PEXGOL PROPERTIES

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Test / Resina Standard Required Nominal Frequency
MFR ASTM D1238 ISO 1133 1.7 – 2.3 1.9 Every Batch
Density ASTM D1505 ISO 1183 926 Kg/m3 955 Kg/m3 Every Batch
Water Content ASTM D6869 ISO 15512 <0.1% <0.1% Every Batch
Every Batch
Melt Flow Rate (MFR) ASTM D1238 1.0 – 3.0 1.61 Every Batch
Carbon Black Content (CBC) ASTM D4218 2.0 – 2.6 2.4 Every Batch
Pipe
Density ISO 1183 938 kg/m3 938 kg/m3
Cross Linking Degree ISO 10147 70% 80% At least twice a batch
Elongation at break (at 20°C) ISO 6259-1, ISO 6259-3 350% >400% Every Batch
Tensile strength (at 20°C and at 100°C) ISO 6259-1 ISO 6259-3 19 N/mm219 N/mm2 >19 N/mm2 At least twice yearly
UV Resistance ISO 14531-1, Annex C Resistance to Weathering a) Thermal stability b) 95°C Hydrostatic strength c) Elongation at break Comply Type test
Longitudinal reversion ISO 2505 <3% <2.5% Every Batch
Stabilisers Migration NCh2086 At least 50% of a virgin sample >50% Annually
Oxidative Induction Time (OIT) EN 728 ISO TR 10837 >20 min at 200°C >40 min at 200°C Every Batch
Oven aging 160°C ATEC After 100 hours, at least 50% elongation compared to virgin material After 100 hours, 90% elongation compared to virgin material Twice weekly
Thermal stability at 110°C EN15632 15,000 h >25,000 Type Test
Pent Test ASTM F876 100 hs >100 hs Once per year
Squeeze-off ISO 14531 1.000 hs (Pre cooling at -50°C) >1.000 hs Type Test
RCP ISO 14531 lc/dn ≤ 4.7; a -50°C lc/dn = 0.2 a -50°C Type Test
Impact strength at 20 °C DIN 53453 No failure No failure Type Test
Impact strength, at -140 °C Surface Energy Moisture absorption at 20 °C No failure 34×10-3 N/m 0.01 mg/4d No failure 34 x 10 – 3 N/m < 0.01 mg/4d Type Test
Oxygen permeability (at 80°C) for pipe with oxygen barrier acc. To EN 15632 ISO 17455 ≤3.60 mg O2/(m²/d) ≤2.0 mg O2/(m²/d) Type Test
Thermal Properties
Value Unit Tested for Standard
Service Temperature Range -50 up to + 115 °C
Coefficient of Linear Expansion at 20°C 1,4 x 10-4 m/m*°C DIN53752
Coefficient of Linear Expansion at 100°C 2,05 x 10-4 m/m*°C
Softening Temperature + 133 °C
Specific Heat 2,3 kJ/Kg*°C DIN53765
Coefficient of Thermal Conductivity 0,35 Watt/m*°C DIN 4725
Electronic Properties
Value Unit Tested for Standard
Specific internal resistance at 20°C 1015 Ω.m
Dielectric constant at 20°C 2,3
Dielectric loss factor at 20°C/50Hz 1 x 10-3 DIN53483
Rupture voltage at 20°C 100 kV/mm

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