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From IUPAC Green Book 5th Edition

Welcome to the IUPAC Green Book

The IUPAC Recommendation on Quantities, Units and Symbols in Physical Chemistry, or Green Book, has gone digital. Please access the sections of the book below.

  1. PHYSICAL QUANTITIES AND UNITS
  2. DEFINITIONS AND SYMBOLS FOR UNITS
  3. CONVERSION OF UNITS
  4. TABLES OF PHYSICAL QUANTITIES
  5. UNCERTAINTY
  6. REFERENCES
  7. GREEK ALPHABET
  8. INDEX OF SYMBOLS
  9. SUBJECT INDEX