4" X 4 3/4" UN 3373 Biological Substance Category B Warning Labels Black/White (Un3373 - Biological Substance) 4" X 4"-3/4"

4" X 4 3/4" UN 3373 Biological Substance Category B Warning Labels

Shipping biological materials requires clear, standardized identification so carriers and inspectors can quickly verify package contents. Aegis Adhesives 4x4.75 inch UN 3373 labels are designed to mark Biological Substance, Category B shipments accurately and consistently throughout the transport process. These labels display the required UN 3373 designation in a highly visible diamond format, helping inspection teams and handlers immediately recognize Category B biological materials during screening, sorting, and delivery. Clear identification reduces questions and helps shipments move smoothly through medical, courier, and air-transport workflows. Printed on semi-gloss paper with a water-resistant finish, these labels are built for real shipping environments where moisture, handling, and repeated contact are common. The permanent adhesive bonds securely to cartons, specimen mailers, secondary packaging, and outer shipping boxes, helping the label remain intact and legible from origin to destination. The roll format with perforations supports efficient application at packing stations, clinics, and laboratories, allowing consistent placement without slowing down operations. These labels are well suited for diagnostic shipments, clinical testing programs, research materials, and other biological samples that fall under Category B requirements. Aegis Adhesives focuses on practical labeling solutions that prioritize clarity, durability, and ease of use. These UN 3373 labels provide straightforward identification for regulated biological shipments — helping support established procedures and minimize delays caused by unclear or incorrect marking.

Product Features

• Specifications: 4 X 4.75 inch black and white markings on a perforated roll. Includes 500 total stickers with permanent adhesive. Designed for identifying biological materials shipped under UN 3373 requirements.
• Required for Category B Shipments: Supports marking for Biological Substance, Category B packages. Aligns with identification expectations outlined by DOT, ICAO, and IATA to help reduce inspection questions or shipment delays.
• Handle With Care Visibility: Distinct diamond layout and bold text provide immediate recognition during screening, handling, and transport by carriers and inspection teams.
• Durable for Medical Shipping: Semi-gloss paper with a water-resistant finish resists smudging and moisture. Adhesive holds securely on cartons, specimen mailers, and outer packaging during transit.
• Clinic and Lab Friendly: Perforated roll supports fast application and consistent placement. Suitable for medical offices, laboratories, diagnostic kits, and research shipments following established procedures.