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Standard Test Methods for Nonrigid Vinyl Chloride Polymer Tubing Used for Electrical Insulation
NORMA vydaná dňa 1.1.2021
Označenie normy: ASTM D876-21
Dátum vydania normy: 1.1.2021
Kód tovaru: NS-1017638
Počet strán: 12
Približná hmotnosť: 36 g (0.08 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
brittleness temperature, corrosion, dielectric breakdown voltage, dimensions, electrical insulation, flammability, oil resistance, penetration, poly(vinyl chloride), PVC, temperature tests, tension properties/tests, tubing, vinyl chloride polymer, volume resistivity ,, ICS Number Code 29.035.20 (Plastic and rubber insulating materials)
|Significance and Use|
4.1These test methods include most of the test methods that are considered important to characterize nonrigid vinyl chloride polymer tubing. While they were developed initially for this type of extruded tubing, their use is not limited to this type of tubing.
4.2Variations in these test methods or alternate contemporary methods are acceptable for use determine the values for the properties in this standard provided such methods ensure quality levels and measurement accuracy equal to or better than those prescribed herein. It is the responsibility of the organizations using alternate test methods to be able to demonstrate this condition. In cases of dispute, the test methods specified herein shall be used.
Note 2:Provision for alternate methods is necessary because of (1) the desire to simplify procedures for specific applications without altering the result, and (2) the desire to eliminate redundant testing and use data generated during manufacturing process control, including that generated under Statistical Process Control (SPC) conditions, using equipment and methods other than those specified herein. An example would be the use of laser micrometers or optical comparators to measure dimensions.
1.1These test methods cover the testing of general-purpose (Grade A), low-temperature (Grade B), and high-temperature (Grade C)Note 1:These test methods are similar but not identical to those in IEC 606842.
1.2The values stated in inch-pound units are to be regarded as standard, except for temperature, which shall be expressed in degrees Celsius. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.3The procedures appear in the following sections:
1.4This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.5For fire test caveats, see Test Methods .
1.6This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
|2. Referenced Documents|
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