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sklademVydáno: 2017
ISO 2930:2017
ISO 2930:2017-Rubber, raw natural — Determination of plasticity retention index (PRI)
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| Označení normy: | ISO 2930:2017 |
| Počet stran: | 9 |
| Vydání: | 5 |
| Vydáno: | 2017 |
DESCRIPTION
ISO 2930:2017
ISO 2930:2017 specifies a method for determining the plasticity retention index (PRI) of raw natural rubber. The PRI is a measure of the resistance of raw natural rubber to thermal oxidation. A high resistance to thermal oxidation is shown as a high value of the index. PRI is not an absolute value and cannot give an absolute classification of plasticity number of different natural rubber after oxidation.