ASTM test standards

Property to be Measured ASTM Test Standard Specimen Dimensions Test Molding Sample Weight per Molding (grams)... 

Brennan, W.P. Some applications of thermal analysis as a supplement to or replacement for ASTM testing standards. Thermochim. Acta 1977,18, 10-13, and 101-111. 

Rubbing a flat-ended pin against a drum covered with bonded abrasive (sandpaper) is a standard test for metals (ASTM G 141), but it could be used for plastics. The ASTM test standard allows the option of rotation of the pins about their axis. The pins traverse the drum in a spiral path (Figure 3) and a reference pin material is run on the same abrasive in a path parallel to the test pin. Wear is expressed as a wear ratio. The use of a reference sample with every test sample mitigates differences in lots of abrasive media. This test simulates tribosystems with severe abrasion, for example, a plastic snow shovel. In use, it will be rubbed on concrete or simularly abrasive paving. 

The procedures specified by the US EPA for testing paint products for compliance with VOC limits are described in Federal Reference Method 24, which employs several ASTM test standards. VOC values for waterborne or solventborne coatings are calculated by the following formula ... 

The mode I fracture resistance of adhesive joints is most commonly determined using the double cantilever beam (DCB) test. This test was initially described in the ASTM standard (ASTM 1990) and has been developed more recently in the British standard (BSI2001) and the international standard (ISO 2009). The original ASTM test standard specified metallic substrates and the critical strain energy release rate in mode I, Gic, was determined for repeated crack initiations using a version of simple, shear corrected beam theory. The later standards additionally accommodate nonmetaUic substrates and employ corrected beam theory to determine values of Qc 4t both crack initiation and during steady-state crack propagation. 

The parts were conditioned using two different methods prior to testing. A majority of the samples were conditioned at ambient conditions (25 and ambient humidity) for 48 hours per the requirements of the ASTM testing standard. Select samples were exposed to elevated temperature and humidity conditions for 48 hours prior to testing i.e., 85"C and 85% relative humidity. 

ASTM E617, Standard Specijication fiorEaboratoy Weights and Precision Mass Standards, American Society for Testing and Materials, Philadelphia, Pa., 1991, p. 2. 

The most extensive body of tests are provided under the auspices of ASTM Standard methods. Specific ASTM test designations and descriptions are available (48). The other compendium of fire-retardant tests are contained ia Federal Test Method Standards 191A (49). 

As with all tests, frequent caUbration of the test equipment using standard hardness blocks is a prerequisite for rehable hardness testing (see ASTM E18). Standard hardness blocks are available through commercial sources in the United States but do not have traceabiUty to internationally accepted standards as in Europe. 

H. Berger, Non-destructive Testing Standards—-M Review, ASTM STP 624, ASTM, Philadelphia, Pa., 1977. 

Table 7. ASTM Tests and Standards for Asphalt Shingles...

Wind Resistance. Asphalt shingles are certified to wind performance test standards on a continuous basis through independent third-party testing laboratories. Shingles that have passed the standard wind performance requirements, such as ASTM D3161, Standard Test Method for Wind Resistance for Asphalt Shingles, are identified by labels from the testing laboratory with whom they are in compliance. 

In the fire codes, the atmospheric boiling point is an important physical property used to classify the degree of hazardousness of a Hquid. If a mixture of Hquids is heated, it starts to bod at some temperature but continues to rise ia temperature over a boiling temperature range. Because the mixture does not have a definite boiling poiat, the NFPA fire codes define a comparable value of boiling poiat for the purposes of classifying Hquids. For petroleum mixture, it is based on the 10% poiat of a distillation performed ia accordance with ASTM D86, Standard Method of Test for Distillation of Petroleum Products. 

Tar. Before the development of gas chromatography (gc) and high pressure Hquid chromatography (hplc), the quantitative analyses of tar distillate oils involved tedious high efficiency fractionation and refractionation, followed by identification or estimation of individual components by ir or uv spectroscopy. In the 1990s, the main components of the distillate fractions of coal tars are deterrnined by gc and hplc (54). The analytical procedures included in the specifications for tar bulk products are given in the relevant Standardi2ation of Tar Products Tests Committee (STPTC) (33), ISO (55), and ASTM (35) standards. 

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