ASTM C675-91(1996)

Standard Test Method for Alkali Resistance of Ceramic Decorations on Returnable Beverage Glass Containers

SCOPE
1.1 This test method covers determination of the alkali resistance of ceramic labels (hereafter referred to as ACL (Applied Color Label)) on returnable beverage bottles (hereafter referred to as ware) to ensure the necessary durability of the label. A number of states require the cleaning and sanitizing of this ware by washing in hot alkali solutions. Accelerated tests are needed to ensure that the ACL will withstand the anticipated number of washings and still present an acceptable ware identification and appearance.  
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

• Status: Historical
• Publication Date: 14-Nov-1991
• Technical Committee: C14 - Glass and Glass Products
• Drafting Committee: C14.10 - Glass Decoration

Relations

• Replaced By: ASTM C675-91(2001) - Standard Test Method for Alkali Resistance of Ceramic Decorations on Returnable Beverage Glass Containers
• Effective Date: 15-Nov-1991

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: C 675 – 91 (Reapproved 1996)
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Test Method for
Alkali Resistance of Ceramic Decorations on Returnable
Beverage Glass Containers
This standard is issued under the fixed designation C 675; 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 dissolved from the ACL.
4.2 Do not use borosilicate glass containers for test solu-
1.1 This test method covers determination of the alkali
tions.
resistance of ceramic labels (hereafter referred to as ACL
(Applied Color Label)) on returnable beverage bottles (here-
5. Apparatus
after referred to as ware) to ensure the necessary durability of
5.1 Tank, steel or stainless steel, equipped with a thermo-
the label. A number of states require the cleaning and sanitizing
statically controlled means of heating, and a solution level
of this ware by washing in hot alkali solutions. Accelerated
control, to prevent variations in solution concentration and
tests are needed to ensure that the ACL will withstand the
temperature. The tank should be equipped with a coarsescreen
anticipated number of washings and still present an acceptable
mesh shelf on which ware being tested is placed to avoid
ware identification and appearance.
sludge build-up around the ware.
1.2 This standard does not purport to address all of the
5.2 Bottle Saw or Hot Wire Cutter—Either a hot wire or an
safety concerns, if any, associated with its use. It is the
abrasive wheel saw can be used to cut ware. If an abrasive
responsibility of the user of this standard to establish appro-
wheel is used, the abrasive and glass sludge should be rinsed
priate safety and health practices and determine the applica-
off the ware to avoid excessive depletion of the alkali solution.
bility of regulatory limitations prior to use.
6. Reagents
2. Summary of Method
6.1 Reagent grade chemicals shall be used in all tests.
2.1 The time required for destruction of ACL on exposure to
Unless otherwise indicated, it is intended that all reagents shall
alkali solutions is roughly proportional to the label thickness. A
conform to the specifications of the Committee on Analytical
thin coating of good alkali-resistant enamel will fail in a
Reagents of the American Chemical Society, where such
relatively short time, while an extremely heavy coating of a
specifications are available. Other grades may be used, pro-
poor alkali-resistant enamel will look reasonably good. A
vided it is first ascertained that the reagent is of sufficiently
qualitative procedure is described. Any plant or laboratory
high purity to permit its use without lessening the accuracy of
using this procedure should establish its own standards.
the determination.
2.1.1 This test method is a qualitative method and deter-
6.2 Alkali Solution—Prepare the alkali solution by mixing
mines the time required for 90 % destruction of any ACL
the following reagents:
exposed to an alkali solution by visual inspection. This test
weight%
method requires a minimum of skill and experience by the
Sodium hydroxide (NaOH) 9.1
operator.
Trisodium phosphate (Na PO ·12H O) 0.9
3 4 2
Tap water 90.0
3. Significance and Use
7. Test Specimens
3.1 This test method provides a means for determining the
7.1 The test ware should be representative of the lot or run
durability of decorated returnable glass beverage containers
and should have good application and fire. Tests should be run
which may be a prerequisite in product specifications.
on ware with bottoms removed. The bottoms can be easily
4. Interferences
...