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Quality & Regulations
Quality System
ISO 9001:2008
International quality management system
CE Marking
Declaration of performance compliant with 305/211 Regulation
Regulation on product
EN 681-1:1996
Material requirements for pipe joint seals used in water and drainage applications
STUVA Recommendations
For Testing and Application of sealing Gaskets in segmental Linings
ISO 3302-1 2014
Specification for dimensional tolerances
ISO 2230:2002
Guidelines for storage
Material properties
Property
Method
Unit
Specified value
Hardness (Micro)
ISO 48
IRHD
65 ± 5
Tensile strength
ISO 37
MPa
9 min.
Elongation at break
ISO 37
%
200 min.
Compression set 72 hours / 23 ºC
ISO 815
%
15 max.
Compression set 24 hours / 70 ºC
ISO 815
%
20 max.
Compression set 72 hours / -10 ºC
ISO 815
%
50 max.
Heat ageing 7 days / 70ºC
ISO 188
Hardness change
+8º / -5º
Tensile strength change
%
-20 max.
Elongation at break change
%
+10 / -30
Stress relaxation 7 days / 23ºC
ISO 3384
%
16 max.
Stress relaxation 100 days / 23ºC
ISO 3384
%
23 max.
Stress relaxation per logarithmic decade
ISO 3384
%
6,3 max.
Water absorption 7 days / 70 ºC
ISO 1817
%
+8 / -1
Ozone resistance
ISO 1431-1
No cracking
Algaher Gaskets
Glued Gaskets
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Hydrophilic Profiles
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Ctra. de Corella, s/n
26540 Alfaro
T. + 00 34 941 18 21 53
La Rioja - Spain
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