Making it all add up - International Standards for quantities and units are under revision
When is a kilogramme a kilogramme? How do you accurately measure the spectrum of light?
u
64979
ISO 80000-9
Quantities and units -- Part 9: Physical chemistry and molecular physics
Life cycle
A standard is reviewed every 5 years
Revisions / Corrigenda
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Previously
ISO 80000-9:2009
ISO 80000-9:2009/Amd 1:2011
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Now
ISO 80000-9
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