We need your consent to use the individual data so that you can see information about your interests, among other things. Click "OK" to give your consent.
Standard Test Method for Density of Polyethylene by the Ultrasound Technique (Withdrawn 2017)
Automatically translated name:
Standard Test Method for Density of Polyethylene by the Ultrasound Technique
STANDARD published on 1.11.2008
Designation standards: ASTM D4883-08
Note: WITHDRAWN
Publication date standards: 1.11.2008
SKU: NS-29013
The number of pages: 4
Approximate weight : 12 g (0.03 lbs)
Country: American technical standard
Category: Technical standards ASTM
Keywords:
amorphous, crystalline, density, molded, plaques, polyethylene, sonic, ultrasonic, ultrasound, Density--plastics, Polyethylene (PE), Ultrasound testing, ICS Number Code 83.080.20 (Thermoplastic materials)
Significance and Use | ||||||||||||||||||||
The density of polyethylene is a conveniently measurable property which is frequently useful as a means of following physical changes in a sample, as an indication of uniformity among samples, and as a means of identification. This test method is designed to yield results with a precision of ±0.08 % or better. |
||||||||||||||||||||
1. Scope | ||||||||||||||||||||
1.1 This test method covers the determination of the density of polyethylene through the utilization of ultrasound equipment. 1.2 This test method is based on the distinct behaviors of the amorphous and crystalline phases of polyethylene in response to ultrasound. Polyethylene shall be viewed as a composite structure where high-density crystalline regions are connected by lower-density amorphous material. The ratio of crystalline to amorphous material determines the final density of the material. The amorphous and crystalline phases exhibit very distinct behaviors with regard to the propagation of sound waves. The propagation characteristics in the composite will depend on the relative amount of the two phases (the degree of crystallinity). 1.3 Inorganic materials increase density as measured by Test Methods D 792 and D 1505, but they have little or no effect on ultrasonic density. The ultrasonic measurement is basically a base resin density. 1.4 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 1.5 This 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 and health practices and determine the applicability of regulatory limitations prior to use. Note 1—There is no known ISO equivalent to this standard. |
||||||||||||||||||||
2. Referenced Documents | ||||||||||||||||||||
|
Historical
1.5.2013
Historical
1.9.2013
Historical
1.4.2013
Historical
1.4.2012
Historical
1.4.2013
Historical
1.5.2013
Do you want to make sure you use only the valid technical standards?
We can offer you a solution which will provide you a monthly overview concerning the updating of standards which you use.
Would you like to know more? Look at this page.
Latest update: 2024-11-13 (Number of items: 2 210 764)
© Copyright 2024 NORMSERVIS s.r.o.