ASTM C675-91(2022)
(Test Method)Standard Test Method for Alkali Resistance of Ceramic Decorations on Returnable Beverage Glass Containers
Standard Test Method for Alkali Resistance of Ceramic Decorations on Returnable Beverage Glass Containers
SIGNIFICANCE AND USE
3.1 This test method provides a means for determining the durability of decorated returnable glass beverage containers which may be a prerequisite in product specifications.
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
General Information
Standards Content (Sample)
This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: C675 − 91 (Reapproved 2022)
Standard Test Method for
Alkali Resistance of Ceramic Decorations on Returnable
Beverage Glass Containers
This standard is issued under the fixed designation C675; 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 3. Significance and Use
1.1 This test method covers determination of the alkali 3.1 This test method provides a means for determining the
resistance of ceramic labels (hereafter referred to as ACL durability of decorated returnable glass beverage containers
(AppliedColorLabel)onreturnablebeveragebottles(hereafter which may be a prerequisite in product specifications.
referred to as ware) to ensure the necessary durability of the
label.Anumber of states require the cleaning and sanitizing of 4. Interferences
this ware by washing in hot alkali solutions. Accelerated tests
4.1 Prepare fresh alkali solution for each set of ware and do
are needed to ensure that the ACL will withstand the antici-
not use the solution more than 24 h because of carbon dioxide
pated number of washings and still present an acceptable ware
(CO )absorptionandtheinhibitingactionofboroncompounds
identification and appearance.
dissolved from the ACL.
1.2 This standard does not purport to address all of the
4.2 Do not use borosilicate glass containers for test solu-
safety concerns, if any, associated with its use. It is the
tions.
responsibility of the user of this standard to establish appro-
priate safety, health, and environmental practices and deter-
5. Apparatus
mine the applicability of regulatory limitations prior to use.
5.1 Tank, steel or stainless steel, equipped with a thermo-
1.3 This international standard was developed in accor-
statically controlled means of heating, and a solution level
dance with internationally recognized principles on standard-
control, to prevent variations in solution concentration and
ization established in the Decision on Principles for the
temperature. The tank should be equipped with a coarsescreen
Development of International Standards, Guides and Recom-
mesh shelf on which ware being tested is placed to avoid
mendations issued by the World Trade Organization Technical
sludge build-up around the ware.
Barriers to Trade (TBT) Committee.
5.2 Bottle Saw or Hot Wire Cutter—Either a hot wire or an
2. Summary of Method
abrasive wheel saw can be used to cut ware. If an abrasive
wheel is used, the abrasive and glass sludge should be rinsed
2.1 The time required for destruction ofACLon exposure to
off the ware to avoid excessive depletion of the alkali solution.
alkalisolutionsisroughlyproportionaltothelabelthickness.A
thin coating of good alkali-resistant enamel will fail in a
6. Reagents
relatively short time, while an extremely heavy coating of a
poor alkali-resistant enamel will look reasonably good. A 6.1 Reagent grade chemicals shall be used in all tests.
qualitative procedure is described. Any plant or laboratory Unless otherwise indicated, it is intended that all reagents shall
using this procedure should establish its own standards. conform to the specifications of the Committee on Analytical
2.1.1 This test method is a qualitative method and deter- Reagents of the American Chemical Society, where such
mines the time required for 90 % destruction of any ACL specifications are available. Other grades may be used, pro-
exposed to an alkali solution by visual inspection. This test vided it is first ascertained that the reagent is of sufficiently
method requires a minimum of skill and experience by the high purity to permit its use without lessening the accuracy of
operator. the determination.
1 2
This test method is under the jurisdiction of ASTM Committee C14 on Glass Reagent Chemicals, American Chemical Society Specifications , American
and Glass Products and is the direct responsibility of Subcommittee C14.10 on Chemical Society, Washington, DC. For suggestions on the testing of reagents not
Glass Decoration. listed by the American Chemica
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