Rubber is a vital material in industries ranging from automotive to consumer goods. To ensure quality, durability, and safety, this material must undergo rigorous testing. The (often searched as "jis k 6251 pdf" ) is the essential Japanese Industrial Standard for determining the tensile properties of vulcanized and thermoplastic rubber .
The standard defines which shape is appropriate based on the thickness and type of rubber. The PDF document provides a selection table based on material hardness and type.
When accessing standards, ensure you're looking at the most current version, as standards are periodically updated to reflect advances in technology and changes in industry practices. jis k 6251 pdf
The most current version is , which was updated in November 2023. It is heavily based on the international standard ISO 37 , though it contains specific modifications tailored for Japanese industrial applications. Scope and Purpose
The Japanese Standards Association (JSA) offers authorized PDF downloads and printed copies in both Japanese and English. Rubber is a vital material in industries ranging
: If your customer accepts ISO 37, they will also accept JIS K 6251 without question. However, ASTM D412 is not interchangeable — for example, ASTM D412 allows a different gauge length (25 mm vs. 20 mm in ISO/JIS), which changes elongation values.
JIS K 6251 is related to other international standards, such as: The standard defines which shape is appropriate based
A (often called a Universal Testing Machine) is required. Must have a constant rate of traverse. Equipped with accurate load cells and extensometers.
Place the specimen in the grips, start the machine at a standard speed (usually 500 ± 50 mm/min), and run until failure.