Paragraph 44 DEFINITIONS OF TERMS IN THIS ANNEX
“Effective gramme” (0) of “special fissile material” or “other fissile material” means:
a.
For plutonium isotopes and uranium-233, the isotope weight in grammes;
b.
For uranium enriched 1 per cent or greater in the isotope U-235, the element weight in grammes multiplied by the square of its enrichment expressed as a decimal weight fraction;
c.
For uranium enriched below 1 per cent in the isotope U-235, the element weight in grammes multiplied by 0.0001;
d.
For americium-242m, curium-245 and -247, californium-249 and -251, the isotope weight in grammes multiplied by 10;