1 Jun ASTM D(). Standard Test Method for Determination of External Loading Characteristics of Plastic Pipe by Parallel-Plate Loading. ASTM D Standard Test Method for Determination of External Loading Characteristics of Plastic Pipe by Parallel-Plate Loading. Standard Test Method for Determination of External Loading Characteristics of Plastic Pipe by Parallel-Plate Loading. Theory: ASTM D is used to determine.
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Measure the length, average diameter, and average wall thickness of the specimen. Contact our Engineers Today! Historical Version s – view previous versions of standard.
Be sure to cut the pipe cleanly. These notes and footnotes excluding those in tables and figures shall not be considered as requirements of the test method.
Be aware of line cracking, wall cracking, wall delamination, and break. Sales Support Calibration Calculators.
Calculate pipe stiffness, stiffness factor, and percentage pipe deflection using aastm formulas provided in the speciation. ASTM D is a testing standard used to determine the stiffness and load deflection of plastic pipe. Load measurements are taken at constant intervals. ADMET testing controllers sati sfy this requirement and can automatically record load and deflection.
Begin compressing the specimen at the specified rate. Prepare and test at least three specimens for each pipe. ASTM D is used to determine pipe stiffness and to characterize the material behavior of v2412 in pipe form.
The length of the plate should equal or exceed that of the specimen.
ADMET testing controllers are capable of automatically performing and reporting these calculations at any given deflection. The values given in parentheses are mathematical conversions to SI units that are provided wstm information only and are not considered standard. Automotive Interior Mechanical Testing Guide.
Calculations for ASTM D include percentage load deflection, pipe stiffness, and the stiffness factor. Plate width should equal or exceed the pipes contact area at maximum deflection plus 6 in.
We’re ready to help! A pair of smooth compression platens capable of applying the required load without bending. Depending on the type of 2d412 pipe being tested, cut the specimen to the lengths specified.
The platen has a spherically seated joint that wobbles slightly and lines up the load force on the pipe specimen. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Link to Active This link will always route to the current Active version of the standard. This is a function of the pipe dimensions and the physical properties of the material of which the pipe is made.
Wide versions of all of these machines are available to accomodate large pipe diameters. Compression platens are used for D The eP2 Digital Controller, a standalone touch panel unit, offers a balance between performance and ast.
Planar Biaxial Testing Guide. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the aetm of regulatory limitations prior to use.
A compression cage can be use for tension only testing machines in order to convert the tensile force into a compressive force. Condition the specimens to the temperature detailed in the specification.
A spherically seated compression platen can be used in order to normalize the vector of compression.
ASTM D2412 Plastic Pipe Deflection Testing
While this test method can be used in measuring the pipe stiffness of corrugated plastic pipe or tubing, special conditions and procedures are used. Stop the test at break, when the load no longer increases with deflection or when the specimen reaches the required maximum deflection.
These details are included in the product standards, for example, Specification F Record the load and deflection when these events are observed. Square or circular platens can be used, with most customers choosing a square platen.
The pipe is compressed between two platens in order to gather load-deflection data.
ASTM D Load Deflection of Plastic Pipe Test How to Guide – ADMET
Pipes r2412 under ASTM D must be smaller than the envelope of the two compression platens by at least a half an inch. How to Build a New Test. This summary is intended to help you understand the basic procedure and equipment required to complete this test with accuracy.