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.
|Published (Last):||11 October 2011|
|PDF File Size:||20.84 Mb|
|ePub File Size:||1.36 Mb|
|Price:||Free* [*Free Regsitration Required]|
Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Stop the test at break, when the load no longer increases with deflection or when the specimen reaches the required maximum deflection.
Plate width should equal or exceed the pipes contact area at maximum deflection plus 6 in. These notes and footnotes excluding those in tables and figures shall not be considered as requirements of the test method. A compression cage can be use for tension only testing machines in order to convert the tensile force into a compressive force. Load measurements are taken at constant intervals. Depending on the type of plastic pipe being tested, cut the specimen to the dd2412 specified.
ASTM D Plastic Pipe Deflection Testing – ADMET
The eP2 Digital Controller, a standalone touch panel unit, offers a balance between performance and simplicity. ADMET testing controllers sati sfy this requirement and can automatically record load and deflection. Measure the length, average diameter, and average wall thickness of the specimen. Contact our Engineers Today! Calculate pipe stiffness, stiffness factor, and percentage pipe deflection using the formulas provided in the speciation.
This is a function of the pipe dimensions and the physical properties of the material of which the pipe is made. These details are included in the product standards, for example, Specification F While this test method can be used in measuring the pipe stiffness of corrugated plastic pipe or tubing, special conditions and procedures are used. Compression platens are used for D Prepare and test at least three specimens for each astn.
Calculations for ASTM D include asym load deflection, pipe stiffness, and the stiffness factor.
ADMET testing controllers are capable of automatically performing and reporting these calculations at any given deflection. Sales Support Calibration Calculators. Automotive Interior Mechanical Testing Guide. Care must be taken to account for the mid-section of the pipe which will expand slightly as the pipe is compressed. Planar Biaxial Testing Guide. It is the responsibility of the user of this asstm to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
The length of the plate should equal or exceed that of the specimen. A pair of smooth compression platens capable of applying the required load without bending. A spherically seated compression platen can be used in order to normalize the vector of compression.
ASTM D2412 Load Deflection of Plastic Pipe Test How to Guide
Condition the specimens to the temperature detailed in the specification. ASTM D is used to determine pipe stiffness and to characterize the material behavior of plastics in pipe form. This summary is intended to help you understand the basic procedure and equipment required to complete this test with accuracy.
The platen has a spherically seated joint that wobbles slightly and lines up the load force on the pipe specimen.
ASTM D2412 Plastic Pipe Deflection Testing
Square or xstm platens can be used, with most customers choosing a square platen. Be sure to cut the pipe cleanly. Begin compressing the specimen at the specified rate.
Pipes tested under ASTM D must be smaller than the envelope of the two compression platens by at least a half an inch. Be aware of line cracking, wall cracking, wall delamination, and break. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. Record the load and deflection when these events are observed.
ASTM D is a testing standard used to determine the stiffness and load deflection of plastic pipe. The pipe is compressed between two platens in order to gather load-deflection data. asmt
ASTM D Load Deflection of Plastic Pipe Test How to Guide – ADMET
How to Build a New Test. Link to Active This link will always route to the current Active version of the standard. Historical Version s – view previous versions of standard. Wide versions of all of these machines are available to d24412 large pipe diameters. We’re ready to help!