S
WCARICOM Regional Organisation for Standards and Quality
WCentre for Metrology and AccreditationA
WCommission on Isotopic Abundances and Atomic Weights
WDepartment of Standards MalaysiaB
WDIN 7876
WFair Trade USAC
WGS1
WInstitute of Electrical and Electronics EngineersD
WIPC (electronics)
WNepal Bureau of Standards and MetrologyE
WOpen IPTV Forum
WOpen Mashup AllianceF
WRailML
WTelecommunications Industry Association