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ASTM C149-14(2020)

(Test Method)

Standard Test Method for Thermal Shock Resistance of Glass Containers

Standard Test Method for Thermal Shock Resistance of Glass Containers

ABSTRACT
This test method covers the determination of the relative thermal shock resistance of commercial bottles and jars and is intended to apply to all types of glass containers that are required to withstand sudden changes in temperature in service. The test apparatus consists essentially of a basket for holding the glassware upright, a hot water tank, a cold water tank, and a timed means for immersing and transferring the basket from the hot to the cold bath. Indicating controllers or dial thermometers should be used to maintain the temperatures of the baths. Test procedures included in this specification include pass tests, progressive tests to a predetermined percent of breakage, total progressive tests, and high-level tests.
SCOPE
1.1 This test method covers the determination of the relative resistance of commercial glass containers (bottles and jars) to thermal shock and is intended to apply to all types of glass containers that are required to withstand sudden temperature changes (thermal shock) in service such as in washing, pasteurization, or hot pack processes, or in being transferred from a warm to a colder medium or vice versa.  
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.  
1.3 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.  
1.4 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

Status
Published
Publication Date
31-Jul-2020
ICS
81.040.30 - Glass products
Technical Committee
C14 - Glass and Glass Products
Drafting Committee
C14.07 - Glass Containers
Current Stage
Ref Project

Relations

Replaces
ASTM C149-14 - Standard Test Method for Thermal Shock Resistance of Glass Containers
Effective Date
01-Aug-2020
Refers
ASTM C224-78(2020) - Standard Practice for Sampling Glass Containers
Effective Date
01-Aug-2020
Refers
ASTM C224-78(2014) - Standard Practice for Sampling Glass Containers
Effective Date
01-Oct-2014
Refers
ASTM C224-78(2009) - Standard Practice for Sampling Glass Containers
Effective Date
01-May-2009
Refers
ASTM C224-78(2004)e1 - Standard Practice for Sampling Glass Containers
Effective Date
01-Apr-2004
Refers
ASTM C224-78(1999) - Standard Practice for Sampling Glass Containers
Effective Date
10-Apr-1999
Referred By
ASTM F2179-20 - Standard Specification for Annealed Soda-Lime-Silicate Glass Containers That Are Produced for Use as Candle Containers
Effective Date
01-Aug-2020

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ASTM C149-14(2020) - Standard Test Method for Thermal Shock Resistance of Glass ContainersASTM C149-14(2020) - Standard Test Method for Thermal Shock Resistance of Glass Containers
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ASTM C149-14(2020) - Standard Test Method for Thermal Shock Resistance of Glass Containers
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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: C149 − 14 (Reapproved 2020)
Standard Test Method for
Thermal Shock Resistance of Glass Containers
This standard is issued under the fixed designation C149; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope 3. Apparatus
3.1 The apparatus shall consist essentially of a basket for
1.1 This test method covers the determination of the relative
holding the glassware upright, two tanks, one containing hot
resistance of commercial glass containers (bottles and jars) to
water and one containing cold water, and an automatically
thermal shock and is intended to apply to all types of glass
timed means for immersing and transferring the basket of
containers that are required to withstand sudden temperature
bottles from the hot to the cold bath. A suitable type of
changes (thermal shock) in service such as in washing,
apparatus is illustrated in Fig. 1.
pasteurization, or hot pack processes, or in being transferred
from a warm to a colder medium or vice versa.
3.2 A device shall be provided to maintain the temperature
of the baths within 61.1 °C (2 °F) of the specified tempera-
1.2 The values stated in SI units are to be regarded as the
tures. Indicating controllers that control the heating of the hot
standard. The values given in parentheses are for information
water and the cooling of the cold water are recommended.
only.
Otherwise dial thermometers should be attached and the
1.3 This standard does not purport to address all of the
temperatures controlled manually.
safety concerns, if any, associated with its use. It is the
3.3 The capacity of each tank shall be at least 3.8 L (1 gal)
responsibility of the user of this standard to establish appro-
for each 0.45 kg (1 lb) of glass tested.
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use.
4. Sampling
1.4 This international standard was developed in accor-
4.1 Methods of sampling a minimum lot from a group of
dance with internationally recognized principles on standard-
containers of a given type are given in Practice C224, for the
ization established in the Decision on Principles for the
various situations to which it may apply.
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
5. Procedure
Barriers to Trade (TBT) Committee.
5.1 Adjust the temperatures of the baths so that the cold
bath is at 21 °C (70 °F) and the hot bath is at a temperature
2. Referenced Documents
hotter than the cold bath by a specified differential, preferably
2.1 ASTM Standard:
42 °C. As a result, the first immersion temperature will be
C224 Practice for Sampling Glass Containers
63 °C (145 °F, or a differential of approximately 75°F) (Note
2.2 ASTM Adjunct:
1). Fill, or partially fill, the basket, with empty bottles, and
Apparatus for thermal shock test of glass containers (6
when the temperatures of the baths are within 61.1 °C (2 °F)
Drawings)
of those specified immerse the basket in the hot bath in such a
manner that the bottles become completely filled with hot
water, allow to soak for 5 min, transfer to the cold bath, and
immerse for 30 s, and then remove from the cold bath. Control
This test method is under the jurisdiction of ASTM Committee C14 on Glass
the 5-min immersion in the hot bath within 10 s, and the time
and Glass Products and is the direct responsibility of Subcommittee C14.07 on
Glass Containers.
of transfer from the hot to the cold bath shall be 15 61s.
Current edition approved Aug. 1, 2020. Published August 2020. Originally
During the test, protect the apparatus from drafts in a sheltered
approved in 1939. Last previous edition approved in 2014 as C149 – 14. DOI:
area. Observe the number of containers failing in the test by
10.1520/C0149-14R20.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or individual inspection of each.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
NOTE1—Ifacoldbathtemperatureotherthan21°C(70°F)isused,the
Standards volume information, re
...

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SCOPE
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3.1 The solubility of glass in contact with food, beverages, or pharmaceutical products is an important consideration for the safe packaging and storage of such materials. Autoclave conditions are specified since sterilization is often employed for the packaging of the product. It also represents one of the most extreme conditions, particularly of temperature, that containers will ordinarily experience. Any of the three test methods described may be used to establish specifications for conformity to standard values, either as specified by a customer, an agency, or “The United States Pharmacopeia:”  
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SCOPE
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SCOPE
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4.1 Density as a fundamental property of glass has basic significance. It is useful in the physical description of the glass and as essential data for research, development, engineering, and production.
SCOPE
1.1 This test method covers the determination of the density of glasses at or near 25 °C, by buoyancy.  
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ABSTRACT
This specification covers heat-treated flat glass - kind HS, kind FT coated and uncoated glass used in general building construction. Glass furnished under this specification shall be of the following conditions: condition A - uncoated surfaces, condition B - spandrel glass, one surface ceramic coated, and condition C - other coated glass. Flat glass furnished under this specification shall be of the following kinds: kind HS - heat-strengthened glass shall be flat glass, either transparent or patterned, in accordance with the applicable requirements, and kind FT - fully tempered glass shall be flat glass, either transparent or patterned in accordance with the applicable requirements. All fabrication, such as cutting to overall dimensions, edgework, drilled holes, notching, grinding, sandblasting, and etching, shall be performed before strengthening or tempering and shall be as specified. Requirements for fittings and hardware shall be as specified. In heat-strengthened and fully tempered glass, a strain pattern, which is not normally visible, may become visible under certain light conditions. The support system and the amount of glass deflection for a given set of wind-load conditions must be considered for design purposes. Heat-treated flat glass cannot be cut after tempering. Heat-treated glass can be furnished with holes, notches, cutouts, and bevels. The expansion fit and porosity of the ceramic coating shall be tested to meet the requirements prescribed. Specimens for evaluation of resistance to alkali and acid shall be prepared and tested to meet the requirements prescribed.
SCOPE
1.1 This specification covers the requirements for monolithic flat heat-strengthened and fully tempered coated and uncoated glass produced on a horizontal tempering system used in general building construction and other applications.  
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6.3 Many other factors shall be considered in glass type and thickness selection. These factors include but are not limited to: thermal stresses, spontaneous breakage of tempered glass, the effects of windborne debris, excessive deflections, behavior of glass fragments after breakage, blast, seismic effects, building movement, heat flow, edge bite, noise abatement, and potential post-breakage consequences. In addition, considerations set forth in building codes along with criteria presented in safety-glazing standards and site-specific concerns may control the ultimate glass type and thickness selection.  
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SCOPE
1.1 This practice covers procedures to determine the load resistance (LR) of specified glass types, including combinations of glass types used in a sealed insulating glass (IG) unit, exposed to a uniform lateral load of short or long duration, for a specified probability of breakage.  
1.2 This practice applies to vertical and sloped glazing in buildings for which the specified design loads consist of wind load, snow load and self-weight with a total combined magnitude less than or equal to 15 kPa (315 psf). This practice shall not apply to other applications including, but not limited to, balustrades, glass floor panels, aquariums, structural glass members, and glass shelves.  
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1.4 This practice does not apply to any form of wired, patterned, sandblasted, drilled, notched, or grooved glass. This practice does not apply to glass with surface or edge treatments that reduce the glass strength.
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Standard Specification for Glasses in Laboratory Apparatus

ABSTRACT
This specification covers the glasses commonly used to manufacture laboratory glass apparatus. Three types of glasses are included: Type I, Class A which is a low-expansion borosilicate glass, Type I, Class B which is an alumino-borosilicate glass, and Type II which is a soda-lime glass. Different tests shall be conducted in order to determine the following properties of glasses: linear coefficient of expansion, annealing point, softening point, density, and chemical durability.
SCOPE
1.1 This specification covers the glasses commonly used to manufacture laboratory glass apparatus.  
1.2 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.

  • Technical specification
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    English language
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