ASTM-D4948 Standard Test Method for Determination of the Upper Layer Separated from a Viscous Liquid

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Standard Test Method for Determination of the Upper Layer Separated from a Viscous Liquid




1.1 This test method covers the determination of the amount of liquid separated as an upper layer in a 24-h period from viscous solutions or dispersions that contain dispersed solids such as paints, enamels, pigmented lacquers, adhesives, polishes, and other similar materials.

Note 1: The amount of clear liquid that separates during this test is one of the criteria in the United Nations Recommendations on the Transportation of Dangerous Goods2 for the placement of flammable viscous liquids into packing groups related to flash points (See 4.1).

1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

1.3 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.


upper layer; viscous liquid;; ICS Number Code 07.030 (Physics. Chemistry)

To find similar documents by ASTM Volume:

06.01 (Paint -- Tests for Chemical, Physical, and Optical Properties; Appearance)

To find similar documents by classification:

07.030 (Physics. Chemistry This group includes standards in the field of physics and chemistry as natural sciences Applied physics, see 17 Chemical technology, see 71)

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Document Number


Revision Level

1989 R16 EDITION



Modification Type


Publication Date

Dec. 1, 2016

Document Type

Test Method

Page Count

2 pages

Committee Number