When you look at the results report, keep these nuances in mind:
To ensure compliance with JIS K 6258, verify:
This guide covers the essential technical depth usually spread across 20+ pages of the official PDF, providing you with the actionable knowledge required to perform or analyze the test.
JIS K 6258 is the Japanese Industrial Standard for determining the effect of liquids on vulcanized or thermoplastic rubber Afnor EDITIONS
. It is widely used to evaluate how rubber materials change when exposed to oils, fuels, and industrial chemicals over time 1. Standard Scope and Versions
: Measures changes in mass, volume, dimensions, surface area, and mechanical properties (like tensile strength and hardness) after liquid immersion Intertek Inform Current Version : The most recent version is JIS K 6258:2016 , which superseded the 2003 edition Afnor EDITIONS International Equivalent : It is technically equivalent to Afnor EDITIONS 2. Test Piece Specifications
Specific shapes are required based on the property being measured: Mass/Volume/Surface Area : Typically cubes or rhombic pieces roughly on a side and Tensile Properties : Dumbbell-type or ring-type test pieces as specified in JIS K 6251 jis k 6258 english pdf exclusive
: Samples must have smooth, parallel faces; for Type A durometer tests, pieces are often piled to a thickness of 3. Immersion Procedure Submergence
: Test pieces must be fully submerged in the test liquid within a sealed container to prevent evaporation Test Liquids
: Common liquids include standard reference oils (e.g., IRM 901, 902, 903), fuels like Gasoline No. 1 (specified in JIS K 2201 ), and various industrial chemicals Temperature and Time
: Testing is typically conducted at standard laboratory temperatures or elevated temperatures (e.g., 70 raised to the composed with power C 100 raised to the composed with power C ) for durations ranging from 24 to 168 hours or more 一般社団法人日本ゴム工業会 4. Key Measurements and Calculations Mass Change ( : Calculated as a percentage change from the initial mass Volume Change ( cap delta cap V
: Determined using the displacement method (Archimedes' principle) Physical Properties
: Tensile strength and elongation are measured after immersion and compared to original values to determine the "retention rate" 5. Where to Find the English PDF The official English translation is published by the Japanese Standards Association (JSA) When you look at the results report, keep
. You can acquire a legitimate copy through the following authorized retailers: Japanese Standards Association (JSA) Webdesk – The primary source for official English versions 日本規格協会 JSA GROUP Webdesk Intertek Inform
– Provides standard documents and tracking for superseded versions Intertek Inform
– Often hosts partial previews or older versions of the standard for reference immersion times for a particular type of rubber, such as NBR or EPDM? Jis K6258 | PDF - Scribd
JIS K 6258 standard is a Japanese Industrial Standard that outlines the testing methods for determining the effect of liquids on vulcanized or thermoplastic rubber. This standard is crucial for industries using rubber in environments where contact with oils, fuels, or chemicals is common, such as automotive or hydraulic systems. Intertek Inform Key Overview of JIS K 6258
To measure physical changes (dimensions, mass, volume, surface area) and mechanical property changes in rubber after immersion in specific liquids. Current Version: The most recent version is JIS K 6258:2016 , which superseded the 2003 edition. International Equivalent: It is technically aligned with the international standard Language Availability:
While originally in Japanese, English PDF editions are available through official standards distributors like the Japanese Standards Association (JSA) Intertek Inform Testing Procedures To ensure compliance with JIS K 6258, verify:
The standard specifies various test methods depending on the property being evaluated: Immersion Testing:
Samples are fully submerged in test liquids—such as petroleum products or crude oil—under controlled temperatures and durations. Sample Specifications: Specific shapes, like
cubes for mass change or dumbbell shapes for tensile testing, are defined to ensure consistency. Evaluated Parameters: Change in mass, volume, or dimensions. Hardness changes (e.g., Type A Durometer or IRHD). Changes in tensile strength and elongation. Intertek Inform Where to Find the PDF Authorized platforms for the JIS K 6258 English PDF Japanese Standards Association (JSA) Webdesk The primary source for official English translations. Intertek Inform
Offers the standard in various formats, though availability may vary by region. AFNOR Editions Provides the standard for international purchase.
When you search for "jis k 6258 english pdf exclusive," you will encounter shady websites. Avoid these at all costs:
A true, exclusive digital PDF is not a scanned image. It is text-searchable, allowing you to quickly find terms like "immersion period" or "test temperature."