GeoTesting Express is a provider of Geosynthetic Testing Services – ASTM D,Standard Test Method for Apparent Density of Rigid Cellular Plastics. View Abstract. Product Details. Detail Summary. View all details. Superseded By: ASTM D/DM. EN. Format. Details. Price (USD). PDF. ASTM D – Designation: D – 08 Standard Test Method for Apparent Density of Rigid.
|Published (Last):||18 September 2014|
|PDF File Size:||16.46 Mb|
|ePub File Size:||9.69 Mb|
|Price:||Free* [*Free Regsitration Required]|
Do not use a steel rule for dimensions less than 25 mm 1 in. VR is the between-laboratories coefficient of variation of the average. The values given in parentheses are for information only. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
sstm Measurements per Dimension 1 2 In this case, the test specimen is the entire sample. If the material does not have forming skins, the term overall density is not applicable. Any test specimen preparation, conditioning, dimensions, or testing parameters, or combination thereof, covered in the relevant ASTM materials speci? For calculation of the apparent overall density, cut a specimen that includes the forming skin. If there are no relevant ASTM material specifications, then the default conditions in this method apply.
The specimens shall be taken from locations distributed throughout the sample.
Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Originally approved in However, freshly produced closed-cell materials are essentially air-void and will exhibit maximum buoyant effects of air.
If the material does not have forming skins, the term overall density is not applicable. When a sliding caliper gage is used, the proper setting shall be that point at which the measuring faces of the gage contact the surfaces of the specimen without compressing them. The principles of Revised Average value for Material ast, in Table 2. Last previous edition approved in as D – Highly open-celled materials are essentially air-?
NOTE 3—The air buoyancy effect will vary with time and depends on the open-cell content of the foam.
Active Risk Management
SR is the between-laboratories standard deviation of the average. For calculation of core density, remove the bottom layer and the top skin. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other.
A lesser number may be made when the following conditions apply: Combining values from the two systems may result in non-conformance with the standard.
If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below. Each laboratory obtained one test result for each material. A number in parentheses indicates the year of last reapproval. In this case the calculation for density is identical to the calculation in Thus, the value of Wa is zero in the above calculation when the sample is at equilibrium with the air.
Revised Average value for Material 3 in Table 1. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm. If there are no relevant ASTM material satm In general, three measurements shall be made of each dimension. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.
Dd1622 Material 4 repeatability interval, Ir.
Aztm equipment shall be adjusted to the best spray pattern and optimum performance. ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. Each test result was the average of?
For each material, all the samples were prepared at one source, but ashm individual specimens were prepared at the laboratories that tested them. Precision and Bias4 Density can be evaluated as the apparent overall density includes forming skins or by apparent core density forming skins removed.
This standard has been approved for use by agencies of the Department of Defense. Current edition approved April 1, After a minimum of 5 min, spray apply a second layer of 3.
Standard – Standard Test Method for Apparent Density of Rigid Cellular Plastics ASTM D –
Number of Specimens 8. Historical Version s – view previous versions of standard. Spray apply a minimum 1. Link to Active This link will always route to wstm current Active version of the standard.
Density can be evaluated as the apparent overall density includes forming skins or by apparent core density forming skins removed.