Practical tip: Search the JISC catalog using the standard number; if an English translation exists it will be indicated. If you have a standards subscription at work (IHS, Techstreet, SAI Global), use it.
| Feature | JIS K 6258 | ISO 1817 | ASTM D471 | | :--- | :--- | :--- | :--- | | | Japan | International | United States | | Test Liquids | Reference fuels & oils | Similar to JIS | IRM oils, Fuel C | | Immersion Time | 22h, 70h, 168h, etc. | Identical | Similar | | Temperature Control | Specified in detail | Very similar | Broader range | | Hardness Measurement | Before & after immersion | Before & after | Before & after | jis k 6258 english pdf
The next morning, Kenji placed the printed PDF excerpt on Mr. Tanaka’s desk. Practical tip: Search the JISC catalog using the
| | Details | |-------------|--------------| | Scope | Specifies methods to measure changes in physical properties (mass, volume, dimensions, tensile strength, elongation, hardness) after immersion in test liquids. | | Test liquids | Includes reference liquids (e.g., IRM 901, 902, 903 for oils), fuel liquids, and actual service fluids. | | Test pieces | Typically small, cut from rubber sheets using specific dies. | | Immersion conditions | Temperature and time specified (e.g., 70°C for 70 hours, or 100°C for 70 hours). | | Measurements | Mass change, volume swell, change in tensile properties, and hardness change. | | Apparatus | Ovens, immersion vessels (glass or stainless steel), balance, thickness gauge, tensile tester. | | Calculation formulas | Precisely defined equations for percent changes. | | Precision statement | Repeatability and reproducibility values. | | Identical | Similar | | Temperature Control