Designation: D1875 - 03 (Reapproved 2013) Standard Test Method for Density of Adhesives in Fluid Form1 This standard is issued under the fixed designation D1875; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. Anumber in parentheses indicates the year of last reapproval.A superscript epsilon (e) indicates an editorial change since the last revision or reapproval. This standard has been approved for use by agencies of the Department of Defense. 1. Scope 5. Apparatus 1.1 This test method covers the measurement of density 5.1 Weight-Per-Gallon Cup-A weight-per-gallon cup3 of (weight per gallon) of adhesives, and components thereof, platedbrass or stainless steelwith counterbalanceis recom- when in liquid form. mended. The capacity of this cup with cover is exactly 83.2 mL 1.2 The values stated in SI units are to be regarded as the (2.81 fl oz) at 25°C (77°F). standard. The values given in parentheses are for information NoTe 1The use of cups that are factory calibrated eliminates the need only. for further calibration. These cups are calibrated with distilled water so that their proper net weight is obtained at 25°C. A temperature of 25°C is 1.3 This standard does not purport to address all of the therefore recommended when using these cups.Volume expansion of both safetyconcerns,ifany,associatedwithitsuse.Itisthe cup and the material to be measured causes erroneous resulits, if the matter responsibility of the user of this standard to establish appro- of temperature is not standardized. However, where less accuracy is priate safety and health practices and determine the applica- required, consideration of temperature differentials may be ignored bility of regulatory limitations prior to use. 5.2 Thermometer-ASTM Saybolt Viscosity Thermometer having a range from 19 to 27°C (66 to 80.5°F) and conforming 2. Referenced Documents to the requirements for Thermometer 17C as prescribed in 2.1 ASTM Standards:? Specification El D907 Terminology of Adhesives 5.3 Constant-Temperature Bath, capable of maintaining a E1 Specification for ASTM Liquid-in-Glass Thermometers temperature of 25 ± 0.1°℃ (77 ± 0.5°F). E691 Practice for Conducting an Interlaboratory Study to 5.4 Laboratory Balance, 200 g (0.44 lb) or greater capacity, Determine the Precision of a Test Method accurate to ±0.1 g (0.0002 lb). 3. Terminology NoTe 2—A hanging pan, triple-beam balance, or overhead-beam type 3.1 Definitions-Many terms in this test method are defined of balance with scales graduated to 0.1 g has been found to provide results, the mean of which was consistent with the over all precision and accuracy in Terminology D907. of this test method 3.2 Definitions of Terms Specific to This Standard: Nore 3Fingerprints and smudges on the cup changes the weight and 3.2.1 density, nthe mass (weight in vacuum) of a unit is to be avoided. Handle only with tongs and with hands protected by clean, dry, absorbent material. volume of the liquid at any given temperature expressed as the weight in pounds avoirdupois, of a U.S. gallon measure of the 6. Sampling liquid at 25°C, unless otherwise specified. 6.1 Take representative samples of the lot to be evaluated from three or more separate containers, chosen at random. Do 4. Significance and Use not take samples from containers that appear to be nonrepre- 4.1 This test method is particularly applicable where the sentative.Placethe samplesinairtightcontainers,filledto preventexcessiveairspaceabovetheadhesive,and storedat volatile for a specific gravity balance determination. roomtemperatureto reduce evaporation or drying to amini- mum. Ensure that the adhesive in the container is thoroughly 1This test method is under the jurisdiction of ASTM Commitee D14 on mixed if there is a tendency for the materials to separate. Adhesives and is the direct responsibility of Subcommittee D14.10 on Working Properties. 7. Procedure Current edition appro