ASTM C1443-99(2005)

Standard Specification for Glasses, Portlight, Circular, Fully Tempered

ABSTRACT
This specification covers circular, fully tempered, high clarity, flat glasses prescribed for use in portlight applications. The glazing quality float glasses are classified into four types according to the type of edge and the texture of each face. All products should conform to the required values for breaking strength, surface and edge compression, clarity, and warpage and quality of finish.
SCOPE
1.1 This specification covers the requirements for circular, fully tempered, high clarity, flat glasses used for portlight applications.
1.2 The dimensional values stated in English units are to be regarded as standard. The values given in parentheses are for information only.
1.3 The following safety hazard caveat pertains only to the test method portion, Section 11, of this specification: 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 to determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 31-Mar-2005
• ICS: 81.040.20 - Glass in building
• Technical Committee: C14 - Glass and Glass Products
• Drafting Committee: C14.08 - Flat Glass

Relations

• Replaces: ASTM C1443-99 - Standard Specification for Glasses, Portlight, Circular, Fully Tempered
• Effective Date: 01-Apr-2005
• Replaced By: ASTM C1443-99(2010) - Standard Specification for Glasses, Portlight, Circular, Fully Tempered
• Effective Date: 01-Mar-2010

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: C1443 – 99 (Reapproved 2005)
Standard Specification for
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Glasses, Portlight, Circular, Fully Tempered
This standard is issued under the fixed designation C1443; 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 4. Classification
1.1 This specification covers the requirements for circular, 4.1 Glasses covered by this specification shall be of the
fully tempered, high clarity, flat glasses used for portlight following types, as specified (see 5.1):
applications. 4.1.1 Type 1—Plain edges, both faces polished,
1.2 The dimensional values stated in English units are to be 4.1.2 Type II—Plain edge, one face polished, opposite face
regarded as standard. The values given in parentheses are for frosted,
information only. 4.1.3 Type III—Rabbeted edge, both faces polished, or
1.3 The following safety hazard caveat pertains only to the 4.1.4 Type IV—Rabbeted edge, one face polished, opposite
test method portion, Section 11, of this specification: This face frosted.
standard does not purport to address all of the safety concerns,
5. Ordering Information
if any, associated with its use. It is the responsibility of the user
of this standard to establish appropriate safety and health 5.1 Purchasers should select the preferred options permitted
in this specification, and include the following information in
practices and determine the applicability of regulatory limita-
tions prior to use. procurement documents:
5.1.1 Title, number, and date of this specification,
2. Referenced Documents
5.1.2 Type of portlight glasses, as requested (see 4.1),
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2.1 ASTM Standards: 5.1.3 Dimensions of portlight glasses (see 8.1 and 9.3), and
C162 Terminology of Glass and Glass Products 5.1.4 Type, class, and quality of glass (see Specification
C1036 Specification for Flat Glass C1036) and heat treatment (see Specification C1048).
C1048 SpecificationforHeat-TreatedFlatGlass—KindHS, 5.2 Samples—If samples are to be supplied with bids, they
Kind FT Coated and Uncoated Glass should be specifically requested in the invitation for bids and
C1279 Test Method for Non-Destructive Photoelastic Mea- the particular purpose to be served by the bid sample should be
surement of Edge and Surface Stresses in Annealed, clearly stated.
Heat-Strengthened, and Fully Tempered Flat Glass
6. Materials and Manufacture
2.2 ANSI Standard:
ANSI Z1.4 Sampling Procedures and Tables for Inspection 6.1 Material—The glass used shall be glazing quality, float
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glass in accordance with the requirements for Specification
by Attributes (DOD Adopted)
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C1036, Type I, Class 1, quality q or higher, if required, and
3. Terminology
heat-treated Specification C1048, kind FT.
3.1 Definitions—For definitions of terms used in this speci- 6.2 Marking—Specimens shall exhibit the words “fully
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fication, refer to Terminology C162 and also Specifications tempered” approximately ⁄2 in. (12.7 mm) from the edge by
C1036 and C1048 and Test Method C1279. means of etching or sand blasting. Marking shall be done
before heat treating.
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This specification is under the jurisdiction of ASTM Committee C14 on Glass
7. Other Requirements
and Glass Products and is the direct responsibility of Subcommittee C14.08 on Flat
7.1 Breaking Strength—Glasses shall exhibit satisfactory
Glass.
Current edition approved April 1, 2005. Published April 2005. Originally
resistance to breakage (see 11.1.2.1).
approved in 1999. Last previous edition approved in 1999 as C1443–99. DOI:
7.2 Surface and Edge Compression—Type I and III glasses
10.1520/C1443-99R05.
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shall have a surface compression of not less than 10 000 psi or
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM an edge compression of not less than 9700 psi (see 11.1.1.2).
Standards volume information, refer to the standard’s Document Summary page on
7.3 Clarity—When glasses are tested (see 11.1.2.3), black
the ASTM website.
3 and white lines of the clarity target shall be definitely distin-
Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
guishable for all parts of the critical area.
4th Floor, New York, NY 10036.
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C1443 – 99 (2005)
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TABLE 2 Sampling for Surface and Edge Stress Examination
7.4 Warpage—Glasses shall not exhibit more than ⁄32 in.
and Tests
(0.8 mm) warpage along any line on either face (see 11.1.2.3).
Allowable Number of Allowable Number of
...