PROPOSED SPECIFICATION TEXT 
Secutex® H 751
		
Pos.: ……. Quantity: …..…… Unit price: ……………. Total price: ………………… 
  
Delivery of a single layered, needle-punched staple fibre nonwoven geotextile Secutex® H 751 of the company Naue GmbH & Co. KG or equivalent, for application in hydraulic engineering as a filter and separation layer according to TLG (Edition 2018) of the Federal Institute for Waterway Engineering (BAW), Karlsruhe. Installation shall follow the manufacturer’s installation guidelines. The rolls must be overlapped or sewn together at the joints and secured against wind uplift or flow forces using appropriate measures. 

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

Technical data:

Row material:	Polypropylene (PP)

Colour: 						      white

Mass per unit area:	772 g/m²
(according to EN ISO 9864)

Thickness:	6.7 mm/ ≥ 6.0 mm
(according to EN ISO 9863-1)

Max. tensile strength, md/cmd:	≥ 45 kN/m / ≥ 50 kN/m
(according to EN ISO 10319)

Elongation at max. tensile strength, md/cmd:	60 % / 45 %
(according to EN ISO 10319)

Static puncture resistance (CBR-value):	10.6 kN
(according to EN ISO 12236)

Dynamic perforation resistance:	4 mm
(according to EN ISO 13433)

Characteristic opening size (O90):	0.07 mm
(according to EN ISO 12956)

Water permeability:	VIH50-Index: 2.5 x 10-2 m/s
(according to EN ISO 11058)	flow rateH50: 25 l/s m2

Hydraulic filtration efficiency against soil type: 	A, B and C
(according to RPG und TLG (Edition 2018) of BAW)	

Resistance to dynamic perforation loads 	yes, fulfilled
for ripraps with a fall energy of 1800 Nm
on soil type B (according to RPG of BAW)

Resistance to abrasion loads:	yes, fulfilled
(according to RPG der BAW)

Roll dimensions:
Width:							      6.0 m

The following documents must be present:
-	Internal and external monitoring in accordance with DIN 18200
-	Quality management system according to EN ISO 9001
-	Current CE marking
-	Proof of product groups EPD (Environmental-Product-Declaration)  
-	Upon submission of the offer, a valid basic test report of the Federal Institute for Hydraulic Engineering (BAW), Karlsruhe, for the nonwoven geotextile according to RPG and TLG, edition 2018 must be submitted. The technical requirements are to be proven for use in hydraulic engineering according to the technical terms of delivery for geotextiles in waterways (TLG, edition 2018).
-	Predicted to be durable for 100 years in natural soils with 4 ≤ pH ≤ 9 and soil temperature ≤ 25°C on the basis of the results of test method and test duration of B.4.2.2.

The product has to be covered within one month after installation.

Proof of delivery 
Secutex® H 751
Naue GmbH & Co. KG
Gewerbestraße 2
32339 Espelkamp 
Tel.: +49 57 43 41 - 0
Fax: +49 57 43 41 - 240
info@naue.com
www.naue.com  
										Stand: 09.07.2025