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Manufacturer/company:

Company Name

Thorn Lighting Limited

Durhamgate Spennymoor
County Durham
United Kingdom

Number of projects
2
Number of test pieces
4
Phone

+43 5572 390-0

Email

info@thornlighting.com

Website

www.thornlighting.com

Documents

TH 2505-1629_certificate_01.pdf
Valid until 06.06.2030
Download
TH 2505-1629_statement_01.pdf
Valid until 06.06.2030
Download

Test piece

Name of test piece/s INV 11500-840 OP PC HF 6X12
Description Size: 600 x 1200 mm
Project number TH 2505-1629
Created on 07/08/2025
Valid until 06/06/2030
Test type Particle emission (ISO 14644-1, -14)
Classfication Suitability for air cleanliness class: (ISO-Class):1

Tests & results

Particle emission (ISO 14644-1, -14)

Particle emission (ISO 14644-1, -14)

Test parameter(s)

Air Cleanliness Class

Structure-borne noise = approx. 50 Hz

1

Overall result

1

It must be pointed out, that according to ISO 14644-1 cleanrooms classes 1 to 5 have a high filter occupancy, with the result that large-surface ceiling/lighting systems cannot be used in some cases. Cleanrooms with a horizontal displacement flow form an exception to this.
The test result may be influenced by the surrounding lighting system, in particular the material pairing between the light and ceiling frame, as well as other assembly accessories. Particle emission behavior should be re-assessed in the respective assembly situation. The cut edges/back are made of very porous material. Therefore, the use of the test piece in clean/hygienic areas is considered to be critical.

Please note: Transport damages, incorrect installation, aging behavior, corrosion etc. can influence the test result.