Good Delivery Gold – Silver Bullion Bars
Specifications for Good Delivery Gold and Silver Bars as set forth by the London Bullion Market Association (LBMA)
Good Delivery Gold
The gross weight of a bar should be expressed in troy ounces, in multiples of 0.025, rounded down to the nearest 0.025 of a troy ounce.
Fineness: the minimum acceptable fineness is 995.0 parts per thousand fine gold.
Marks:
- Serial number
- Assay stamp of refiner
- Fineness (to four significant figures)
- Year of manufacture (expressed in four digits)
- Minimum gold content: 350 troy ounces (approximately 10.9 kilograms)
- Maximum gold content: 430 troy ounces (approximately 13.4 kilograms)
- Recommended dimensions (approximately)
- Top Surface 255 × 81 mm
- Bottom Surface 236 × 57 mm
- Thickness 37 mm
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Good Delivery Silver Bar
The gross weight of a bar should be expressed in troy ounces in multiples of 0.10, rounded down to the nearest 0.10 of a troy ounce.
Fineness: the minimum acceptable fineness is 999.0 parts per thousand silver
Marks:
- Serial number
- Assay stamp of refiner
- Fineness, expressed to either three or four significant figures
- Year of manufacture (expressed in four digits)
- Optionally, the weight, which, if included, may be shown in either troy ounces or kilograms
- Minimum silver content: 750 troy ounces (approximately 23 kilograms)
- Maximum silver content: 1100 troy ounces (approximately 34 kilograms)
- Minimum fineness: 999.0 parts per thousand silver
- Recommended dimensions (approximately)
Length 250mm-350mm
Width 110mm-150mm
Height 60mm-100mm
