Rat-Proof

"Rat-Proof" is a common term in international trade for packaging and warehousing requirements, meaning that goods, packaging, or containers must have measures to prevent rats from intruding, gnawing, or hiding. Usage scenarios include: transportation of goods susceptible to rat damage such as agricultural products, food, feed, and textiles; letters of credit or contracts stipulating that "packaging must be rat-proof"; goods exported to regions with severe rat infestation; and rat-proof treatment of ocean shipping containers. Notes: Rat-proof is not equivalent to airtight or moisture-proof; it focuses on physical barriers, commonly achieved with metal mesh, thick plastic, bait stations, etc. If a contract requires rat-proofing but does not specify standards, disputes may easily arise; it is advisable to specify the exact method (e.g., "packaging lined with metal foil"). The difference from "Insect-Proof" is that rat-proofing targets rodents while insect-proofing targets insects. Unlike "quarantine treatment," rat-proofing is a preventive measure, whereas quarantine treatment (such as fumigation) is mandatory pest eradication. In foreign trade, attention must be paid to the destination country's regulations on rat-proofing, such as Australia's strict rat-proof requirements for wooden packaging.