A few points to note:

• you have provided information on fibre types but not the fabric structure - woven, knitted or non-woven?

• the number of cycles required will depend on the purpose for undertaking the test - are you trying to show a typical response/life performance or are you seeking to demonstrate compliance with the standard?

Best wishes

Raechel Laing

No standard time is mentioned. It totally depends on the end use of the customer. You need to mention in the report : 14.1.3 Exposure cycle, for example, 4 h UV/60°C, 4 h CON/50°C.

14.1.4 Total exposure time

Example: 

 Exposing samples to 42 cycles of 8 hours of UVA-340 ultra-violet light at a temperature of 60C followed by 4 hours of condensation (dew) at 50C for a total of 21 days of exposure.

I'm doing a research, I want to compare my results with the standards I have, but I'm not sure how many cycles are needed for my results to be valid. 

All the fabrics are knitted and the cotton is bleached. 

Thank you for the information provided, more opinions are welcome.

Then you better take control sample, and use same time and condition for both and compare.