ASTM D3556-85(2001)
(Test Method)Standard Test Method for Deposition on Glassware During Mechanical Dishwashing
Standard Test Method for Deposition on Glassware During Mechanical Dishwashing
SIGNIFICANCE AND USE
This test method is intended as a laboratory screening test to determine performance of the detergent under actual use conditions, but will not necessarily predict performance under all end-use conditions.
SCOPE
1.1 This test method covers a procedure for measuring performance of a mechanical dishwashing detergent in terms of the buildup of spots and film on glassware. It is designed to evaluate household automatic dishwasher detergents but can be used as a screening test for institutional dishwashing products.
1.2 This standard may involve hazardous materials, operations, and equipment. This standard does not purport to address all of the safety problems associated with its use. It is the responsibility of whoever uses this standard to consult and establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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Designation:D3556–85 (Reapproved 2001)
Standard Test Method for
Deposition on Glassware During Mechanical Dishwashing
This standard is issued under the fixed designation D3556; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope and then with a household automatic dishwashing detergent at
the manufacturer’s recommended use level, each in a normal
1.1 This test method covers a procedure for measuring
wash cycle. Use deionized or distilled water for the rinses
performanceofamechanicaldishwashingdetergentintermsof
during this cleaning procedure. Do not use the drying cycle of
the buildup of spots and film on glassware. It is designed to
the machine until the tumblers appear to be free of soil or film.
evaluatehouseholdautomaticdishwasherdetergentsbutcanbe
No “water break” should be evident when the tumblers have
used as a screening test for institutional dishwashing products.
been rinsed. Any other procedure (such as hand washing and
1.2 This standard does not purport to address all of the
polishing) which yields tumblers that are spot- and film-free
safety concerns, if any, associated with its use. It is the
may be used.
responsibility of the user of this standard to establish appro-
4.3 Standard Tableware (Note 1) (optional, see Section 6):
priate safety and health practices and determine the applica-
4.3.1 Suggested tableware is as follows, Dinner plates,
bility of regulatory limitations prior to use.
10-in. diameter, Salad plates, 7-in. diameter, Cereal bowls,
2. Summary of Test Method
6-in. diameter, Saucers, 6-in. diameter, and Cutlery, stainless
steel.
2.1 Glass tumblers are given multiple washes in a mechani-
cal dishwasher in the presence of food soil and the levels of
NOTE 1—A mixture of china and plastic dishes is recommended but is
spotting and filming allowed by the detergents under test are
not essential; any standard quality type of dishware is satisfactory.
compared visually.
4.3.2 For each machine used, six dinner plates, six knives,
six forks, and six spoons are required, plus optionally enough
3. Significance and Use
of the other dishes to fill the lower rack of each machine (see
3.1 This test method is intended as a laboratory screening
Section 6).
test to determine performance of the detergent under actual use
4.4 Light Box for Visual Evaluation of Tumblers—Atypical
conditions, but will not necessarily predict performance under
light box is rectangular, open to the front, and has dead black
all end-use conditions.
insidesurfaces.Itislargeenoughtoholdupto15tumblersside
by side. Fluorescent lights are mounted in the base of the box
4. Apparatus
in such a manner that light passes up through the tumblers. It
4.1 AutomaticDishwasher(s)—Typicalhouseholdmachines
is preferable to have the light come only through the tumblers
should be selected. If more than one machine is required, pairs
and have the area surrounding them blocked out by suitable
with consecutive production numbers are recommended. For
means.
further refinement, two or more pairs of differing makes,
models, or ages (pair to pair) may be used.
5. Materials and Manufacture
4.2 Clear Undecorated Glass Tumblers, from8to15per
5.1 Standard Food Soil Components: nonfat powdered
machine, a larger number being used if it is planned to remove
milk, margarine, and wheat-based cooked cereal (optional).
onetumbleratintervalsthroughoutthetest(seeSection6).Ten
5.2 Standard Food Soil Preparation—A mixture of 80
tumblers simplify scoring.
weight % of margarine and 20 weight % of powdered milk is
4.2.1 Before each use, even if new, the glass tumblers may
prepared. The margarine is warmed until fluid (not over 100°F
be cleaned in a machine, first in a 1 % solution of citric acid
(37.8°C)) and the powdered milk is sifted in and mixed
thoroughly.The mixture should be refrigerated when not in use
and not kept more than 2 weeks.
This test method is under the jurisdiction of ASTM Committee D12 on Soaps
5.3 Optional Food Soil Preparation—This mixture consists
and Other Detergents , and is the direct responsibility of Subcommittee D12.16 on
of 70 % margarine, 15 % powdered milk, and 15 % cooked
Hard Surface Cleaning.
cereal. The cooked cereal is separately prepared as follows:
Current edition approved May 31, 1985. Published July 1985. Originally
published as D3556–76 T. Last previous edition D3556–79. DOI: 10.1520/D3556-
85R01.
Libby No. 53, 10-oz (300-mL) size or Federal No. 812, 10.5-oz, (310-mL) size,
have been found satisfactory. Any commercial brand of these items is satisfactory.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
D3556–85 (2001)
Add 45 g of cereal to 228 g of water, heat to boiling, and boil to magnesium ion. If natural water is used it should be
for 5 min. Disso
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