ASTM D 422 : 1963 : R2007

Name: ASTM D 422 : 1963 : R2007
Brand: ASTM
Price: 75.00 USD

Superseded

View Superseded by

Standard Test Method for Particle-Size Analysis of Soils

Available format(s)

Hardcopy , PDF

Superseded date

05-10-2023

Language(s)

English

Published date

10-15-2007

Publisher

American Society for Testing and Materials

CONTAINED IN VOL. 04.08, 2015 Specifies the quantitative determination of the distribution of particle sizes in soils.

1.1 This test method covers the quantitative determination of the distribution of particle sizes in soils. The distribution of particle sizes larger than 75 μm (retained on the No. 200 sieve) is determined by sieving, while the distribution of particle sizes smaller than 75 μm is determined by a sedimentation process, using a hydrometer to secure the necessary data (Note 1 and Note 2).

Note 1

Separation may be made on the No. 4 (4.75 μm), No. 40 (425 μm), or No. 200 (75 μm) sieve instead of the No. 10. For whatever sieve used, the size shall be indicated in the report.

Note 2

Two types of dispersion devices are provided: (1) a high-speed mechanical stirrer, and (2) air dispersion. Extensive investigations indicate that air-dispersion devices produce a more positive dispersion of plastic soils below the 20-m size and appreciably less degradation on all sizes when used with sandy soils. Because of the definite advantages favoring air dispersion, its use is recommended. The results from the two types of devices differ in magnitude, depending upon soil type, leading to marked differences in particle size distribution, especially for sizes finer than 20 m.

Committee	D 18
DocumentType	Test Method
Pages	8
ProductNote	Reconfirmed 2007
PublisherName	American Society for Testing and Materials
Status	Superseded
SupersededBy	ASTM D 422 : 1963 : R2007 : EDT 1
Supersedes	ASTM D 422 : 1963 : R2002 : EDT 1 ASTM D 422 : 1963 : R2002

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