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A standard ounce is slightly less than a troy ounce, at 28.35 grams. The troy ounce is to this day the standard unit of measurement in the precious metals market to ensure purity standards.

Mass or weight is measured in grams (g) and kilograms (kg). Capacity is measured in millilitres (ml) and litres (l). Weight is measured in grams (g) and kilograms (kg).

Mass or weight is measured in grams (g) and kilograms (kg). Capacity is measured in millilitres (ml) and litres (l). Weight is measured in grams (g) and kilograms (kg).