature D - 648
13 Thermal Conductivity D - 696
14 Linear Thermal Expansion D - 696
15 Die-electric Strength D - 149
16 Volume Resistivity D - 257
17 Surface Resistivity D - 258
18 Dimensional Stability D-1710
19 Chemical Resistance D - 543
20 Wear Rate D - 137
British Standards PTFE Resin (Primary Form) Products(Secondary Form)
1 Specification of PTFE Materials (Primary Forms) BS ISO 12086
2 Test Procedures of PTFE Resin (Primary Forms) BS ISO 12086
3 Specification of PTFE Parts (Secondary Forms) BS EN ISO 13000
4 Test Procedures of PTFE Parts (Secondary Forms) BS EN ISO 13000
Indian Standards - PTFE Resin (Primary Form)
1 Polytetrafluoroethylene (PTFE) Materials for Moulding Extrusion IS-14635