Standards
REACH
https://echa.europa.eu/reachROHS
http://ec.europa.eu/environment/waste/rohs_eee/index_en.htmPAH
http://www.atsdr.cdc.gov/toxfaqs/tfacts69.pdfhttp://www.atsdr.cdc.gov/toxfaqs/tf.asp?id=121&tid=25
WRAS
https://www.wras.co.ukKTW
https://www.umweltbundesamt.de/sites/default/files/medien/374/dokumente/20160307ktw-leitlinie_engl_gepruft_final.pdfNSF/ANSI STAN. 61
https://www.nsf.org/newsroom_pdf/NSF-ANSI_61_watemarked.pdfUL94
http://www2.ulprospector.com/property_descriptions/UL94.asphttp://ul.com/wp-content/uploads/2014/04/ul_UL94CertificationsAndLimitations.pdf