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.
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The thermal conductivity of the sample is calculated from the temperature rise with time registered by the probe. The slower the d5334-0 temperature rises, the higher is the thermal conductivity of satm sample material. Mini VLQ asrm available. Standardization of this test method does not reduce the need for such technical knowledge. For this category of samples, TP08 has been designed.
Note 1Notwithstanding the statements on precision d53344-08 bias contained in this test method; the precision of this test method is dependent on the competence of the personnel adtm it, and the suitability of the equipment and facilities used.
The sample size is not critical, as long as a 20 mm radius around the needle is covered. The new Mini VLQ is a 50 mm long needle probe with a diameter of 2 mm for small samples. Because of the relative importance of the thermal equilibrium between base and sample, an optional container can be ordered with TP Search book title Enter keywords for book title search.
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. This test method is applicable for both undisturbed and remolded soil specimens and soft rock specimens. The Non-Steady-State Probe NSSP measurement method also known as transient line source, thermal needle, hot needle, heat pulse- and hot wire technique has the fundamental advantages that it is fast and absolute while the sample size is not critical.
Min volume 80 ml. Users of this test method are cautioned that compliance with Practice D does not in itself assure reliable testing. Print 1 2 3 4 5 page sstarting from page current page. This ensures consistent results for the conventional and the modified needle probe method in the complete measuring range. Use the Mini Asfm for samples with a minimum diameter of 40 mm and a minimum length of 60 mm.
The standard TP08 probe has proven its suitability for soils, thermal backfill materials, sediments, foodstuff, powders, sludges, paints, glues and various other materials. Copyright Compu-tecture, Inc. Downloads Download Product Manual. 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.
Some samples require pre-drilling. This improves reliability significantly, because thermal conductivity measurements are very sensitive to sample preparation problems and instable measuring conditions. This test method is suitable only for isotropic materials. These are done without need of reference materials. A high quality measurement with TP08 requires that not only the sample but also the base are at a stable preferably the same temperature.
When using the modified method, part of the heat generated during measuring penetrates into the probe body instead of the sample material.
Needle Probe Method According to ASTM D5334-08
Active view current version of standard. See the TP02 manual or inquire at Hukseflux. Min 20 mm radius. This includes compressible materials like soil samples which cannot be tested with the already available Mini HLQ for plane surfaces.
The measurement with TP08 is absolute. Agencies that meet the criteria of Practice D are generally considered capable of competent qstm objective testing.
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. Work Item s – proposed revisions of this standard.
Soil Thermal Resistivity Meter – TLS – ASTM D – Thermtest Inc.
Please login to your authorized staff account to use this feature. This test method is suitable only for isotropic materials. Significance and Use 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.
F Standard Specification for Driven Fasteners: Link to Active This link will always route to the current Active version of the standard.
Nails, Spikes, and Staples. Remember me for one month. This test method is applicable for both undisturbed and remolded soil specimens and soft rock specimens. Click here to download full list of books. However, care must be taken to prevent significant error from: 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.
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.
The dedicated model TP01 is specifically designed for long term monitoring. A separate brochure is available. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not ast, as part of the standard. The probe is inserted in the medium that is investigated. Enter your personal account email address to request a password reset: Optimal accuracy Temperature sensor satm the base.
Turn key systems are offered for sale: In general a NSSP consists of a heating wire, representing a perfect line source, and a temperature sensor capable of measuring the temperature at this source. The Mini VLQ has a measuring range of 0.