BS ISO 4097 pdf free download

BS ISO 4097-2020 pdf free download.Rubber, ethylene-propylene-diene (EPDM)一Evaluation procedure.
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.isoorg/obp
— I EC Electropedia: available at http://www.electropedia.org/
4 Sampling and sample preparation
4.1 Take a laboratory sample otapproximately 1,5 kg by the method described in ISO 1795.
4.2 Prepare the test portion in accordance with ISO 1795.
S Physical and chemical tests on raw rubber
5.1 Mooney viscosity
Determine the Mooney viscosity in accordance with ISO 289-1, on a test portion prepared as indicated in 42 (without massing).
if massing is necessary, maintain the mill roll surface temperature at 50 °C ± 5 °C (for rubbers with a low Mooney viscosity, a temperature of 35 °C ± 5 DC can be used). Massing, if used, shall be mentioned in the test report.
Record the result as ML(1+4) at 125 °C unless another test temperature (100 °C or 150 °C) and/or test time (1+8) mm has been agreed by the interested parties.
5.2 Volatile matter
Determine the volatile matter content in accordance with ISO 248-1 or ISO 248-2.
5.3 Ash
Determine the ash in accordance with either method A, or method B, or method C of ISO 247-1:20 18, or
method A of ISO 247-2:2018.
6 Preparation of test mixes for evaluation
6.1 Standard test formulations
The standard test formulations are given in Table 1. in which:
a) formulation I is applicable to non-oil-extended EPDMs with a nominal ethylene content not higher than 67 % by mass;
h) formulation 2 is applicable to non-oil-extended EPDMs with a nominal ethylene content equal to or higher than 67% by mass;
c) formulation 3 is applicable to non-oil-extended low Mooney viscosity EPDMs;
d) formulation 4 is applicable to oil-extended EPDMs containing 50 or less parts by mass of oil per 100 parts of rubber;
e) formulation 5 is applicable to oil-extended EPDMS containing more than 50 but less than 80 parts by mass of oil per 100 parts of rubber;
1) formulation 6 is applicable to oil-extended EPDMs containing 80 or more parts by mass of oil per
100 parts of rubber.
C) ISO 2020 — All rights reserved
BS ISO 4097:2020
ISO 4097:2020(E)
The materials used shall be national or international standard reference materials unless no standard reference material is available in which case the materials to be used shall be agreed between the interested parties.BS ISO 4097 pdf download.