ASTM D1290-95
(Test Method)Standard Test Method for Sediment in Water-Emulsion Polishes by Centrifuge
Standard Test Method for Sediment in Water-Emulsion Polishes by Centrifuge
SCOPE
1.1 This test method covers the determination of sediment in water-emulsion polishes by means of a centrifuge.
1.2 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.
General Information
Relations
Standards Content (Sample)
Designation: D 1290 – 95
Standard Test Method for
1
Sediment in Water-Emulsion Polishes by Centrifuge
This standard is issued under the fixed designation D 1290; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope material in question, and the portion used for the test shall be
thoroughly representative of the sample itself.
1.1 This test method covers the determination of sediment
in water-emulsion polishes by means of a centrifuge.
6. Procedure
1.2 This standard does not purport to address all of the
6.1 Measure 100 mL of the water-emulsion wax into each of
safety concerns, if any, associated with its use. It is the
two centrifuge tubes and stopper the tubes. Balance the two
responsibility of the user of this standard to establish appro-
tubes in their holders.
priate safety and health practices and determine the applica-
6.2 Place the two tubes on opposite sides of the head and
bility of regulatory limitations prior to use.
whirl for 10 min at a rate, calculated from the equation in
2. Referenced Documents Paragraph 6.1.3 under Centrifuge of Test Method D 1796,
sufficient to produce a relative centrifugal force (rcf) of
2.1 ASTM Standards:
between 500 and 700 at the tips of the whirling tubes (see Table
D 1796 Test Method for Water and Sediment in Fuel Oils by
2 2, Rotation Speeds Applicable for Centrifuges of Various
the Centrifuge Method (Laboratory Procedure)
Diameters of Swing, of Test Method D 1796 for relationship
3. Significance and Use between diameter of swing, rcf, and rpm).
6.3 Read the volume of sediment in each tube, estimating to
3.1 This test method determines the amount of sediment in
the nearest 0.1 mL if necessary. Record the average of the two
water-emulsion polishes. Sediment is generally believed to
readings as the percentage of sediment by the centrifuge
have negative effects on water-emulsion polish properties.
method.
4. Apparatus
7. Precision and Bias
4.1 Centrifuge and Tubes, conforming to Paragraphs 6.1 and
7.1 Precision—Interlaboratory and intra
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