b) Excluding the area of contact (1

b) Excluding the area of contact (13 ±1 mm. ( 1⁄2 ± 1⁄32 inch) measured from the bolt hole end of the test strip), the metal test strips shall not show pitting or etching to an extent discernible without magnification;(c) The water-wet brake fluid at the end of the test shall show no jelling at 23 ±5 °C (73.4 ±9 °F.);(d) No crystalline deposit shall form and adhere to either the glass jar walls or the surface of the metal strips;(e) At the end of the test, sedimentation of the water-wet brake fluid shall not exceed 0.10 percent by volume;(f) The pH value of water-wet brake fluid, except DOT 5 SBBF, at the end of the test shall not be less than 7.0 nor more than 11.5;(g) The cups at the end of the test shall show no disintegration, as evidenced by blisters or sloughing;(h) The hardness of the cup shall not decrease by more than 15 International Rubber Hardness Degrees (IRHD); and(i) The base diameter of the cups shall not increase by more than 1.4 mm. (0.055 inch).S5.1.7 Fluidity and appearance at low temperature. When brake fluid is tested according to S6.7, at the storage temperature and for the storage times given in Table II—(a) The fluid shall show no sludging, sedimentation, crystallization, or stratification;(b) Upon inversion of the sample bottle, the time required for the air bubble to travel to the top of the fluid shall not exceed the bubble flow times shown in Table II; and(c) On warming to room temperature, the fluid shall resume the appearance and fluidity that it had before chilling.