BS EN 13880-8:2003 – Hot applied joint sealants — Part 8: Test method for the determination of the change in weight of fuel resistance joint sealants after fuel immersion
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 13880-2, Hot applied joint sealants — Part 2: Test method for the determination of cone penetration at 25 ° C. prEN 13880-6:2003, Hot applied joint sealants — Part 6: Test method for the preparation of samples for testing. prEN 14188-1:2001, Joint filler and sealants — Part 1: Specifications for hot applied sealants.
3 Terms and definitions
For the purposes of this European Standard, the terms and definitions given in prEN 14188-1:2001 and prEN 13880-6:2003 apply.
4 Principle The change in mass of fuel resistant type sealants is measured to verify they do not deteriorate to an unacceptable degree as a result of contact with spilt fuel.
A test specimen is weighed and then placed in a small container together with the standard test fuel. This assembly is then conditioned in a water bath for a period of time, after which the specimen is removed from the small container, dried and re-weighed. The change in mass is calculated and reported accordingly.
5 Apparatus
5.1 Laboratory balance, capable of weighing up to 400 g of sample to an accuracy of 0,01 g.
5.2 Controlled environment, capable of maintaining the prepared specimen and fuel immersion containers at (23 2) ° C. 5.3 Metal container, consisting of a sample tin in which the specimen is tested, cylindrical in shape and having a flat bottom with a capacity of approximately 100 ml. The inside dimensions are nominally 56 mm in diameter and 35 mm in depth. To facilitate pouring the right amount of materials, a mark is made at a depth of approximately 30 mm.
5.4 Small container, manufactured from 1 mm metal sheet with nominal internal dimensions of 150 mm × 150 mm × 150 mm deep with a closely fitting lid which can be sealed with adhesive tape. 5.5 Standard fuel, comprising a mixture of 70 (Vol-%) iso-octane and 30 (Vol-%) industrial grade toluene shall be used according to prEN 13880-2.
5.6 Water bath, having a capacity of at least 10 l with a perforated shelf not less than 50 mm from the bottom of the bath and capable of maintaining the specimen and assembly at the required test temperatures of (50 1) ° C or (35 1) ° C according to prEN 14188-1.
5.7 Electric fan, industrial electric fan with a diameter of 300 m, capable for a stream of air having an average velocity of (120 30) m/min.
BS EN 13880-8:2003 – Hot applied joint sealants — Part 8: Test method for the determination of the change in weight of fuel resistance joint sealants after fuel immersion