ASTM D2619 Test Method for Hydrolytic Stability of Hydraulic Fluids (Beverage Bottle Method)
5. Apparatus
5.1 Air Oven, convection, adjusted to 93 +/- 0.5°C (200 +/- 1°F).
5.2 Pressure-Type Beverage Bottles, 200 mL (7-oz).
5.3 Capping Press, for bottles.
5.4 Rotating Mechanism, for holding bottles and rotating end over end at 5 rpm in oven.
5.5 Centrifuge, 1500 rpm.
5.6 Centrifuge Tubes, cone-shaped, 100-mL.
5.7 Filtration Assembly, stainless screen/glass, membrane type 47-mm diameter.
5.8 Typewriter Brush.
5.9 Separatory Funnel, 125-mL.
5.10 Microscope, for 20x magnification.
5.11 Balance, sensitive to 0.2 mg.
5.12 Caps, for sealing bottles.
5.13 Inert Seal, for cap gasket.
5.14 Membrane Type Filter, cellulosic, 5-µm porosity, 47-mm diameter.
6. Reagents and Materials
6.1 n-Heptane.
NOTE 3 - Warning: Flammable, harmful if inhaled, skin irritant on repeated contact, aspiration hazard; see A1.1.
6.2 Phenolphthalein, 1 % alcoholic solution.
6.3 Potassium Hydroxide (KOH), 0.1 N aqueous solution standardized to within 0.0005 N.
NOTE 4 - Warning: Caustic.
6.4 1,1,1-Trichloroethane.
NOTE 5 - Warning: Harmful if inhaled, high concentrations may cause unconsciousness or death; contact may cause skin irritations and dermatitis, may produce toxic vapors if burned, eye irritant; see A1.2.
6.5 Copper Strip (QQ-C-576A), 16-22 B and S gage, 13 by 51 mm.
6.6 Steel Wool, grade 1-medium fine.
6.7 Litmus Paper.
