Resistance to fuels. A section of a sample unit not less than 300 mm long shall be immersed in a mixture of n-heptane and toluol, 70 per cent and 30 per cent by volume, for one minute. After removal, the surface shall be wiped dry with a soft cloth and shall not show any visible change which would reduce its effective performance.
Appears in 4 contracts
Samples: old.reflexallen.com, unece.org, digitallibrary.un.org