ASTM D1622 PDF

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 Superseded By: ASTM D/DM.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.

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Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. Do not use aastm steel rule for dimensions less than 25 mm 1 in.

A lesser number may be made when the following conditions apply: Users of this test method should apply the principles outlined in Practice E to generate data speci?

Revised Material 4 repeatability interval, Ir. Revised Average value for Material 3 in Table 1. ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard.

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 the material does not have forming skins, the term overall density is not applicable.

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D16622 is the between-laboratories coefficient of variation of the average. Highly open-celled materials are essentially air-? This standard has been approved for use by agencies of the Department of Defense.

ASTM D – 98 Standard Test Method for Apparent Density of Rigid Cellular Plastics

In these cases the pressure shall be reduced accordingly. Originally approved in In this case the calculation for density is identical to the calculation in There are no recognized standards on which to base an estimate of bias for s1622 test method. Number of Specimens 8. Measurements per Dimension 1 2 In general, three measurements shall be made of each dimension.

Density can be evaluated as the apparent overall density includes forming skins or by apparent core density forming skins removed.

Standard Test Method for Apparent Density of Rigid Cellular Plastics

Historical Version s – view previous versions of standard. It is the responsibility of the user of this standard to establish appropriate safety and health practices asgm determine the applicability of regulatory limitations prior to use.

For calculation of core density, remove the bottom layer and the top skin. Link to Active This link d16222 always route to the current Active version of the standard.

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Standard – Standard Test Method for Apparent Density of Rigid Cellular Plastics ASTM D –

Each test result was the average of? NOTE 3—The ast buoyancy effect will vary with time and depends on the open-cell content of the foam. For each material, all the samples were prepared at one source, but the individual specimens were prepared at the laboratories that tested them. For calculation of the apparent overall density, cut a specimen that includes the forming skin.

Precision and Bias4 Thus, the value of Wa is zero in the above calculation when the sample is at equilibrium with the air. However, freshly produced closed-cell materials are essentially air-void and will exhibit maximum buoyant effects of air.

Ast, 1 — This test method is equivalent to ISO Work Item s – proposed revisions of this standard. Measure all dimensions to a precision of 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.