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ASTM D1505-10

Standard Test Method for Density of Plastics by the Density-Gradient Technique

Automaticky přeložený název:

Standardní zkušební metoda pro Hustota plastů hustotou, Gradient Technika

NORMA vydána dne 1.7.2010

Jazyk
Provedení	PDF - okamžité stažení - 2 005.90 Kč Tištěné - 2 005.90 Kč
Dostupnost	SKLADEM
Cena	2005.90 Kč bez DPH
2 005.90 Kč

Informace o normě:

Označení normy: ASTM D1505-10
Poznámka: NEPLATNÁ
Datum vydání normy: 1.7.2010
Kód zboží: NS-17470
Počet stran: 7
Přibližná hmotnost: 21 g (0.05 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM

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Kategorie - podobné normy:

Plastické hmoty obecně

Anotace textu normy ASTM D1505-10 :

Keywords:

density, film, gradient, plaque, polyolefins, polyethylene, polypropylene, preparation, Density--plastics, Density-gradient technique, ICS Number Code 83.080.01 (Plastics in general)

Doplňující informace

Significance and Use

The density of a solid 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 a means of identification.

This test method is designed to yield results accurate to better than 0.05 %.

Note 3—Where accuracy of 0.05 % or better is desired, the gradient tube shall be constructed so that vertical distances of 1 mm shall represent density differences no greater than 0.0001 g/cm.³ The sensitivity of the column is then 0.0001 g/cm³·mm. Where less accuracy is needed, the gradient tube shall be constructed to any required sensitivity.

1. Scope

1.1 This test method covers the determination of the density of solid plastics.

1.2 This test method is based on observing the level to which a test specimen sinks in a liquid column exhibiting a density gradient, in comparison with standards of known density.

Note 1—This test method is equivalent to ISO 1183-2.

1.3 The values stated in SI units are to be regarded as the standard.

1.4 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.

2. Referenced Documents

E691-23	Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
D4703-16	Standard Practice for Compression Molding Thermoplastic Materials into Test Specimens, Plaques, or Sheets
D883-24	Standard Terminology Relating to Plastics
D2839-16(2023)	Standard Practice for Use of a Melt Index Strand for Determining Density of Polyethylene
ISO 1183-2	Methods for Determining the Density and Relative Density of Noncellular Plastics Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.