BS EN ISO 6185-3:2018 ISO 6185‑3:2014


Parameter Test liquid


Period of contact a


Table 2— Duration of Test A


IRM 901 oil a (22 ± 0,25) h


IRM 901 oil has replaced ASTM oil No. 1.


b Components of salt water: Distilled water + 30 g of sodium chloride per litre. 5.2.2.3 Resistance to ozone


Carry out the test as specified in ISO 3011 on the external face of the fabric in contact with the ambient environment as specified below. — Exposure time: 72 h — Temperature of test: 30 °C ± 2 °C — Concentration: a volume fraction of 0,5 × 10−6 — Mandrel diameter: 5 times the material thickness


There shall be no signs of cracking on completion of the test when test samples are examined under 10× magnification. 5.2.2.4 Resistance to cold All materials shall satisfy the requirements of ISO 4675 at a temperature of − 20 °C. 5.2.2.5 Tear strength


Carry out the test as specified in ISO 4674-1:2003, method B. The minimum value of tear resistance, in Newton’s, is given by: Ft = 0,375 d (1,14 p + 0,14)


In all cases, Ft shall be not less than 75 N. 5.2.2.6 Coating adhesion


Prepare and carry out the test in accordance with ISO 2411 at room temperature and a machine rate of 100mm/min ± 10mm/min. The minimum adhesion value shall be 40 N per 25mm. 5.2.2.7 Seam strength testing of buoyancy chambers


Join two pieces of material together in the same manner as used in the boat construction (method, material, dimensions) to form a 50mm wide test piece. Apply a static load at 60 °C over a period of 4 h. Where more than one method of seam construction is used in the manufacture of the boat, carry out the test for each method.


The minimum value of Fs is given by: Fs = 3,75 d (1,14 p + 0,14)


There shall be no slipping or other failure at any part of the seam.


B


Salt water b ≥ 336 h


6


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Distributed through RYA Online Standards Access under Licence No: 2020ET0001 © BSI


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