ASTM D3702 PDF

Ditilar NOTE 4—Check compatibility of the test specimen cleaning procedure and reagents with the speci? The specimen is fixed into the sample holder using a pin and a bolt, and this assembly is inserted into the tester. Reagents and Materials 6. Refer to Table 1 to convert the speci? In cases where materials, products, or equipment are available only in inch-pound units, SI values in parentheses are for information only.

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Yotaur Current edition approved Oct. Through our network of over 43, people in 1, laboratories and offices in countries, Intertek provides quality and safety solutions d a wide range of industries around the world. Due to copyright restrictions, we are not able to provide copies of standards. Global Reach Intertek is the industry leader with over 42, people in 1, locations in over countries.

Need help or have a question? This test method evaluates the performance of materials in rubbing contact under end atm type conditions. Each user should select a solvent that can meet applicable safety requirements and thoroughly clean machine parts.

Coefficient of Friction ASTM D The specimen is fixed into the sample holder using a pin and a bolt, and this assembly is inserted into the tester. This manufacturer recommends a maximum test load of lb kg.

Refer to Table 1 to convert the speci? Acetal homopolymer at PV1: A break-in period, typically 40 hours, is run to ensure intimate contact between the mating parts. A number in parentheses indicates the year of last reapproval.

Preparation of Apparatus 7. Standards can be obtained from appropriate standards authorities. Auditing Consulting Sourcing Training.

Load is obtained by application of dead weights to the Test durations were h, except for round robin 1 where they ranged from to h. Contact pressure, rotational velocity RPMand the number of cycles hours must be specified for each test. AA, the hardness Rc 20 6 5. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility.

A built-in tachometer provides speed indication. The user of this test method should determine to his own satisfaction whether the results of this test procedure correlate with?

Permission rights to photocopy the standard may also be secured from the ASTM website www. Polyamide Type at PV2: The contact area is 1. NOTE 3—Remove all solvents from the washer before testing. Falex Friction and Wear test machine. It is recommended that clean cotton gloves or clean tweezers or tongs be used. Send us a request Wilton UK: Validating the specifications, value and safety of your raw materials, products and assets. If the test conditions are changed, the wear rates may change and the relative value of one material with respect to another may also change.

Testing Evaluating how your products and services meet and exceed quality, safety, sustainability and performance standards. Test materials are machined into a disk approximately 1. Formally confirming that your products and services meet all trusted external and internal standards.

It is generally believed that useful wear rate precision 1. If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below. Typical wear rates for some commonly used materials at different PV levels are: Acetal homopolymer at PV2: Torque the bolt to 6. TOP Related Articles.

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Akinogal Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters. Need help or have a question? The test specimen is machined from a larger sample of the test material. Subscripts 2a, 2b, 2c, and 2d are the corresponding?

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Coefficient of Friction ASTM D3702

The contact can be a test material against steel or against itself. The test specification refers to self-lubricating materials - external lubrication is not part of the specification. This test data would be used for the design of gears and bushings. Test Procedure: The test specimen is machined from a larger sample of the test material.

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Gardakazahn Users of this standard are expressly advised that determination atsm the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility. Contact pressure, rotational velocity RPMand the number of cycles hours must be specified for each test. Preparation of Apparatus 7. A built-in tachometer provides speed indication. PV limit pressure x velocity is the point at which the material fails catastrophically. Load is obtained by application of dead weights to the In cases where materials, products, or equipment are available only in inch-pound units, SI values in parentheses are for information only. Certification Formally confirming that your products and services meet all trusted external and internal standards.

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Falex Friction and Wear test machine. Summary of Test Method 3. The test specification refers to self-lubricating materials — external lubrication is not part of the specification. Need help or have a question?

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