BS 4060:2006 pdf download.Pressed wool felts -Specification.
7.2 Sampling
7.2.1 Unless otherwise specified in the relevant test method (test methods are outlined in Annex C and Annex D, as well as referred to in Table I, Table 2, Table 3, Table 4, Table 5, Table 6 and Table 7), samples of the felt shall be taken from each lot of 200 m2 or less.
7.2.2 As a minimum, samples shall be taken either 1 m from either end of a roll or 10 cm from either end of a sheet.
7.2.3 Each sample shall consist of a strip or strips cut from across the full width of the felt to give a total mass sufficient to perform all tests required and of adequate dimensions appropriate to the tests to be performed.
For chemical tests, the sample shall be cut into cubes having sides no more than 5 mm long. The cubes shall be conditioned for 24 h in accordance with 7.3. The cubes shall be mixed together and a number of them randomly selected to give a test specimen of iiui.ss appropriate to the test method under consideration.
7.3 Conditioning and testing atmosphere
Unless otherwise specified in the relevant test method, conditioning and testing shall be carried out in the standard temperate atmosphere specified in BS EN ISO 139:2005:, i.e. a relative humidity of (65 ± 4)% and a temperature of (20 ± 2) °C.
Laboratory samples shall be conditioned by exposing them for at least 24 h to the conditioning atmosphere.
7.2.1 Unless otherwise specified in the relevant test method (test methods are outlined in Annex C and Annex D, as well as referred to in Table I, Table 2, Table 3, Table 4, Table 5, Table 6 and Table 7), samples of the felt shall be taken from each lot of 200 m2 or less.
7.2.2 As a minimum, samples shall be taken either 1 m from either end of a roll or 10 cm from either end of a sheet.
7.2.3 Each sample shall consist of a strip or strips cut from across the full width of the felt to give a total mass sufficient to perform all tests required and of adequate dimensions appropriate to the tests to be performed.
For chemical tests, the sample shall be cut into cubes having sides no more than 5 mm long. The cubes shall be conditioned for 24 h in accordance with 7.3. The cubes shall be mixed together and a number of them randomly selected to give a test specimen of iiui.ss appropriate to the test method under consideration.
7.3 Conditioning and testing atmosphere
Unless otherwise specified in the relevant test method, conditioning and testing shall be carried out in the standard temperate atmosphere specified in BS EN ISO 139:2005:, i.e. a relative humidity of (65 ± 4)% and a temperature of (20 ± 2) °C.
Laboratory samples shall be conditioned by exposing them for at least 24 h to the conditioning atmosphere.
