15.2.1 Galvanized screen, tared, measured 230 mm x 230 mm (9 in. x 9 in.) and constructed of No. 17 wire.

15.2.2 Pan, 76 mm (3 in) deep by 254 mm (10 in) wide by 254 mm (10 in) long.

15.2.3 Pan, tared shallow, lightweight, and large enough to hold the galvanized screen).

15.3.1 Prepare three specimens measuring 203 mm x 203 mm (8 in x 8 in) cut at approximately equally spaced intervals across the sample.

15.4.1 Weigh each test specimen to the nearest 0.1 g and place it on a tared 230 mm by 230 mm (9 in x 9 in) galvanized wire screen. Place the specimen on the screen in such a way as to preserve specimen integrity and avoid the loss of specimen components. Place another tared screen having the same dimensions on top of the specimen and place both screens and specimen in the 76 mm (3 in) deep pan containing water at 21 ± 2 degrees C and about 64 mm (2.5 in) deep. Allow the specimen to soak in the water for 24 ±0.25 hours.

15.4.2 After the soaking period, remove the specimen by removing the screens with the specimen between them and placing above the water on supports placed at the edge of the screens. Allow the specimen and screens to drip-drain in a horizontal position for 10 ±0.1 min.

15.4.3 After drip-draining, place the screens and the wet specimen in the tared pan and weight the pan and its contents to the nearest 0.1 g.

15.5.1 Calculate the amount of water held by the specimen by subtracting the sum of the weights of the weighing pan, screens, and dry specimen from the total weight.

15.5.2 Report the absorptive capacity as the ratio of water held by the specimen to the weight of the original dry specimen. Report the average of the three values found as the absorptive capacity.