PROPOSED SPECIFICATION TEXT
Secutex® MR 281

Pos.: ……. Quantity: …..…… Unit price: ……………. Total price: ………………… 
  
Delivery of a geosynthetic needle-punched staple fiber nonwoven Secutex® MR 281 made by Naue GmbH & Co. KG or equivalent, provide as a filter and separation geotextile and professionally installed according to the manufacturer’s installation instructions. 
 
Secutex® MR 281 is an one-layered, needle-punched staple fiber nonwoven.

The following parameters are, for the demonstration of equivalence, observed:

Technical data:

Raw material:							Polypropylene (virgin PP)

Mass per unit area:			≥ 285 g/m²
(according to ISO 9864)

Thickness			≥ 2.5 mm
(according to ISO 9863-1)

Max. tensile strength, md / cmd:					≥ 21.5 kN/m / ≥ 21.5 kN/m	
(according to ISO 10319)

Elongation at max. tensile strength, md / cmd			≥ 54 % / ≥ 54 %
(according to ISO 10319) 

Puncture force							≥ 3780 N
(according to ISO 12236)

Trapezoidal Tear strength, md / cmd				≥ 450 N / ≥ 450 N
(according to ASTM D4533)

Grab strength, md / cmd						≥ 1170 N / ≥ 1170 N
(according to ASTM D4632)

Grab elongation, md / cmd						≥ 68 % / ≥ 68 %
(according to ASTM D4632)

Dynamic perforation resistance					≤ 10 mm
(according to ISO 13433)

Characteristic opening size:					90 µm (± 30 % Tolerance)
(according to ISO 12956)

Apparent Opening Size						0.10 mm
(according to ASTM D4751)

Water permeability:							vH50-Index  ≥ 4.9 x 10-2 m/s
(according to ISO 11058)						Flow rateH50  ≥ 49 l/(m2 s)

Water permeability:							Flow rateH100  ≥ 77 l/(m2 s)
(according to ASTM D4491)					PermittivityH100  ≥ 0.77 s-1

Retained strength after UV exposure
(according to ASTM D4355 (500 hrs.)				≥ 70 %
(according to EN 12224)						≥ 70 %

The following documents and verifications must be present:
•	Internal monitoring
•	Certified Quality management system according to EN ISO 9001:2015
•	Current CE marking
•	Declaration of Performance according to EN 13249:2016 ff
•	Certificate of conformity of the factory production control
•	Durability (pursuant to Annex B of EN 13249:2016) for 100 years when used without reinforcement function in natural soils with a pH value between 4 and 9 and a soil temperature of <25 ° C.
•	The product has to be covered within one month after installation.

Proof of delivery  
Secutex® MR 281      

Naue Asia Sdn. Bhd.
43300 Seri Kembangan
P-07-06, One South Street Mall
Off Persiaran Serdang Perdana
Malaysia

Tel.: +60 3 89591333
Fax.:+60 3 89592333
E-Mail: info@naue.com
www.naue.com  

20-05-2022