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ASTM D3656/D3656M-13(2021)

(Specification)

Standard Specification for Insect Screening and Louver Cloth Woven fromVinyl-Coated Glass Yarns

Standard Specification for Insect Screening and Louver Cloth Woven from<brk/>Vinyl-Coated Glass Yarns

ABSTRACT
This specification covers the requirements for insect screening and louver cloth made from vinyl-coated glass yarns. Specifically covered here are: commercial standard vinyl-coated glass yarn insect screening designed and woven primarily for installation in or on any dwelling, patio, screening enclosure, building, or structure for the purpose of keeping out flies, mosquitoes, and most insects; and vinyl-coated glass yarn louver cloth used extensively in soffit and louver vents to keep out most large insects, birds, and airborne litter, while at the same time providing for adequate ventilation and air circulation. Products are produced in two basic classes (Classes 1 and 2) based on nominal thickness. Products shall be suitably tested and conform accordingly to specified requirements in tems of appearance, mesh, roll length, mass per unit area, flame resistance, fabric stability, bursting strength, stiffness index, and color stability to accelerated weathering.
SCOPE
1.1 This specification covers the requirements for vinyl-coated glass yarn insect screening and louver cloth.  
1.2 This specification is intended to assist ultimate users by designating the sizes and types of these products that are generally available in the industry.  
1.3 This specification shows the terminology and requirements for:  
1.3.1 Commercial standard vinyl-coated glass yarn insect screening designed and woven primarily for installation in or on any dwelling, patio, screening enclosure, building, or structure for the purpose of keeping out flies, mosquitoes, and most insects.  
1.3.2 Vinyl-coated glass yarn louver cloth used extensively in soffit and louver vents to keep out most large insects, birds, and airborne litter, while at the same time providing for adequate ventilation and air circulation.  
1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.  
1.5 The following precautionary caveat pertains only to the test methods portions, Sections 8 – 19, 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.6 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
30-Jun-2021
ICS
59.080.40 - Coated fabrics
59.100.10 - Textile glass materials
Technical Committee
D13 - Textiles
Drafting Committee
D13.18 - Glass Fiber and its Products
Current Stage
Ref Project

Relations

Refers
ASTM D1776/D1776M-20 - Standard Practice for Conditioning and Testing Textiles
Effective Date
01-Feb-2020

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ASTM D3656/D3656M-13(2021) - Standard Specification for Insect Screening and Louver Cloth Woven from<brk/>Vinyl-Coated Glass YarnsASTM D3656/D3656M-13(2021) - Standard Specification for Insect Screening and Louver Cloth Woven from<brk/>Vinyl-Coated Glass Yarns
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ASTM D3656/D3656M-13(2021) - Standard Specification for Insect Screening and Louver Cloth Woven from<brk/>Vinyl-Coated Glass Yarns
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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:D3656/D3656M −13 (Reapproved 2021)
Standard Specification for
Insect Screening and Louver Cloth Woven from
1
Vinyl-Coated Glass Yarns
This standard is issued under the fixed designation D3656/D3656M; 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 Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
1.1 This specification covers the requirements for vinyl-
Barriers to Trade (TBT) Committee.
coated glass yarn insect screening and louver cloth.
1.2 This specification is intended to assist ultimate users by
2. Referenced Documents
designating the sizes and types of these products that are
2
2.1 ASTM Standards:
generally available in the industry.
D123Terminology Relating to Textiles
1.3 This specification shows the terminology and require-
D1776/D1776MPractice for Conditioning and Testing Tex-
ments for:
tiles
1.3.1 Commercial standard vinyl-coated glass yarn insect
D3374/D3374MSpecification for Vinyl-Coated GlassYarns
screening designed and woven primarily for installation in or
D3773/D3773MTest Methods for Length of Woven Fabric
on any dwelling, patio, screening enclosure, building, or
D3774Test Method for Width of Textile Fabric
structure for the purpose of keeping out flies, mosquitoes, and
D3775TestMethodforEnd(Warp)andPick(Filling)Count
most insects.
of Woven Fabrics
1.3.2 Vinyl-coated glass yarn louver cloth used extensively
D3776/D3776MTest Methods for Mass Per Unit Area
in soffit and louver vents to keep out most large insects, birds,
and airborne litter, while at the same time providing for (Weight) of Fabric
adequate ventilation and air circulation. D3786/D3786MTest Method for Bursting Strength of Tex-
tileFabrics—DiaphragmBurstingStrengthTesterMethod
1.4 The values stated in either SI units or inch-pound units
D4028/D4028MSpecification for Solar Screening Woven
are to be regarded separately as standard. The values stated in
from Vinyl-Coated Fiber Glass Yarn
eachsystemarenotnecessarilyexactequivalents;therefore,to
D4372Specification for Flame-Resistant Materials Used in
ensure conformance with the standard, each system shall be
3
Camping Tentage (Withdrawn 2002)
used independently of the other, and values from the two
systems shall not be combined. D4912/D4912MTest Method for Fabric Stability of Vinyl-
Coated Glass Yarn Insect Screening and Louver Cloth
1.5 The following precautionary caveat pertains only to the
D4929Test Method for Determination of Organic Chloride
test methods portions, Sections8–19, of this specification.
Content in Crude Oil
This standard does not purport to address all of the safety
D7018/D7018MTerminology Relating to Glass Fiber and
concerns, if any, associated with its use. It is the responsibility
3
Its Products (Withdrawn 2021)
of the user of this standard to establish appropriate safety,
4
health, and environmental practices and determine the appli-
2.2 AATCC Standard:
cability of regulatory limitations prior to use.
Evaluation Procedure 1,Gray Scale for Color Change
1.6 This international standard was developed in accor-
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
1
This specification is under the jurisdiction of ASTM Committee D13 on the ASTM website.
3
TextilesandisthedirectresponsibilityofSubcommitteeD13.18onGlassFiberand The last approved version of this historical standard is referenced on
its Products. www.astm.org.
4
CurrenteditionapprovedJuly1,2021.PublishedJuly2021.Originallyapproved Available from American Association of Textile Chemists and Colorists
in 1978. Last previous edition approved in 2013 as D3656/D3656M–13. DOI: (AATCC), P.O. Box 12215, Research Triangle Park, NC 27709-2215, http://
10.1520/D3656_D3656M-13R21. www.aatcc.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D3656/D3656M−13 (2021)
TABLE 1 Generally Available Mesh, Widths, and Colors
Standard Construction
Standard Widths
Nominal Yarn Diamete
...

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Standard Guide for Monitoring the Neutron Exposure of LWR Reactor Pressure Vessels

SIGNIFICANCE AND USE
4.1 Regulatory Requirements—The USA Code of Federal Regulations (10CFR Part 50, Appendix H) requires the implementation of a reactor vessel materials surveillance program for all operating LWRs. Other countries have similar regulations. The purpose of the program is to (1) monitor changes in the fracture toughness properties of ferritic materials in the reactor vessel beltline6 resulting from exposure to neutron irradiation and the thermal environment, and (2) make use of the data obtained from surveillance programs to determine the conditions under which the vessel can be operated with adequate margins of safety throughout its service life. Practice E185, derived mechanical property data, and (r, θ, z) physics-dosimetry data (derived from the calculations and reactor cavity and surveillance capsule measurements (1) using physics-dosimetry standards) can be used together with information in Guide E900 and Refs. 4, 11-18 to provide a relation between property degradation and neutron exposure, commonly called a “trend curve.” To obtain this trend curve at all points in the pressure vessel wall requires that the selected trend curve be used together with the appropriate (r, θ, z) neutron field information derived by use of this guide to accomplish the necessary interpolations and extrapolations in space and time.  
4.2 Neutron Field Characterization—The tasks required to satisfy the second part of the objective of 4.1 are complex and are summarized in Practice E853. In doing this, it is necessary to describe the neutron field at selected (r, θ, z) points within the pressure vessel wall. The description can be either time dependent or time averaged over the reactor service period of interest. This description can best be obtained by combining neutron transport calculations with plant measurements such as reactor cavity (ex-vessel) and surveillance capsule or RPV cladding (in-vessel) measurements, benchmark irradiations of dosimeter sensor materials, and knowledge of th...
SCOPE
1.1 This guide establishes the means and frequency of monitoring the neutron exposure of the LWR reactor pressure vessel throughout its operating life.  
1.2 The physics-dosimetry relationships determined from this guide may be used to estimate reactor pressure vessel damage through the application of Practice E693 and Guide E900, using fast neutron fluence (E > 1.0 MeV and E > 0.1 MeV), displacements per atom (dpa), or damage-function-correlated exposure parameters as independent exposure variables. Supporting the application of these standards are the E853, E944, E1005, and E1018 standards, identified in 2.1.  
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.

  • Guide
    12 pages
    English language
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  • Guide
    12 pages
    English language
    sale 15% off