Test Certificates

We are able, especially in Commercial situations, to carry out Testing related to Specific Projects, Conditions & Requirements.

The Interver Certificate below is an Example of Special Testing Carried out for a Project in Dublin during 2003 For Light Transmission, Thermal rating & Sound Attenuation.



Certificates Below

TEST FOR WATERTIGHTNESS - Carried out in accordance with BS6375 at the University of Paisley

TEST FOR AIR PERMEABILITY - Carried out in accordance with BS5368 Part: 1

TEST FOR ACOUSTIC PERFORMANCE - Carried out in accordance with BS2750 Part3 and BS5821 Part 3 at Airo Testing, Hertfordshire

SPECTROPHOTOMETRIC TEST - Carried out by Interver Special Glass in Meggen, Switzerland





Watertightness

Test at the University of Paisley. 1 July 1999 in accordance with BS6375 Part:1. Water temperature 17c classified for watertightness.

Test pressure class ( Pa ):300

Occurrence of Leakage Position of Leakage Pressure ( Pa ) Time ( min )   400 500 600 41 47 50 Leakage through fixed joint at X Upwards spray at Y Leakage through beading applied to cill at Z Limit of Watertightness ( Pa ) 300 Pa

NB    Secondary glazing units are Not Suitable for External Use or for Use as Shower Screens.



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Air Permeability

Test at the University of Paisley. 1 July 1999 in accordance with BS5368 Part:1. Air Temperature 19.5c, total window area 2.01 sq.m, this window is classified for air permeability as follows:

Test pressure class ( Pa ) : 600



NB    Since this Test was carried out we now have Available         Specialist Laminated Acoustic Glasses which Further         Reduce Noise Transmission and Reduce the Depth of         Cavity required.




Further Information Available upon Request









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Acoustic Performance

Measurements
Sound Reduction Index (R) measurements were conducted at the AIRO Acoustics Laboratory in accordance with BS 2750: Part 3:1980 and BS 5821: Part 3:1984, using a purpose built sound transmission suite. AIRO is accredited as NAMAS TESTING Laboratory No. 0486. The test was performed on 19 September 1997.

Description
The specimen filled a 1250mm wide x 1500mm high test aperture and comprised a primary and secondary window system. The primary unit consisted of a softwood frame which was glazed with 2 no 4mm fixed panes af area 520 x 1370mm each. The secondary unit consisted of a pair of horizontally sliding sashes with 6mm glazing of area 540 x 1365mm supported in a aluminium framework with an auter frame of English Ash. The cavity between the primary and secondary glazing was 150mm

Estimated mass of the glazing = 25kg/m2
Tested for and supplied by Granada Secondary Glazing Limited





The Weighed Sound Reduction Index, Rw = 45dB (BS 5821: Part 3: 1984) with an unfavourable deviation of 9.4 dB at 400 Hz

This Test certificate summarises Report No. L/2543 dated 4 November 1997



NB1    It is interesting to note that using just a 4mm Low "E" Glass a 1.868 "U" value was achieved.

NB2    This Unit was Designed Primarily for Thermal Insulation but still achieved Sound Attenuation of 37 dB Rw           General Weighted & 31 dB Rt for Traffic Noise Reduction!




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Spectrophotometric Test

 

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Granada Secondary Glazing Limited, Units 1 & 2, Carrwood Road,
Chesterfield Trading Estate, Chesterfield, S41 9QB
Registered in England and Wales Reg No. 3004583 VAT Reg No. 648 2229 28