Enrollment Deadline: 10 December 2025

Participants will report on any or all of the following properties: tensile strength, ultimate elongation and stress at 100%, and ultimate elongation and stress at 300% elongation. Testing is conducted in accordance with ASTM D3182 and ASTM D412.

Sample Description: Two 6" by 6" plaques of natural rubber. Participants must have the ability to cure these plaques at temperatures up to 177°C.

Samples ship in February, May, August, and November for a total of four shipments.

Additional Information: Participants in this test must be concurrently enrolled in CTS Test 605. Customers who order this test are required to confirm their enrollment in Test 605 or that they will add Test 605 to their order.

This test is included on CTS' Scope of Accreditation to ISO/IEC 17043.