ASTM D is a significantly updated version of the Standard Test Method for Determination of Thermal Conductivity of. Soils and Rock by Thermal Needle . ASTM D – Standard Test Method for Determination of Thermal Conductivity of Soil and Soft Rock by Thermal Needle Probe Procedure. This standard is. Buy ASTM D TEST METHOD FOR DETERMINATION OF THERMAL CONDUCTIVITY OF SOIL AND SOFT ROCK BY THERMAL.
|Published (Last):||4 September 2014|
|PDF File Size:||13.46 Mb|
|ePub File Size:||9.19 Mb|
|Price:||Free* [*Free Regsitration Required]|
The NSSP principle relies on a unique property of a line source: This ensures consistent results for the conventional and the modified needle probe method in the complete measuring range. Remember me for one month. This test method is applicable for both undisturbed and remolded soil specimens and soft rock specimens.
FORMAT Single User Subscription Site License Subscription BOOKS All Books PACKAGES All Packages EDITION to PUBLISHER. The sample size is not critical, as long as a 20 mm radius around the needle is covered.
Hukseflux is specialised in NSSP design. See also Solutions for measurement and control: If the results are to be reported as having been obtained by this test method, then all pertinent requirements prescribed in this test method shall be met.
For some applications however the requirements regarding the d534-08 size are such that the needle atsm and diameter of the TP02 are too large.
TP08 – Hukseflux USA
Mini VLQ now available. In TP08 the reference junction of the thermocouple is located in the base. Click here to download full list of books. However, care must be taken to prevent significant error from: They yield more accurate results, and they can be used to detect disturbances in the data by comparing the measured temperature curve to the theoretical curve form. Permanent installation in soils: Min 20 mm radius. The probes are calibrated once by the manufacturer before delivery. The measurement with TP08 is absolute.
Nails, Spikes, and Staples. The thermal conductivity of the sample is calculated from the temperature rise with time registered by the probe. Having a needle length of 70 mm, with the junction at around 17 mm from the tip, and a diameter of 1. The method then yields absolute thermal conductivity values without requiring any time-consuming reference or comparison measurements. Register for a trial account. Please login to your authorized staff account to use this feature.
This test method is suitable only for isotropic materials. Today, some 12, ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence.
The dedicated model TP01 is specifically designed for long term monitoring. It can be used where standard size probes are too large for the available sample dimensions. For permanent installation in soils, a dedicated model, TP01, is available. Agencies that meet the criteria of Practice D are generally considered capable of competent and objective testing. These are done without need of reference materials. This model offers optimal measurement accuracy by a combination of its design features.
It is recognized also that it would be unwise, because of the standardization of this test method, to resist in any way the further development of improved or new methods or procedures by research workers.
No items in cart. Description Specifications Specifications Downloads Product Description TP08 is a probe that offers the possibility to perform a practical and fast measurement of the thermal conductivity or thermal resistivity of the medium in which it is inserted at a high accuracy level. Note 1Notwithstanding the statements on precision and bias contained in this test method; the precision of this test method is dependent on the competence of the personnel performing it, and the suitability of the equipment and facilities used.
Measuring Principle | TK04 Thermal Conductivity Meter
TK04 uses the well-established transient line source method widely known as needle probe method according to ASTM D Land Use and Development. A high quality measurement with TP08 requires that not only the sample but also the base are at a stable preferably the same temperature. Search book title Enter keywords for book title search.
See the TP02 manual or inquire at Hukseflux. This method may also ast used for specimens containing moisture. Reliable testing depends on many factors; Practice D provides a means of evaluating some of those factors. Copyright Compu-tecture, Inc. This includes compressible materials like soil samples which cannot be tested with the already available Mini HLQ for plane surfaces.
Viewing results 0-0 of 0
Some samples require pre-drilling. Link to Active Sstm link will always route to the current Active version atm the standard. The thermal conductivity of both undisturbed and remolded soil specimens as well as soft rock specimens is used to analyze and design systems used, for example, in underground transmission lines, oil and gas pipelines, radioactive waste disposal, and solar thermal storage facilities. Special models have been developed for in-situ field experiments.
Downloads Download Product Manual. Min volume 80 ml. A long and thin heating source the needle probe is inserted into a sample and is heated with constant power while recording the temperature rise with time inside the source.