How to Read a Bullion Assay Card and Why It's Important
An assay card is more than just packaging. It can provide important information about a bullion product, including its weight, purity, refiner, and identifying details. Learning how to read this information can help investors better understand and keep track of their bullion holdings.
What Is a Bullion Assay Card?
A bullion assay card is a document or certificate supplied with certain precious metal products, particularly minted or smaller investment bars. It is often incorporated into sealed packaging and provides information identifying the bullion product.
An assay card, depending on the refiner or mint, may include the following:
The type of metal (for example, gold or silver)
- Weight
- Purity or fineness
- Name of the refiner or manufacturer
- Serial number
- Assay number
- A hallmark indicating that the product or service belongs to a particular manufacturer.
- Product identification information
Not all types of bullion have an assay card. Some large bars are identified by stamping information right on the bar, while other bars have additional papers accompanying them.
Why Is an Assay Card Important?
The primary purpose of an assay card is to provide identifying and specification information about a bullion product. This can help investors confirm that the product corresponds with the documentation supplied by the manufacturer or seller.
For example, if a bar has a serial number, the serial number on the bar should generally correspond with the number shown on its accompanying documentation or packaging.
An assay card can also be useful when selling or transferring bullion because it provides information that can help a dealer identify the product.
However, an assay card should not be treated as conclusive proof that a piece of bullion is genuine. A counterfeit product can potentially be accompanied by counterfeit documentation.
Where additional verification is required, professional dealers may use methods such as:
- Precise weighing and dimensional checks
- Density testing
- X-ray fluorescence (XRF) testing
- Ultrasonic testing
- Other appropriate authentication methods
The appropriate testing method can depend on the type, size and characteristics of the bullion product.
How to Read the Key Information
1. Metal Type
The first step is to identify what precious metal the product has in it.
Clearly identify the type of card this is:
- Gold
- Silver
- Platinum
Confirm that the metal listed on the documentation corresponds with the bullion product you received.
For example, if the card identifies a product as gold, the physical bar should correspond to the same product description.
2. Weight
The assay card will generally indicate the weight of the bullion, commonly in grams, troy ounces, or kilograms, depending on the product.
For example:
- Weight: 10 g
Check that the stated weight corresponds with the bullion product. Gold bullion and other precious metal products are commonly sold in standardized weights.
If you need to verify the weight independently, the bullion itself should be weighed rather than the complete sealed package, because packaging and the assay card can add weight.
3. Purity or Fineness
Purity, also called fineness, indicates the proportion of the specified precious metal in the product.
Investment bullion is commonly identified using three- or four-digit fineness figures.
For example:
- 999.9 fine gold = 99.99% gold
- 999 fine silver = 99.9% silver
- 999.5 fine platinum = 99.95% platinum
The calculation is straightforward: 999.9 fineness represents 999.9 parts of precious metal out of 1,000, while .900 fineness represents 900 parts out of 1,000, or 90.0%.
This is important when comparing bullion products because purity affects the quantity of fine precious metal contained in the product.
For example, a silver product marked .900 contains 90.0% silver, not 99.9%.
4. Refiner or Manufacturer
Check the name or logo of the refiner, mint or manufacturer shown on the assay card.
The manufacturer can help you identify the product and verify its specifications through the manufacturer's published information where available.
When purchasing bullion, investors may also want to consider whether the refiner or mint is recognized in the market and whether the product has established specifications.
5. Serial Number
Some bullion products are assigned a unique serial number.
If both the bullion bar and its assay card display a serial number, compare the two numbers carefully.
If the numbers do not match, contact the seller or dealer and have the discrepancy investigated before attempting to sell or transfer the product.
A mismatched serial number does not by itself prove that bullion is counterfeit, but it is something that should be investigated.
6. Assay or Authentication Details
Some assay cards may contain an assayer's signature, certificate number, security feature, stamp or other product-identification information.
These details can indicate that the product was processed or documented according to the manufacturer's procedures.
However, the format and terminology vary between refiners and products, so investors should refer to the manufacturer's documentation when they need to understand a particular assay card.
For additional information, you can also learn about how to verify the authenticity of gold.
What If the Assay Card Is Missing?
A missing assay card does not automatically mean that bullion is counterfeit.
Some bullion products are not supplied with assay cards, while larger bars may have their key specifications and identifying information stamped directly onto the metal.
However, if a particular product is normally supplied with an assay card and yours is missing, contact the seller or dealer to determine whether documentation should have been included.
If authenticity is uncertain, do not rely on appearance alone. A professional bullion dealer can determine whether additional testing or verification is appropriate.
Assay Cards and Resale Value
When you're ready to sell your bullion, documentation can be particularly helpful. It can be easier for a dealer to set the specifications and documentation of a clearly identified product. That may make it easier to evaluate and can help make the deal easier.
Take good care of your assay cards and store them carefully together with your investment documents. Try not to open the bullion because the original packaging might get damaged, which would make the bullion difficult to authenticate and possibly harder to sell later on.
Protect Your Precious Metal Investment
Understanding how to read an assay card is a useful skill for anyone who owns physical bullion. Information such as the metal type, weight, purity, refiner, serial number and product identification details can help you maintain accurate records and better understand what you own.
Remember that an assay card is one part of the documentation associated with certain bullion products, not a substitute for professional authentication when authenticity is in doubt.
If you are considering buying physical gold, silver or platinum, Perth Bullion Exchange offers a range of precious metal products and related services. Before purchasing, take the time to understand the product's specifications, documentation, pricing and storage arrangements.
Comments
Post a Comment