Intake Verification
Physical quality control at textile mill entry points relies on rapid moisture screening to verify raw material condition before offloading. Mill receiving yards perform gate moisture testing on incoming trucks carrying baled scutched flax or retting straw. Prompt verification prevents wet bales from entering storage warehouses where ambient heat causes internal rotting and fiber degradation.
Moisture figures collected at the gate determine whether a shipment is cleared for immediate unloading or held in quarantine.
Probe Protocol
Inspectors drive electrical resistance probes deep into multiple bales across each transport vehicle to gather representative conductivity data. Operational procedures for gate moisture testing require taking at least eight readings per shipment at varying depth levels. Handheld digital meters translate electrical resistance into moisture percentages, adjusting for ambient temperature variations.
Calibration occurs daily against standard oven drying methods to ensure meter precision across wet and dry seasons. Field operators log these measurements directly into the mill warehouse management system. Instant logging maintains traceability across incoming fiber lots.
Rejection Threshold
Contractual acceptance criteria dictate immediate batch quarantine when water levels exceed maximum allowable limits. If gate moisture testing reveals average fiber moisture above fourteen percent, the delivery lot is flagged for secondary oven verification. Shipments exceeding sixteen percent moisture face mandatory rejection at the receiving dock, returning transport responsibility to the raw material supplier.