1.1 This test method covers the required procedures to evaluate the comparative ability of rubber and rubber-like compositions to withstand the effect of liquids. It is designed for testing: ( 1 ) specimens of vulcanized rubber cut from standard sheets (see Practice D3182 ), ( 2 ) specimens cut from fabric coated with vulcanized rubber (see Test Methods D751 ), or ( 3 ) finished articles of commerce (see Practice D3183 ). This test method is not applicable to the testing of cellular rubbers, porous compositions, and compressed sheet packing, except as described in 11.2.2 . 1.2 ASTM Oils No. 2 and No. 3, formerly used in this test method as standard test liquids, are no longer commercially available and in 1993 were replaced with IRM 902 and IRM 903, respectively (see Appendix X1 for details). 1.3 ASTM No. 1 Oil, previously used in this test method as a standard test liquid, is no longer commercially available and in 2005 was replaced with IRM 901; refer to Table 1 and Appendix X3 for details. TABLE 1 Specifications and Typical Properties of IRM Reference Oils Property IRM 901 A IRM 902 IRM 903 IRM 905 ASTM Method Specified Properties: Aniline Point, C (F) 124 1(255 2) 93 3(199 5) 70 1(158 2) 115 1(239 2) D611 Kinematic Viscosity (mm2/s [cSt]) 38C (100F) ... 31.934.1 ... D445 99C (210F) 18.1220.34 19.221.5 ... 10.811.9 D445 Gravity, API, 16C (60F) 28.8 1 19.021.0 21.023.0 ... D287 Viscosity-Gravity Constant 0.7900.805 0.8600.870 0.8750.885 ... D2140 Flash Point COC, C (F) 243(469) min 232(450) min 163 (325) min 243 (469) min D92 Naphthenics, C N (%) 27 (avg) 35 min 40 min ... D2140 Paraffinics, C P (%) 65 min 50 max 45 max ... D2140 Typical Properties: Pour Point, C (F) 12 (10) 12 (10) 31 (24) 15 (5) D97 ASTM Color L 3.5 L 2.5 L 0.5 L 1.0 D1500 Refractive Index 1.4848 1.5105 1.5026 1.4808 D1747 UV Absorbance, 260 nm 0.8 4.0 2.2 ... D2008 ...