ISO 36-2011 pdf download.Rubber, vulcanized or thermoplastic – Determination of adhesion to textile fabrics. ISO 36 specifies a method of test for measuring the force required to separate, by stripping, two plies of fabric bonded with rubber, or a rubber layer and a fabric ply bonded together, The method is applicable when the ply surfaces are approximately plane or when they are in the form of a cylinder having an internal diameter greater than approximately 50 mm. The method is not applicable when the ply surfaces contain sharp bends, angles or other gross irregularities which cannot be excluded when cutting out test pieces. This International Standard does not apply to coated fabrics, which are tested in accordance with ISO 2411, Rubber- or plastics-coated fabrics — Determination of coating adhesion, or textile conveyor belts, which are tested in accordance with ISO 252. Conveyor belts — Adhesion between constitutive elements — Test methods. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 5893:2002, Rubber and plastics test equipment — Tensile, flexural and compression…

ISO 37-2011 pdf free download.Rubber, vulcanized or thermoplastic – Determination of tensile stress-strain properties. 10 Conditioning of sample and test pieces 10.1 Time between vulcanization and testing For all test purposes, the minimum time between vulcanization and testing shall be 16 h For non-product tests, the maximum time between vulcanization and testing shall be 4 weeks and, for evaluations intended to be comparable, the tests shall, as far as possible, be carried out after the same time interval. For product tests, whenever possible, the time between vulcanization and testing shall not exceed 3 months. In other cases, tests shall be made within 2 months of the date of receipt of the product by the customer. 10.2 Protection of samples and test pieces Samples and test pieces shall be protected as completely as possible from all external influences likely to cause damage during the interval between vulcanization and testing, eg they shall be protected from light and heat. 10.3 Conditioning of samples Condition all samples, other than those from latex, in accordance with ISO 23529 at a standard laboratory temperature, without humidity control, for not less than 3 h prior to cutting out the test pieces. Condition all prepared latex samples…

BS ISO 188:2011 pdf download.Rubber, vulcanized or thermoplastic – Accelerated ageing and heat resistance tests. BS ISO 188 specifies accelerated ageing or heat resistance tests on vulcanized or thermoplastic rubbers. Two methods are given: Method A: air-oven method using a cell-type oven or cabinet oven with low air speed and a ventilation of 3 to 10 changes per hour; Method B: air-oven method using a cabinet oven with forced air circulation by means of a fan and a ventilation of 3 to 10 changes per hour. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 37, Rubber, vulcanized or thermoplastic — Determination of tensile stress-strain properties ISO 48, Rubber, vulcanized or thermoplastic — Determination of hardness (hardness between 10 IRHD and 100 IRHD) ISO 18899:2004, Rubber— Guide to the calibration of test equipment ISO 23529, Rubber — General procedures for preparing and conditioning test pieces for physical test methods 3 Principle 3.1 General Test pieces are subjected to controlled deterioration by air at an elevated temperature and at atmospheric pressure, after…

ISO 1431-1-2012 pdf download.Rubber, vulcanized or thermoplastic – Resistance to ozone cracking – Part 1: Static and dynamic strain testing. This part of ISO 1431 specifies procedures intended for use in estimating the resistance of vulcanized or thermoplastic rubbers to cracking when exposed, under static or dynamic tensile strain, to air containing a definite concentration of ozone and at a definite temperature in circumstances that exclude the effects of direct light. Great caution is necessary in attempting to relate standard test results to service performance since the relative ozone resistance of different rubbers can vary markedly depending on the conditions, especially ozone concentration and temperature. In addition, tests are carried out on thin test pieces deformed in tension and the significance of attack for articles in service can be quite different owing to the effects of size and of the type and magnitude of the deformation. Explanatory notes on the nature of ozone cracking are given in Annex A. Reference and alternative methods for determining the ozone concentration are described in ISO 1431-3. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the…

ISO 2285-2013 pdf free.Rubber, vulcanized or thermoplastic一Determination of tension set under constant elongation, and of tension set, el ongation and creep under constant tensil le load. ISO 2285 specifies a number of methods of determining the dimensional changes In test pieces of vulcanized or thermoplastic rubber during and after tensile loading for relatively short periods under constant elongation or constant loading. The constant-elongation test is intended to measure the ability of rubbers to retain their elastic properties after extension, at a standard laboratory temperature, to a specified strain which is maintained for a specified time at the same orat a specified higher temperature and then released at the test temperature or at the standard laboratory temperature. The constant-load test specifies a method for the determination of elongation, creep and tension set of rubbers subjected to a constant load at standard laboratory temperature. The test methods are intended to measure the elastic properties of rubber in the hardness range 20 IRHD to 94 IRHD. The creep measurement is not recommended for product design or the evaluation of low-creep materials. For these, reference should be made to ISO 8013. No agreement between the results of this test and those of Iso 8013…

ISO 812-2017 pdf free.Rubber, vulcanized or thermoplastic一Determination of low-temperature brittl eness. 8.1.1 Bring the bath or test chamber to a temperature below the expected lowest temperature of non-failure. In the case of a liquid heat-transfer medium, place sufficient liquid in the bath to ensure approximately 25 mm depth or more of the liquid over the test piece(s). Pre-cool the test piece clamp by immersing it in the cooled bath or test chamber. 8.1.2 Quickly mount the test piece(s) in the test piece clamp and immerse them for 5 mm at the test temperature when using a liquid medium or for 10 mm when using a gaseous medium (see also Iso 23529). NOTE 1 For very soft materials, it might be necessary to use a device to support the test piece horizontally until just before the striker is released. The free length of the test piece(s) shall be greater than 19 mm. Test five type A or type B test pieces. If the available striking energy has the minimum value specified in 4.1.2. they may all be tested at the same time. Proper tightening of the clamp is of the utmost importance. The clamp shall be tightened so that each test…

ISO 37-2017 pdf free.Rubber, vulcanized or thermoplastic – Determination of tensile stress-strain properties. For non-product tests, thy maximum time between vulcanization and testing shall be 4 wroks and, for evaluations Intended to be comparable, the tests shall, as far as possible, be carried out after the same time intervaL For product tests, whenever possible, the time between vukanization and testing shall not exceed 3 months. In other cases, tests shall be made within 2 months of the date of receipt of the product by the customer. 10.2 Protection of samples and test pieces Samples and test pieces shall be protected as completely as possible from all external influences likely to cause damage during the interval between vulcanization and testing. e.g. they shall be protected from light and heat. 10.3 Conditioning of samples Condition all samples, other than those from latex, in accordance with ISO 23529 at a standard laboratory temperature, without humidity control, for not less than 3 h prior to cutting out thc test pieces. Condition all prepared latex samples in accordance with ISO 23529 at a standard laboratory temperature, with humidity control, for not less than 96 h prior to cutting out the test pieces. 10.4 Conditioning of…

ISO 36-2017 pdf free.Rubber, vulcanized or thermoplastic一Determination of adhesion to texti le fabrics. The stripping force required to separate two plies of fabric bonded with rubber, or a rubber layer and a fabric ply bonded together, is measured under specified conditions using test pieces of standard dimensions in the form ola flat strip. S Apparatus 5.1 Test machine, power-driven and equipped with a suitable dynamometer; it shall be capable of maintaining a substantially constant rate of traverse of the moving head during the test and shall be linked to an autographic recorder or a computer with graphic capabilities for data acquisition and processing. An inertialess dynamometer (of the electronic or optical type, for example) should preferably be used. The machine shall comply with the requirements of ISO 5893. be capable of measuring force with an accuracy corresponding to class 1 as defined in ISO 5893:2002, and have a rate of traverse of the moving grip of 50 mm/mm ± 5 mm/mm. The machine shall be fitted with grips capable of holding the test piece and the ply to be separated without slipping during the test. 5.2 Autographlc recorder, with a scale sufficiently large to permit easy interpretation of the trace,…

ISO 36-2020 pdf free.Rubber, vulcanized or thermoplastic—Determination of adhesion to textile fabrics. This document specifies a method of test for measuring the force required to separate, by stripping, two plies of fabric bonded with rubber, or a rubber layer and a fabric ply bonded together. The method is applicable when the ply surfaces are approximately plane or when they are in the form of a cylinder having an internal diameter greater than approximately 50 mm. The method is not applicable when the ply surfaces contain sharp bends, angles or other gross irregularities which cannot be excluded when cutting out test pieces. This document does not apply to coated fabrics, which are tested in accordance with ISO 2411, or textile conveyor belts, which are tested in accordance with ISO 252. 2 Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 5893:2019, Rubber and plastics test equipment — Tensile, flexural and compression types (constant rate of traverse) — Specification ISO 6133:20…

ISO 4665:2016 pdf free download.Rubber, vulcanized or thermoplastic Resistance to weathering Caoutchouc vulcanisé ou therinoplastique — Résistance aux intempéries. 7.3.2 Instrumental assessment Measure the colour of the test piece before and after each exposure stage in general accordance with Iso 18314-1. If required, also measure the colour of a file test piece or a masked area. 7.3.3 Visual assessment Compare the contrast rating of the exposed test piece and an unexposed file test piece, and if required, a masked area, after each exposure stage, in accordance with the procedure given in ISO 105-A02. 8 Changes in other appearance properties Examine each test piece visually after each exposure stage for changes In appearance using, if appropriate, the procedure given in a relevant International Standard. Some examples of parameters used to assess change in appearance are listed in Annex B. Ozone cracking shall be assessed in accordance with ISO 143 1-1. NOTE Cracking or crazing in rubber test pieces exposed outdoors can result from light ageing as well as from ozone attack. A distinction is not always possible, particularly with light-coloured rubbers. Sunlight crazing is characterized by shallow cracks and usually occurs independently of strain, whereas a threshold strain has to be…