BF MATERIALS   Suffix Requirements Grade 1A Grade 2 Grade 3 Grade 4 Grade 5 Grade 6 Grade 7 Grade 8 B14 Compression set, ASTM D 395, Method B, max. %, 22 h at 100°C   25             B34 Compression set, ASTM D 395, Method B, max. %, 22 h at 100°C   25             EO14 Fluid resistance, ASTM D 471, Oil No. 1, 70 h at 100°C                   Change in hardness, max. points   ± 10               Change in tensile strength, max. %   -25               Change in ulitmate elongation, max. %   -45               Change in volume, %   -10 to +10             EO34 Fluid resistance, ASTM D 471, Oil No. 3, 70 h at 100°C                   Change in hardness, max. points   -20               Change in tensile strength, max. %   -45               Change in ulitmate elongation, max. %   -45               Change in volume, %   0 to +60             F19 Low-temperature brittleness, ASTM D 2137, Method A, 9.3.2, nonbrittle after 3 min at -55°C   pass             K11 Adhesion, ASTM D 429: Method A, MPa   B             Z (Special requirements). Any special requirements shall be specified in detail, including test methods.   ABasic properties only - no suffix requirements for Grade No. 1. BMaterials are available that can be bonded to metal during vulcanization. Becauase of the wide variety of cojpunts in use, combined with manifold end-use requirements, no values are shown. Test Methods D 429 and requirements should be agreed upon by the supplier and user.