Category: Standards

7 Mechanical characteristics 7.1 Mechanical characteristics of pipes 7.1.1 General requirements When tested in accordance with the test method as specified in table 16, using the indicated parameters, the pipe shall have mechanical characteristics conforming to one of the requirements given in table 16. 7.1.3 Mechanical characteristics of fittingsFor application area BD the fittings shall…

7.3 Micrometer, for measurement of specimen thickness. Ensure that the accuracy is 1 % of the average thickness of the specimens used. See Test Methods D5947 for descriptions of suitable micrometers.

5 Apparatus5.1 Compressive testing machine, capable of a constant rate of crosshead movement, via a pair ofparallel plates (5.2), as appropriate to the nominal diameter of the pipe in conformance with Table 1, withsufficient force and travel to produce the specified diametric deflection (see Clause 8). 5.2 A pair of hard and rigid plates, through…

5 Apparatus5.1 Loading deviceA suitable device for applying the load is a lever-arm loading machine with an arm ratio between 4:1 and 10:1. A typical example of such a device is shown in Figure 2. The lever-arm ratio R is equal to L1/L2. When the lever-arm is fitted with the top specimen grip and the…

4 Principle A test specimen having a specified precut slit is subjected to a tearing force generated by the energy stored in a pendulum of specified dimensions. The energy expended in tearing the specimen is used to calculate the tear resistance of the specimen. 5 Apparatus The test machine shall be of the Elmendorf type…

5 Performance5.1 Type-testingAll FIBC types shall be subjected to the tests as follows:a) cyclic top lift;b) compression/stacking test.At least three specimens of each FIBC type shall be submitted for testing leading to certification. Thespecimens shall tested as follows:
Specimen 1: cyclic top lift test using the FIBC having the shortest vertical dimension;
Specimen 2: cyclic…

8.2 Place the paper-plastic sandwiches horizontally in the oven at the temperature and for the length of time applicable to the material being tested. Sandwiches must not be stacked, as this may restrict movement of the plastic between the papers.8.3 At the end of the oven-exposure period, recondition the specimens a minimum of 1 h…

C.1 Principle A specimen of the material shall be mounted in a vertical plane and shall be subjected to a continuous spray of water droplets. Measurements shall be made of the coefficient of retroreflection of the wetted surface while the spray is maintained, simulating the optical behaviour of a surface in a shower of rain….

3 Principle A test piece, consisting of PVC-U pipes mounted into a PVC-U double socket coupler, is exposed to a specific cycle of internal hydrostatic pressures for specific test periods and at a specific temperature while the assembly is simultaneously subjected to a lateral bending force. 4 Apparatus 4.1 A pressure control device, connected to…

3 PrincipleA test piece consisting of a PVC-U pipe mounted into a PVC-U socket is exposed within a specified temperature range to two specified negative internal pressures for a specified test period, while the pipe is being subjected to an angular deflection in the socket and to deformation. During the test the test piece is…