ASTM D5334 PDF

Terminology 3. Summary of Test Method 4. In this test method the thermal conductivity is determined by inserting a relatively long needle of small diameter into the material. The needle consists of both heating and temperature measuring elements. To perform the test a known amount of current is passed through the heater element and the resulting variation of temperature is monitored as a function of time.

Author:Voodoojinn Mashura
Country:Tunisia
Language:English (Spanish)
Genre:Video
Published (Last):3 September 2014
Pages:217
PDF File Size:3.37 Mb
ePub File Size:19.26 Mb
ISBN:547-1-56761-548-8
Downloads:6012
Price:Free* [*Free Regsitration Required]
Uploader:Samura



Terminology 3. Summary of Test Method 4. In this test method the thermal conductivity is determined by inserting a relatively long needle of small diameter into the material. The needle consists of both heating and temperature measuring elements. To perform the test a known amount of current is passed through the heater element and the resulting variation of temperature is monitored as a function of time.

This parameter is used in the thermal analysis of underground electrical transmission lines, oil pipelines, radioactive waste disposal, and solar thermal storage facilities.

Apparatus 6. The construction of the device is described in the annex. The calibration standard shall be in the shape of a cylinder. The diameter of the cylinder shall be at least 40 mm and the length shall be at least 10 cm longer than the needle probe. A hole shall be drilled along the axis of the cylinder to a depth equal to the length of the probe.

Sample Preparation 7. The tube section should have a minimum diameter of 51 mm 2. Care should be taken to ensure that the thermal probe shaft is fully enbedded in the sample and not left partially exposed. See Note 1. NOTE 1—To provide better thermal contact between the sample and the probe, the probe may be coated with a thin layer of thermal grease. A device, such as a drill press, shall be used to insert the probe to ensure that the probe is inserted vertically and that no void spaces are formed between the specimen and the probe.

For further guidance on the effect of the various compaction techniques on thermal conductivity the reader is referred to Mitchell et al. Calibration 8. D before its use. Perform calibration by comparing the experi- mental determination of the thermal conductivity of a standard material to its known value.

Procedure 9. See Fig. A typical data sheet and a typical record of data are shown in Fig.

ADAC KOSTENVERGLEICH PDF

Lab Services: Soil testing

This practice covers the recommended method for rating the condition of electroplated test panels subjected to corrosive environments for test purposes. Please sign into an account with a subscription to this content, or email for help at support madcad. A superscript epsilon e indicates an editorial change since the last revision or reapproval. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm.

CSQA CBOK 2011 PDF

ASTM D5334

Want this as a site license? Changes from the previous issue A redline edition is available for this document, with all changes visible. Ask Document Center Inc. Scope 1. This test method is applicable for both intact and reconstituted soil specimens and soft rock specimens. This test method is suitable only for homogeneous materials.

Related Articles