ASTM D5902
Standard Test Method for Rubber—Determination of Residual Unsaturation in Hydrogenated Nitrile Rubber (HNBR) by Iodine Value
Available Formats:
- Availability: Immediate Download
- Language: English
- License Type: Single User
- Updates: Not Included
- Availability: Request Quote
- Language: English
- License Type: Enterprise / Multi User
- Updates: Included
About This Item
ASTM D5902 is the ASTM standard for determining residual unsaturation in hydrogenated nitrile rubber (HNBR) by iodine value. It provides a technical basis for evaluating how much unsaturation remains after hydrogenation, which can be important for material characterization, comparison, and quality control. For buyers and users of rubber test standards, ASTM D5902 helps define a consistent test method for assessing HNBR properties in a repeatable way.
What is ASTM D5902?
ASTM D5902, titled Standard Test Method for Rubber—Determination of Residual Unsaturation in Hydrogenated Nitrile Rubber (HNBR) by Iodine Value, is a test method focused on measuring residual unsaturation in HNBR. In practical terms, it describes a laboratory approach for using iodine value as the basis for evaluation. This makes the standard useful when a defined method is needed to compare HNBR materials, support testing programs, or align internal procedures with an ASTM standard.
Where is ASTM D5902 used?
This standard is commonly used in rubber testing laboratories, quality control settings, and materials evaluation workflows where hydrogenated nitrile rubber is being assessed. It is especially relevant when HNBR compounds or finished rubber materials need a consistent measure of residual unsaturation. ASTM D5902 may also support supplier qualification, product comparison, and routine verification in technical environments that rely on repeatable test methods for rubber performance and material consistency.
Why is ASTM D5902 important?
ASTM D5902 matters because it gives users a standardized way to evaluate a key chemical characteristic of HNBR. That consistency supports more reliable test results, clearer product specifications, and better communication between suppliers and purchasers. In practice, it can help reduce ambiguity in testing and improve confidence in material comparisons, especially when residual unsaturation is part of acceptance criteria, quality control, or engineering review.
- Residual unsaturation measurement for HNBR
- Iodine value-based test method
- Rubber material characterization
- Quality control and comparison testing
- Standardized ASTM laboratory procedure
- Publication Date: 2023-09-28
- Publisher: ASTM
Need This Standard?
Request a personalized quote today to receive the latest edition in PDF or other available formats.
Need This Standard?
Request a personalized quote today to receive the latest edition in PDF or other available formats.
Summarize with AI
Get quick summaries using your favorite AI engine.
Online Standart Disclaimer
OnlineStandart.com is an authorized reseller of international standards, operating through partnerships with authorized distributors. We do not own the copyrights or trademarks of the standards we sell, including but not limited to those of API, ASHRAE, BSI, SAE, ASTM, IEEE, IEC, ASME, ISO, and others.
All product names, logos, and brands are the property of their respective owners and are used for identification purposes only; their use does not imply endorsement. OnlineStandart.com is not affiliated with or endorsed by any standards development organization unless explicitly stated. The content of this document is for informational purposes only and is intended to promote our licensed reselling services.
Online Standart does not host, distribute, or link to free, unlicensed, or uncertified copies of copyrighted standards. Every document we deliver is a licensed copy obtained through authorized channels and supplied with full licensing documentation. The “Free PDF Download” option on our product pages refers to this free informational document — never to a free copy of any standard.