Tiêu chuẩn quốc tế

• Số hiệu / Standard Number: ISO 13821:2020
• Năm ban hành / Publication date: 2020
• Tình trạng / Status: A - Còn hiệu lực
• Tên tiếng Anh / Title in English: Corrugated fibreboard — Determination of edgewise crush resistance — Waxed edge method
• Thay thế cho / Replace: ISO 13821:2002
• Chỉ số phân loại Quốc tế (ICS) / By field: 85.060 - Giấy và cactông
• Số trang / Page: 14

Phạm vi áp dụng / Scope of standard

This document specifies a method for the determination of the edgewise crush resistance of corrugated fibreboard. The force is applied in the direction of the flute axis.

This method is applicable to single-wall (double-faced), double-wall, and triple-wall corrugated fibreboard. It may also be used to test samples taken from corrugated cases and other converted products.

While the method is applicable to waxed corrugated fibreboard, care must be taken that the heat used in the waxing step does not affect the corrugated structure. This is controlled by observing that failure during the test still occurs away from the loaded edges.