LK Packaging 13 x 18 Lab-Loc® Tamper-Evident 2-Wall Specimen Bags with Adhesive Closure 2 Mil

Sized 13″ × 18″ 2-mil, this tamper-evident security bag is well suited to secure transport of cash, evidence, and sensitive items.

LK Packaging 13 x 18 Lab-Loc® Tamper-Evident 2-Wall Specimen Bags with Adhesive Closure

LK Packaging 13 x 18 Lab-Loc® Tamper-Evident 2-Wall Specimen Bags with Adhesive Closure provide large-format tamper-evident containment for laboratories using electronic requisitioning systems that do not require a physical document pocket for paper form transport. Manufactured from 2 mil polyethylene with a 2-wall construction, these bags feature an adhesive tamper-evident closure and LK Packaging biohazard identification for OSHA compliance. The 13 x 18 format accommodates anatomical pathology specimens, large culture containers, multi-tube panel sets, and 24-hour urine containers that exceed standard bag capacity. The 2-wall design without a document pocket creates a flatter profile for automated specimen handling while maintaining chain-of-custody integrity through the tamper-evident adhesive seal.

Large-Format 2-Wall Adhesive Closure for Digital Pathology Workflows

Anatomical pathology laboratories operating fully electronic specimen ordering systems — where surgeons enter tissue resection orders directly into the EMR before the OR, and pathology staff scan barcoded specimen container labels at intake without paper forms — benefit from 2-wall bags that omit the document pocket without losing tamper-evident security. The 13 x 18 format accommodates large tissue specimens while the 2-wall construction reduces bag bulk, making it easier to load bagged specimens into refrigerated transport units and automated specimen storage systems. The adhesive closure creates a complete seal across the 13-inch opening for reliable containment of heavy and irregular specimens.

13 x 18 Dimensions for Large Anatomical and Multi-Container Collections

The 13 x 18 inch bag provides substantial capacity for formalin-fixed tissue jars, large culture media bottles, environmental sampling kits with multiple collection containers, and multi-tube blood collection sets for comprehensive HLA or infectious disease workups. At 2 mil gauge, the polyethylene construction withstands the weight and occasional rough handling of large specimen loads without seam failure. The adhesive closure line spans the full 13-inch width, ensuring a complete seal even when bulky contents press against the closure area from the interior. Biohazard identification printed on the bag exterior confirms OSHA compliance for large-volume biohazardous specimen transport.

Remote and Field-Based Large Specimen Collections With Tamper-Evident Bags

Environmental testing organizations, occupational medicine programs, and veterinary diagnostic labs collecting large field samples — soil cores, water samples, large tissue biopsies from veterinary patients — use 13 x 18 adhesive closure 2-wall bags for secure secondary containment during ground transport from collection site to testing facility. The tamper-evident adhesive seal provides chain-of-custody documentation from field collection through laboratory intake. The 2-wall design is preferred in non-clinical settings where paper documentation is not typically co-bagged with the specimen, simplifying packaging workflow for field collection staff who are not trained laboratory personnel.

How Does the 13 x 18 2-Wall Format Compare to 3-Wall Adhesive Closure Bags?

The 13 x 18 2-wall adhesive closure bag (LABAC221318) omits the document pocket found in the 3-wall format, creating a simpler bag structure with slightly reduced material cost. For electronic-workflow facilities where no paper requisition needs to travel with the specimen, the 2-wall format provides equivalent tamper-evident containment with a flatter, more compact profile. Facilities that require paper requisition co-transport should select the 3-wall LABAC21517 format instead. Both formats use the same 2 mil polyethylene construction and adhesive closure system.

Purchasing Large-Format 2-Wall Adhesive Closure Bags at Wholesale

LK Packaging 13 x 18 Lab-Loc® Tamper-Evident 2-Wall Specimen Bags with Adhesive Closure (LABAC221318) are available through PrismPak.com and authorized wholesale distributors. Pathology laboratories, environmental testing services, and veterinary diagnostic facilities can request case quantity pricing. Contact your LK Packaging distributor for current pricing and availability for the LABAC221318 format.

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