Certification requirements

The table below presents a general overview of the product requirements for plastic pipes which are covered by:

  • Certification in accordance with the former national standards in the Nordic region (NS-, SIS-, DS- and SFS-marked products)
  • CE-marked products
  • Products marked with the Nordic Poly Mark

The requirement level for CE-marked pipes is, as shown below, lower.

Description/ properties INSTA-CERT
Nordic Poly Mark
CE-markning
Drain Pressure Drain Pressure
Product certification:
Type test – third party
Internal control
External control – third party
++
++
++
++
++
++

+(1)
– (2)

+(1)
– (3)
Materials:
Density, PE/PP/PVC
Melt mass flow rate, PE/PP
Thermal stability, PP/PE
K value, PVC
Vicat softening temperature, PVC
Long-term strength
++
++
++
++
+
NR
++
++
++
++
++
++





NR





+ decla
Product:
Dimensions
Appearance
Marking
Surface
Longitudinal reversion
Thermal stability
Impact resistance
Ring stiffness
Pressure testing
Resistance to methylene chloride, PVC
Weather resistance
++
++
++
++
++
++
++
++
++
++
NR
++
++
++
++
++
++
++
NR
++
++
++
decla






decla


decla







+

System:
Tightness of joints
Resistance to combined soil load
and elevated temperatures (BLT)
(pipes in the ground)
Elevated temperature cycling test
(pipes in buildings)
Influence on drinking water quality
++
++
++NR
++
NR
NR++
+decla

++NR
+decla
NR
NR(4)

Comparison of requirements in different schemes:

++ Included at present level

+ Included, but at a lower level than the present level

Not included

NR. Not relevant for application

decla Manufacturer-declared value required

(1) The manufacturer determines the extent of the internal control

(2) Reaction to fire can be submitted to third party control depending on classification

(3) Water quality is likely to be included in third party type testing and control

(4) Influence on drinking water quality in relation to CE marking is still being discussed, therefore the level in relation to existing requirements in DK and FI is not known