{"id":308890,"date":"2024-10-19T21:12:18","date_gmt":"2024-10-19T21:12:18","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-iso-29302017\/"},"modified":"2024-10-25T18:52:41","modified_gmt":"2024-10-25T18:52:41","slug":"bs-iso-29302017","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-iso-29302017\/","title":{"rendered":"BS ISO 2930:2017"},"content":{"rendered":"
This document specifies a method for determining the plasticity retention index (PRI) of raw natural rubber.<\/p>\n
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.<\/p>\n
PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
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2<\/td>\n | National foreword <\/td>\n<\/tr>\n | ||||||
6<\/td>\n | Foreword <\/td>\n<\/tr>\n | ||||||
7<\/td>\n | 1 Scope 2 Normative references 3 Terms and definitions <\/td>\n<\/tr>\n | ||||||
8<\/td>\n | 4 Principle 5 Apparatus <\/td>\n<\/tr>\n | ||||||
9<\/td>\n | 6 Procedure 6.1 Preparation of test pieces 6.2 Ageing 6.3 Determination of plasticity <\/td>\n<\/tr>\n | ||||||
10<\/td>\n | 7 Expression of results 8 Precision 9 Test report <\/td>\n<\/tr>\n | ||||||
11<\/td>\n | Annex\u00a0A (informative) Air change in oven for PRI determination <\/td>\n<\/tr>\n | ||||||
13<\/td>\n | Annex\u00a0B (informative) Precision statement for plasticity retention index <\/td>\n<\/tr>\n | ||||||
15<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Rubber, raw natural. Determination of plasticity retention index (PRI)<\/b><\/p>\n |