1. ISO 5725-86. Precision of test methods—Determination of repeatability and reproducibility for a standard test method by inter-laboratory tests.
2. ISO TR 9272-86. Rubber and rubber products—Determination of precision for test method standards.
3. ISO 48-79. Vulcanized rubbers—Determination of hardness.
4. ISO 7619-86. Rubber—Determination of indentation hardness by means of pocket hardness meters.
5. ISO 37-77. Rubber, vulcanized—Determination of tensile stress-strain properties.