Assay Sampling Protocols for Industrial Metal Scrap Valuation
Assay sampling protocols establish true dry weight and payable metal content, directly governing settlement values, working capital allocations, and lender borrowing base limits.
Referee Laboratory
Meaning
Independent testing facilities represent the neutral third-party laboratories chosen to resolve assay disputes between a buyer and a seller. Utilizing a referee laboratory is standard practice when the difference between the seller’s and buyer’s assays exceeds agreed splitting limits. This facility’s analysis is final and binding on both parties under the commercial contract.
Dispute Resolution
Contracts specify the procedure for sending samples to the neutral facility. The sample is always an identical split of the original material prepared during shipment sampling. This prevents any bias in the material from affecting the result.
The cost of this testing is usually paid by the party whose assay is furthest from the referee’s result. This rule discourages either party from submitting extreme values during the initial trade negotiations.
Independent Testing
The neutral facility must hold appropriate international accreditations and have no commercial interest in either party. This independence ensures that the analysis is unbiased and highly accurate. The laboratory uses the same standard analytical methods, such as fire assay or wet chemistry, as the commercial labs.
This ensures that the results are directly comparable.
Final Verdict
The assay value reported by the neutral facility is used to settle the payment. This prevents prolonged disputes and ensures that transactions can be finalised quickly. The decision is binding under the contract.