Standard Laboratory Conditioning Protocols for Coated Folding Boxboard Evaluation
Valid boxboard physical testing requires ISO 187 conditioning at 23°C and 50% RH to prevent hysteresis errors in stiffness, yield, and creasing metrics.
Evaluating Machine Direction Stiffness Anisotropy in High Speed Folding Boxboard Converting
Folding boxboard machine direction stiffness anisotropy governs carton opening force and high-speed feeder reliability, demanding strict ratio limits on orders.
Standard Laboratory Test Methods for Paperboard Physical Property Verification
Paperboard physical property verification requires strict ISO 187 conditioning and standardized test methods to ensure compliance and prevent customs holds.