Moisture Calculation
Water content determination provides the commercial baseline for the mass of textile materials after extraction of oil and debris through cleaning processes. Scoured wool regain defines the percentage of moisture that dry fibre must add to reach a standard equilibrium weight for international trading. Mills calculate this proportion against the oven dry mass of the cleaned material to settle financial accounts.
Commercial weight adjustments compensate for the hygroscopic nature of sheep hair which changes significantly depending on local humidity levels.
Accounting Protocol
Contracts rely on the application of a fixed percentage because raw batches arrive with erratic water levels. Producers measure the dry weight of a sample and multiply by the agreed factor to settle the invoice quantity. Sellers verify these values through laboratory testing to ensure billing aligns with physical shipment mass.
Uniform standards prevent disputes over weight fluctuations caused by environmental exposure during transit.
Mass Adjustment
Precise dry measurements undergo drying at specific temperatures until stability occurs within the sampling oven. Operators derive the final invoice weight by adding the predetermined regain percentage to the absolute dry fibre mass. This procedure establishes a consistent reference point for the cost per kilogram of textile stock.
Uniformity throughout the supply chain protects buyer capital against the accidental purchase of excess water weight.
Validation Method
Analysts apply high heat in ventilated chambers to remove all bound moisture from the fibre bundle. Results depend entirely on the initial accuracy of the dry mass weighing stage. Reliable data depends on consistent humidity levels within the storage facility prior to the sampling process.
Accurate moisture assessment dictates the final commercial outcome for every unit of production.
