BS EN 543 pdf free download

BS EN 543 pdf free download. Adhesives — Determination of apparent density of powder and granule adhesives.
2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). EN 923:1 998, ? Adhesives— Terms and definitions EN 1 066, ? Adhesives— ? Sampling. EN 1 067, ? Adhesives— ? Examination and preparation of samples for testing. 3 Terms and definitions For the purposes of this European Standard, the terms and definitions given in EN 923:1 998 apply. 4 Principle The method is based on the determination of the mass of a known volume of powder or granule adhesive and is performed at a temperature of (23 ± 2) °C and (50 ± 5) % relative humidity. 5 Safety Persons using this standard shall be familiar with normal laboratory practice. This standard does not purport to address all safety problems, if any, associated with its use. It is the responsibility of the user to establish safety and health practices and to ensure compliance with any European or national regulatory conditions. 6 Apparatus 6.1 General Usual laboratory apparatus including the following: 6.2 Balance, accurate to 0,1 g. 6.3 Cylindrical container, of (1 00 ± 0,5) cm 3 capacity, and of (40 ± 2) mm internal diameter. 6.4 Funnel, as shown in Figure 1 . 6.5 Spatula 7 Sampling Take a representative sample of the adhesive to be tested in accordance with EN 1 066 and examine and prepare it for testing as described in EN 1 067 8 Procedure 8.1 Determine the mass ( m 1 ) of the empty container (6.3). 8.2 Condition the sample for at least 1 2 h at (23 ± 2) °C and (50 ± 5) % relative humidity. 8.3 Pour (1 1 5 ± 5) cm 3 of sample into the funnel (6.4) positioned coaxially over the cylindrical container at (1 1 4 + 38) mm height from the top (see Figure 1 ), taking care that the lower orifice is closed by a suitable closure. NOTE Any rigid sheet larger than the orifice is suitable. 8.4 Open the orifice and allow the material to flow into the cylindrical container. If the flow stops or becomes inconveniently slow, it can be speeded up by gently prodding the material in the funnel with a wire. Avoid compressing the material or shaking the container. 8.5 When the container is full, remove excess product by levelling off at the upper edge with a flat spatula. Avoid compressing the material or shaking the container. 8.6 Determine the mass ( m 2 ) of the full collection container. 10 Test report The test report shall include the following information: a) reference to this European Standard; b) type and designation of the adhesive tested; c) test conditions; d) results, number of determinations performed; e) any peculiarity observed during the test and any deviation from the test procedure; f) date of the test.BS EN 543  pdf download.