ASTM D1489-09(R2021) pdf free download
ASTM D1489-09(R2021) pdf free download.Standard Test Method for Nonvolatile Content of Aqueous Adhesives
1. Scope
1.1 This test method covers the determination of the non- volatile 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. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appro- priate safety, health, and environmental practices and deter- mine the applicability ofregulatory limitations prior to use. 1.4 This international standard was developed in accor- dance with internationally recognized principles on standard- ization established in the Decision on Principles for the Development of International Standards, Guides and Recom- mendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
5. Apparatus and Materials
5.1 Analytical Balance, for weighing of specimen, accurate to 60.001 g. 5.2 Laboratory Balance, for weighing of sample, accurate to 60.01 g. 5.3 Constant-Temperature Oven, capable of maintaining a temperature of 105 6 1°C (221 6 2°F). 5.4 Glass Jar, ofsufficient size, 1 L 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. 5.5 Beaker, of 100 mL capacity. 5.6 Weighing Bottles—Wide-mouth cylindrical glass weigh- ing 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 stop- pers. 5.8 Volumetric Pipet, of 10-mL capacity. 5.9 Desiccator, with drying agent and tray. 5.10 Silica Sand. 5.11 Water, Hot—Distilled water heated to at least 80°C. 5.12 Hot Plate, used to heat the water.
6. Sampling
6.1 The sample ofthe adhesive shall be representative ofthe 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. N OTE 1—In the case of adhesives that do not reach constant weight, for example those containing glycerin or slightly volatile plasticizers, make one weighing after a specified period of time mutually agreed upon between the manufacturer and the purchaser. 7.5 Dry the sample in the bottle at 105 6 1°C (221 6 2°F) in the constant temperature oven until it has reached a constant weight. Determine this by removing the bottle, at predeter- mined times, and quickly weighing it on the scale. Once the same weight is achieved in two consecutive weighings, return the sample to the oven for 5 min more. Then, cover the bottle and cool in a desiccator charged with desiccant to room temperature before weighing to the nearest 0.001 g.
