An important foundation of standardized testing is that multiple test laboratories are able to reproduce results following the standardized test method. In prior research it was found that, when testing for the light stability of printed materials, two Xenon test chambers located in different laboratories following the same test procedure were not able to provide consistent inkjet print image fade results. Continuing investigation has shown that airflow and air quality were responsible for the discrepancy.
Matthew Comstock, Ann McCarthy, "Reproducibility Between Xenon Test Chambers in Different Laboratories" in Proc. IS&T Int'l Conf. on Digital Printing Technologies and Digital Fabrication (NIP27), 2011, pp 251 - 254, https://doi.org/10.2352/ISSN.2169-4451.2011.27.1.art00064_1