The Japanese Industrial Standard (JIS) K 6258 is a crucial document for any professional involved in the manufacturing, quality control, or research of rubber materials. Formally titled (in English), this standard provides the definitive testing methodology for evaluating how rubber behaves when exposed to various liquids, including oils, fuels, and chemical solvents.
(such as IRM 901, IRM 902, and IRM 903) Simulated fuels (such as Reference Fuel A, B, C, or D) Chemical reagents (acids, alkalis, or distilled water) 3. Immersion Parameters
): Measures fluid absorption (swelling) or the extraction of soluble ingredients like plasticizers (shrinkage). jis k 6258 english pdf
What specific (e.g., EPDM, NBR, FKM) are you testing? What test liquid or reference oil are you planning to use?
Crucial for parts like seals that must maintain a specific fit to prevent leaks. The Japanese Industrial Standard (JIS) K 6258 is
: To evaluate the resistance of rubber materials to swelling, shrinkage, or degradation when exposed to industrial liquids. Key Measurements :
Updated to align as a modified version () of ISO 1817:2015 . Includes thermoplastic elastomers. 3. Summarized Test Methodology Crucial for parts like seals that must maintain
According to standard guidelines (cross-referenced with JIS K 6250 for general procedures), rubber specimens must be cut to specific geometric shapes—often sheets with a flat, uniform thickness of roughly Immersion Protocol
| Revision Date | Revision Type | Key Notes | |---|---|---| | | Established | The first version, "Testing methods of the effect of liquids for vulcanized rubber," was introduced. | | 1998-03-20 | Revised | Amendment 1 introduced modifications to the initial standard. | | 2003-05-20 | Revised | The scope was expanded to include "thermoplastic rubber," and the title was updated. This version was technically equivalent to ISO 1817:2005. | | 2016-08-22 | Revised | The most recent major revision. This version is aligned with ISO 1817:2015. | | 2021-10-20 | Confirmed | The 2016 version was confirmed as still being valid and appropriate. |
: Offers the Rubber, vulcanized or thermoplastic - Determination of the effect of liquids standard for purchase. JIS K 6258: Liquid Effects on Rubber | PDF - Scribd