ASTM D6215-98a

Standard Guide for Removal of Oily Soils from Metal Surfaces (Withdrawn 2004)

SCOPE
1.1 This guide covers the determination of the amount of an oily soil removed from a metal surface.
WITHDRAWN RATIONALE
This guide covers the determination of the amount of an oily surface removed from a metal surface.
Formerly under the jurisdiction of Committee D12 on Soap and Other Detergents, this guide was withdrawn in October 2004.

General Information

• Status: Withdrawn
• Publication Date: 09-Jun-1998
• Withdrawal Date: 07-Dec-2004
• ICS: 25.220.10 - Surface preparation
• Technical Committee: D12 - Soaps and Other Detergents
• Drafting Committee: D12.16 - Hard Surface Cleaning

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:D6215–98a
Standard Guide for
Removal of Oily Soils from Metal Surfaces
This standard is issued under the fixed designation D 6215; 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 coupon. The soiled coupon is then cleaned in a beaker of wash
liquor using a magnetic stir plate and stir bar. Following
1.1 This guide covers the determination of the amount of an
cleaning, the metal coupon is immediately removed to a beaker
oily surface removed from a metal surface.
of extraction solvent to remove any remaining residual oily
1.2 This guide employs the use of a fluorescent dye as a
soil. The solvent extract is then measured for fluorescent dye
tracer to measure the level of residual oil.
absorbance using a spectrophotometer.
1.3 This guide is designed to evaluate metal cleaners de-
signed or developed for the removal of oily and greasy soils
4. Significance and Use
from metal surfaces such as stamping presses, metal cans,
4.1 The guide suggests a laboratory guide for use in the
metal tanks, and other such items.
development of cleaners designed to remove oily based soils
1.4 This guide employs the use of a generic oily soil. As
from metal surfaces. This guide can be used to evaluate the
there is no one universal oily soil, the choice of the soil and
removal of numerous oily type soils from a myriad of metal
substrate used should be agreed upon by the testing laborato-
surfaces.Thisguideshouldfinduseinthoseindustriesrequired
ry(s) and those using the data to evaluate cleaning performance
to clean, among other, metal cans, rolled metals, large indus-
prior to testing.
trial production machinery, and blending vessels.
1.5 This guide is not intended for use as an evaluation tool
4.2 This guide employs the use of a fluorescent tracer,
for critical areas, which might include surfaces to be painted.
which will allow for the accurate quantitative measurement of
1.6 This standard does not purport to address all of the
the amount of soil removed and will assist in the ranking of
safety concerns, if any, associated with its use. It is the
cleaner performance.
responsibility of the user of this standard to establish appro-
4.3 This guide will provide a fast and efficient test protocol
priate safety and health practices and to determine the
for the determination of oily soil removal by a wet cleaning
applicability of regulatory limitations prior to use.
process. This guide will result in a time savings over other
2. Terminology methods which traditionally must allow for a drying step prior
to weight loss determinations. Further, the guide will quantitate
2.1 Definitions:
the level of soil removed, thus providing a means of evaluating
2.1.1 soil—foreign matter present on a metal surface.
the cleanliness of a surface which may not be water break free.
2.1.2 substrate—any metal-based surface that is to be
cleaned.
5. Apparatus
2.1.3 water break—visual rating of a metal surface rinsed
5.1 Beakers, 150 and 250 mL.
with deionized water whereby the rinse water film breaks into
5.2 Volumetric Flasks, 100 mL.
beads or runs off exposing the surface, or both, which is
5.3 Magnetic Stir Bars, 1 in. length, and combination hot
indicative of residual soil.
plate stirrers.
2.1.4 water break free—visual rating of a metal surface
5.4 Adjustable Wavelength Spectrophotometer.
rinsed with deionized water whereby the rinse water forms a
5.5 Graduated Serological Pipets.
uniform wetted layer covering the surface.
5.6 Black Light.
3. Summary of Guide 5.7 Fluorescent Yellow 131SC Dye.
5.8 White Mineral Oil.
3.1 An oily based soil is artificially tagged with a fluores-
5.9 Propylene Glycol n-Butyl Ether (PnB).
cent dye tracer. The soil is artificially applied to a test metal
5.10 Metal Coupon, 1 by 3 in., 16 gage, #14 finish, 316
stainless steel.
This guide is under the jurisdiction of ASTM Committee D-12 on Soap and
Other Detergents and is the direct responsibility of Subcommittee D12.16 on Hard
Surface Cleaning.
Current edition approved June 10, 1998. Published January 1999. Originally
published as D 6215-98. Last previous edition D 6215-98.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
D6215
6. Preparation of Soil/Substrate Combination 8.2 Prepare the wash liquor in a 250 mL beaker by mixing
0.2 g test metal cleaner to 199.8 g water to make 200 g of
6.1 Clean metal test coupons in an industry specified stan-
solution. The type of water or hardness level, or both, is to be
dard alkaline surfactant based detergent. Scrub the panels to
selected based on individual performance requirements.
remove residual soils and avoid surface damage. Rinse the
panels with appropriate rinse water followed by terminal 8.3 Add a 1-in. length magnetic stir bar to the wash liquor,
and place the beaker onto a combination hot plate stirrer.
rinsing with deionized water. Passivate the cleaned and rinsed
coupons in a solution of 20 % by weight nitric acid for a Carefully adjust the stirrer to obtain a moderate speed such that
a vortex just becomes visible at the air/liquor interface. Add
minimum of 4 h, but not to exceed 24 h. Remove the coupons
from the nitric acid solution, rinse in deionized water, and set one soiled coupon to the beaker and position it so the soiled
surface is f
...