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rec20_Rev17e-2021_0.xlsx (application/vnd.openxmlformats-officedocument.spreadsheetml.sheet, 298.37 KB)
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rec20_0.zip (application/zip, 4.97 MB)
Recommendation 20 Provides three character alphabetic and alphanumeric codes for representing units of measurement for length, area, volume/capacity, mass (weight), time, and other quantities used in international trade. The codes are intended for use in manual and/or automated systems for the exchange of information between participants in international trade.