Jis K 6251 Pdf [2021] -

The testing principle, as defined by JIS K 6251, is straightforward: the test piece is stretched at a constant speed using a tensile testing machine until it breaks. The machine records both the force applied and the elongation of the test piece during the entire process.

Miniaturized micro-shapes explicitly detailed for instances where material is scarce, or samples must be harvested from complex finished components like automotive tires or hoses. Testing Equipment Requirements

Unlike ISO or ASTM, JIS standards are managed by the . They do not typically offer free public access. jis k 6251 pdf

Disclaimer: This post is for informational purposes. Always refer to the official standard document for certified testing.

JIS K 6251 is the Japanese Industrial Standard for determining the tensile stress-strain properties of vulcanized and thermoplastic rubbers. GlobalSpec Standard Overview Official Title: The testing principle, as defined by JIS K

The standard is highly specific about how tests are conducted to ensure global consistency.

NITE provides to JIS standards via the JIS Search Service. However, printing, saving as PDF, or copying is disabled. This is ideal for reference but not for internal distribution to your testing lab. Testing Equipment Requirements Unlike ISO or ASTM, JIS

JIS K 6251 defines several shapes (dumbbell shapes) for test specimens, labeled based on their size and geometry. Common types include:

Self-tightening grips (pneumatic or roller type) are essential. Standard manual screw grips fail because rubber thins out as it stretches, causing slippage.

A constant-rate-of-grip-separation device (constant rate of traverse).

If you work in a global manufacturing environment, you have likely encountered similar test standards from other regions. JIS K 6251 is to several other major rubber testing standards, though differences in details exist: