The numbers of samples depend on testing parameters, sizes and types of samples such as bags: A4 size.
- Analysis of samples according to Notification of the Ministry of Public Health No. 295 (2005, Thailand) requires 15 samples.
- Analysis of samples according to EU regulation No.10/2011 requires 5 samples per 1 food stimulant testing.
Testing for water vapor transmission rate and gas transmission rate are required 2 samples.