ASTM D1489-09 (R2021) pdf free download.Standard Test Method for Nonvolatile Content of Aqueous Adhesives.
1.1 This test method covers the determination of the nonvolatile content of aqueous adhesives, such as dextrin, starch, casein, and animal gelatin.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
4.2 This test method can he used to compare the nonvolatile content of various adhesives for adhesive selection and product uniformity.
4.3 This test method is suitable for quality control and research purposes.
5. Apparatus and Materials
5. 1 Analytical Iialance, for weighing of specimen, accurate to ±0.(X)l g.
5.2 Laboratory Balance, for weighing of sample. accurate to ±0.01 g.
5.3 Constant- Temperature Oven, capable of maintaining a temperature of 105 ± 1°C (221 ± 2°F).
5.4 Glass Jam; of sufficient size. If or more, to store sample of adhesive prior to testing. The jar shall be such that it can be sealed to prevent the loss of volatile content during the storage period.
5.6 Weighing Bottles—Wide-mouth cylindrical glass weighing bottles, of flat form, about 30 mm in height and 50 mm in diameter, having interchangeable ground-in glass caps.
5.7 Volumetric Flasks, of 200-mL capacity, with glass stoppers.
5.8 Volumetric Pipet, of 10-mL capacity.
5.9 Desiccator with drying agent and tray.
5.10 Silica Sand.
5. 11 Wate,; Hot—Distilled water heated to at least 80°C.
5.12 Hot Plate, used to heat the water.
6. Sampling
6.1 The sample of the adhesive shall be representative of the lot being evaluated. The quantity shall be at least 1 .0 L aliquot consisting of a composite taken, when possible, from three or more separate containers chosen at random. Thoroughly mix the sample to uniform consistency. Immediately place the composite sample in an airtight glass jar until tested.
7. Procedure
7.1 Make sure that the sample in the glass jar is of uniform consistency before removing a specimen for testing. Inspect the sample to ensure that there are no signs of settling or separation of the adhesive. If settling or separation are noted, mix the samples thoroughly’. Other factors, such as foaming or contamination may require the samples be replaced.
7.2 Test three 10-g specimens from each composite sample.
7.3 Weigh about 10 g of adhesive into a small beaker to the nearest 0.01 g. Disperse in 50 mL of hot distilled water and transfer to a 200-mL volumetric flask. Rinse the beaker with small portions of hot distilled water and add rinsings to the flask. Dilute to mark with hot distilled water. Perform duplicate tests on each dispersion prepared in this manner.
7.4 Pipet 10 mL of the dispersion into a tared weighing bottle three quarters full of silica sand which has been dried to constant weight.ASTM D1489 pdf download.