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The PSPA (Photoluminescent Safety Products Association) is an association that, amongst other activities, recommends acceptable levels of performance for photoluminescent material in the industry.

The PSPA defines their class standards in accordance with the methodology set out in the commonly used standard of DIN 67510 pt 1 and ISO 17398 whereby luminance is measured following a specific level of excitation and then calculation made to the threshold of visibility which is 0.32mcd/m2.

It is the current recommendation of the PSPA that PSPA class A luminance be achieved as a minimum. More recent recommendations and new standards indicate that class B performance should be the minimum acceptable level and the recent Fire Regulatory Reform Act re-enforces this. Furthermore, it is worth noting that for some time now the PSPA have been discussing their own current recommendation and it is now decided that class A will be phased out and the minimum recommendation is to be PSPA class B for all applications.

The industry has spent a lot of time discussing standards in the recent past and many existing standards are part way through a review period. There are also other international standards which require specific performance, some being required at differing levels of excitation. Please contact us if you require any further performance data. Of particular note at the moment is the ISO 23601 Safety Identification - Escape Plan Signs which actually specifies a PSPA class C material as being the required photometric performance level.

Rely upon Kemco Technology Ltd to be fully aware of standards guidelines. We will continue to provide industry leading products that offer full compliance.