AS NZS 1141.7:2014 pdf free download – Methods for sampling and testing aggregates Method 7: Apparent particle density of filler

AS NZS 1141.7:2014 pdf free download – Methods for sampling and testing aggregates Method 7: Apparent particle density of filler.
The volume of the density bottle shall be determined in accordance with the following procedure:
(a) Remove any static charge from the clean, dry density bottle by wiping it with a clean, lint-free cloth which has been slightly dampened with water.
(b) Weigh the density bottle and stopper to the nearest 0.0001 g and record the mass (in1).
(C) Fill the bottle completely with distilled or deionized water.
(d) Immerse the bottle in the water bath set to 25 ±0.5°C. The level of water in the bath shall come to within approximately 5 mm of the top of the density bottle.
(e) After 30 mm, insert the stopper carefully so that no bubbles are trapped in the neck of the bottle and the excess water is expelled through the capillary in the stopper.
(f) After a further 10 mm, brush the top of the stopper with a slip of filter paper, holding the paper at an angle to ensure a flat surface is passed over the capillary opening. Do not hold the bottle by hand during this process.
(g) Remove the bottle from the water bath, dry carefully, preventing any static charge
and weigh immediately. Record the mass of bottle plus contents (in2) to the nearest
0.0001 g.
NO’Ii: On removing from the water bath the bottle should he handled gently by the neck to prevent distortion of the bottle sides using suitable tongs or gloves to prevent transfer of heat. static or contamination of the bottle. Calculate the mass of water in the bottle (mwH) by subtracting in1 from m2.
(h) Calculate the volume of the bottle, in millilitres, at 25°C (V) as follows.