iTeh StandardsiTeh Standards
EURUSD
Your shopping cart is empty.
ASTM

ASTM D4969-07

(Specification)

Standard Specification for Polytetrafluoroethylene-(PTFE) Coated Glass Fabric

Standard Specification for Polytetrafluoroethylene-(PTFE) Coated Glass Fabric

ABSTRACT
This specification covers glass fabric impregnated, coated, and sintered on both sides with PTFE to a specified maximum nominal thickness. It does not pertain to structural fabric, single-sided PTFE coatings, or materials used for laminates. The PTFE-coated glass fabric is for electrical, chemical, and mechanical uses. The base material used in the manufacture of the products of this specification shall be a woven glass fabric. The glass fabric is impregnated or coated with polytetrafluoroethylene. When necessary, additives are used to aid the dispersion to achieve the required properties and performance of the final product. The glass fabric shall be tested for color, thickness, breaking strength, edge tear, conductivity, percent PTFE, smoothness, and porosity.
SCOPE
1.1 This specification covers glass fabric impregnated, coated, and sintered on both sides with PTFE to a nominal thickness of 0.318 mm (0.015 in.) or less.
1.2 The PTFE-coated glass fabric is for electrical, chemical, and mechanical uses.
1.3 The PTFE-coated glass fabric of this specification does not pertain to structural fabric, single-sided PTFE coatings, or materials used for laminates.
1.4 The values stated in SI units as detailed in IEEE/ASTM SI-10. Note 1 - There is no ISO standard that covers information included in this specification. The dielectric test is mentioned in ISO 12086-2 and ISO 13000-1 and 2.

General Information

Status
Historical
Publication Date
28-Feb-2007
ICS
59.080.40 - Coated fabrics
Technical Committee
D20 - Plastics
Drafting Committee
D20.15 - Thermoplastic Materials
Current Stage
Ref Project

Relations

Replaces
ASTM D4969-02 - Standard Specification for Polytetrafluoroethylene—(PTFE) Coated Glass Fabric
Effective Date
01-Mar-2007
Replaced By
ASTM D4969-07(2012) - Standard Specification for Polytetrafluoroethylene–(PTFE) Coated Glass Fabric
Effective Date
01-Apr-2012

Buy Standard

ASTM D4969-07 - Standard Specification for Polytetrafluoroethylene-(PTFE) Coated Glass FabricASTM D4969-07 - Standard Specification for Polytetrafluoroethylene-(PTFE) Coated Glass Fabric
PreviousNext
Technical specification
ASTM D4969-07 - Standard Specification for Polytetrafluoroethylene-(PTFE) Coated Glass Fabric
English language
4 pages
sale 15% off
Preview
sale 15% off
Preview

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: D4969 – 07
Standard Specification for
1
Polytetrafluoroethylene–(PTFE) Coated Glass Fabric
This standard is issued under the fixed designation D4969; 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* D4441 Specification for Aqueous Dispersions of Polytetra-
fluoroethylene
1.1 This specification covers glass fabric impregnated,
IEEE/ASTM SI-10 Standard for Use of the International
coated, and sintered on both sides with PTFE to a nominal
System of Units (SI): The Modern Metric System
thickness of 0.318 mm (0.015 in.) or less.
3
2.2 ISO Standard:
1.2 The PTFE-coated glass fabric is for electrical, chemical,
ISO 12086-2 Plastics—Fluoropolymer Dispersions and
and mechanical uses.
MouldingandExtrusionMaterials—Part2:Preparationof
1.3 The PTFE-coated glass fabric of this specification does
Test Specimens and Determination of Properties
not pertain to structural fabric, single-sided PTFE coatings, or
ISO 13000–1 and 2 Plastics—Polytetrafluoroethylene
materials used for laminates.
(PTFE) Semi-Finished Products
1.4 The values stated in SI units as detailed in IEEE/ASTM
SI-10.
3. Terminology
NOTE 1—There is no ISO standard that covers information included in
3.1 Definitions:
this specification. The dielectric test is mentioned in ISO 12086-2 and
3.1.1 Definitions of terms relating to plastics used in this
ISO 13000–1 and 2.
specification shall be in accordance with Definitions D883.
Definitions of terms relating to textiles used in this specifica-
2. Referenced Documents
tion shall be in accordance with Terminology D123.
2
2.1 ASTM Standards:
3.1.2 structural fabric—PTFE-coated fabric to a thickness
D123 Terminology Relating to Textiles
of greater than 0.381 mm (0.015 in.).
D149 Test Method for Dielectric Breakdown Voltage and
3.1.3 lot, n—one production run or a uniform blend of two
Dielectric Strength of Solid Electrical Insulating Materials
or more production runs.
at Commercial Power Frequencies
D257 Test Methods for DC Resistance or Conductance of
4. Classification
Insulating Materials
4.1 There shall be six types of PTFE-coated glass fabrics as
D374 Test Methods for Thickness of Solid Electrical Insu-
described in Table 1.
lation
4.2 Use a one-line system to specify materials covered by
D579 Specification for Greige Woven Glass Fabrics
this specification. The system uses redefined cells to refer to
D618 Practice for Conditioning Plastics for Testing
specific aspects of this specification, as illustrated below as
D737 Test Method for Air Permeability of Textile Fabrics
follows.
D751 Test Methods for Coated Fabrics
Specification
D883 Terminology Relating to Plastics
Standard Number Type Grade Class Special
D902 Test Methods for Flexible Resin-Coated Glass Fab-
Block Notes
Example: ASTM D4969-XX IV – – ,
rics and Glass Fabric Tapes Used for Electrical Insulation
D1424 Test Method for Tearing Strength of Fabrics by
For this example, the line call out would be: ASTM
Falling-Pendulum (Elmendorf-Type) Apparatus
D4969 – XX, IV– – , Porosity 15–30 CFM, and would specify
D3892 Practice for Packaging/Packing of Plastics
a Type IV porous product which is referenced in Table 1 with
nogradeorclasssincethesesubcategoriesdonotappearinthis
specification. A comma is used as the separator between the
1
This specification is under the jurisdiction of Committee D20 on Plastics and is
standard number and the type. Separators are not needed
the direct responsibility of Subcommittee D20.15 on Thermoplastic Materials.
between the type, grade, and class because they are, in turn,
Current edition approved March 1, 2007. Published March 2007. Originally
Roman numerals, Arabic digits, and uppercase letters, as
approved in 1989. Last previous edition approved in 2002 as D4969 – 02. DOI:
10.1520/D4969-07.
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
3
Standards volume information, refer to the standard’s Document Summary page on Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
the ASTM website. 4th Floor, New York, NY 10036.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
D4969 – 07
TABLE 1 PTFE-Coated Glass Fabric Types
Type Name General Description and Common Application
I Premium Smooth, defect-free, primarily used as a dielectric application, release sheet,
and Military Specification material.
II Standard Regul
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.

This May Also Interest You

ASTM
ASTM D4969-17(2022)(Specification)
Standard Specification for Polytetrafluoroethylene–(PTFE) Coated Glass Fabric

ABSTRACT
This specification covers glass fabric impregnated, coated, and sintered on both sides with PTFE to a specified maximum nominal thickness. It does not pertain to structural fabric, single-sided PTFE coatings, or materials used for laminates. The PTFE-coated glass fabric is for electrical, chemical, and mechanical uses. The base material used in the manufacture of the products of this specification shall be a woven glass fabric. The glass fabric is impregnated or coated with polytetrafluoroethylene. When necessary, additives are used to aid the dispersion to achieve the required properties and performance of the final product. The glass fabric shall be tested for color, thickness, breaking strength, edge tear, conductivity, percent PTFE, smoothness, and porosity.
SCOPE
1.1 This specification covers glass fabric impregnated, coated, and sintered on both sides with PTFE to a nominal thickness of 0.318 mm (0.015 in.) or less.  
1.2 The PTFE-coated glass fabric is for electrical, chemical, and mechanical uses.  
1.3 The PTFE-coated glass fabric of this specification does not pertain to structural fabric, single-sided PTFE coatings, or materials used for laminates.  
1.4 The values stated in SI units as detailed in IEEE/ASTM SI-10.  
Note 1: There is no ISO standard that covers information included in this specification. The dielectric test is mentioned in ISO 12086-2 and ISO 13000-1 and -2.  
1.5 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
    4 pages
    English language
    sale 15% off
ASTM
ASTM D4969-17(2022)(Specification)
Standard Specification for Polytetrafluoroethylene–(PTFE) Coated Glass Fabric

ABSTRACT
This specification covers glass fabric impregnated, coated, and sintered on both sides with PTFE to a specified maximum nominal thickness. It does not pertain to structural fabric, single-sided PTFE coatings, or materials used for laminates. The PTFE-coated glass fabric is for electrical, chemical, and mechanical uses. The base material used in the manufacture of the products of this specification shall be a woven glass fabric. The glass fabric is impregnated or coated with polytetrafluoroethylene. When necessary, additives are used to aid the dispersion to achieve the required properties and performance of the final product. The glass fabric shall be tested for color, thickness, breaking strength, edge tear, conductivity, percent PTFE, smoothness, and porosity.
SCOPE
1.1 This specification covers glass fabric impregnated, coated, and sintered on both sides with PTFE to a nominal thickness of 0.318 mm (0.015 in.) or less.  
1.2 The PTFE-coated glass fabric is for electrical, chemical, and mechanical uses.  
1.3 The PTFE-coated glass fabric of this specification does not pertain to structural fabric, single-sided PTFE coatings, or materials used for laminates.  
1.4 The values stated in SI units as detailed in IEEE/ASTM SI-10.  
Note 1: There is no ISO standard that covers information included in this specification. The dielectric test is mentioned in ISO 12086-2 and ISO 13000-1 and -2.  
1.5 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
    4 pages
    English language
    sale 15% off
ASTM
ASTM D4028/D4028M-13(2021)(Specification)
Standard Specification for Solar Screening Woven from Vinyl-Coated Fiber Glass Yarn

ABSTRACT
This specification covers the general and physical requirements for commercial standard solar screening woven from vinyl-coated fiber glass yarn. The material shall conform to general and physical requirements of this specification. General requirements include workmanship, plasticizers, color, selvage, yarn splices, and container dimensions and rolls put-up. Physical requirements include roll appearance, mesh, roll length, roll width, mass per unit area, ignition loss, breaking strength, fabric stability, shading coefficient, flame resistance, blocking resistance, and color stability to accelerated weathering. Testing of both general and physical requirements shall conform to the test methods detailed in this specification. Lot and sample size shall be according to the acceptance number of the specification.
SCOPE
1.1 This specification covers the requirements for vinyl-coated fiber glass solar screening, and should help users recognize the characteristics of acceptable vinyl-coated fiber glass solar screening. This specification is limited in application to vinyl-coated fiber glass solar screening that is produced with a ribbed pattern woven in the warp direction. The applicability of this specification to vinyl-coated fiber glass type solar screening of a non-rib, a double rib (ribs in both warp and filling direction), or a filling rib construction is not known.  
1.2 This specification shows the definitions, general requirements, and physical requirements for commercial standard vinyl-coated fiber glass solar screening designed and woven for installation in any dwelling, building, or structure for the purpose of providing a significant reduction in solar heat gain, while providing outward view and interior light. Solar screening provides a structure that has insect-restraining capabilities equivalent to standard insect screening.  
Note 1: For information on standard insect screening, see Specification D3656/D3656M.  
1.3 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.  
1.4 The following precautionary caveat pertains only to the test method portion, Sections 8 – 21 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.  
1.5 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
    10 pages
    English language
    sale 15% off
ASTM
ASTM D1668/D1668M-97a(2021)(Specification)
Standard Specification for Glass Fabrics (Woven and Treated) for Roofing and Waterproofing

ABSTRACT
This specification covers finished and treated, woven glass fabrics coated with either asphalt, coal-tar pitch, or an organic resin compatible with the roofing, waterproofing, or other usage as specified by the purchaser. Asphalt treated Type I glass fabrics are suitable for use with all asphalts and asphalt based compounds. Coal tar pitch treated Type II glass fabrics, are suitable for use with all coal tar pitches and coal tar pitch based compounds. And finally, for organic resin treated Type III glass fabrics, the purchaser and supplier shall agree on an organic resin that is compatible with and/or suitable for the plying liquid plying materials either specified or to be used. This organic resin shall not be water soluble. Fabric specimens shall be appropriately sampled and tested, and consequently adhere to the following properties: thread count for both warp and filling threads; organic resin mass, width, length, area coverage, and mass; moisture present; and tensile strength.
SCOPE
1.1 This specification covers finished treated (coated) woven-glass fabrics coated with either asphalt, coal-tar pitch, or an organic resin compatible with the roofing, waterproofing, or other usage as specified by the purchaser.  
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.  
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.

  • Technical specification
    3 pages
    English language
    sale 15% off
ASTM
ASTM D3656/D3656M-13(2021)(Specification)
Standard Specification for Insect Screening and Louver Cloth Woven fromVinyl-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.

  • Technical specification
    6 pages
    English language
    sale 15% off
ASTM
ASTM D7556-10(2019)(Test Method)
Standard Test Methods for Determining Small-Strain Tensile Properties of Geogrids and Geotextiles by In-Air Cyclic Tension Tests

SIGNIFICANCE AND USE
5.1 Test Methods A, B, and C provide a means of evaluating the tensile modulus of geogrids and geotextiles for applications involving small-strain cyclic loading. The test methods allow for the determination of cyclic tensile modulus at different levels of prescribed or permanent strain, thereby accounting for possible changes in cyclic tensile modulus with increasing permanent strain in the material. These test methods shall be used for research testing and to define properties for use in specific design methods.  
5.2 In cases of dispute arising from differences in reported test results when using these test methods for acceptance testing of commercial shipments, the purchaser and supplier should conduct comparative tests to determine if there is a statistical bias between their laboratories. Competent statistical assistance is recommended for the investigation of bias. As a minimum, the two parties should take a group of test specimens which are as homogeneous as possible and which are from a lot of material of the type in question. The test specimens should then be randomly assigned in equal numbers to each laboratory for testing. The average results from the two laboratories should be compared using Student’s t-test for unpaired data and an acceptable probability level chosen by the two parties before the testing began. If a bias is found, either its cause shall be found and corrected or the purchaser and supplier shall agree to interpret future test results in light of the known bias.  
5.3 All geogrids can be tested by Test Method A or B. Some modification of techniques may be necessary for a given geogrid depending upon its physical makeup. Special adaptations may be necessary with strong geogrids, multiple-layered geogrids, or geogrids that tend to slip in the clamps or those which tend to be damaged by the clamps.  
5.4 Most geotextiles can be tested by Test Method C. Some modification of clamping techniques may be necessary for a given geotextile depen...
SCOPE
1.1 These test methods cover the determination of small-strain tensile properties of geogrids and geotextiles by subjecting wide-width specimens to cyclic tensile loading.  
1.2 These test methods (A, B, and C) allow for the determination of small-strain cyclic tensile modulus by the measurement of cyclic tensile load and elongation.  
1.3 This test method is intended to provide properties for design. The test method was developed for mechanistic-empirical pavement design methods requiring input of the reinforcement tensile modulus. The use of cyclic modulus from this test method for other applications involving cyclic loading should be evaluated on a case-by-case basis.  
1.4 Three test methods (A, B, and C) are provided to determine small-strain cyclic tensile modulus on geogrids and geotextiles.  
1.4.1 Test Method A—Testing a relatively wide specimen of geogrid in cyclic tension in kN/m (lbf/ft).  
1.4.2 Test Method B—Testing multiple layers of a relatively wide specimen of geogrid in cyclic tension in kN/m (lbf/ft).  
1.4.3 Test Method C—Testing a relatively wide specimen of geotextile in cyclic tension in kN/m (lbf/ft).  
1.5 The values stated in SI units are to be regarded as standard. The values given in parentheses are provided for information only and are not considered standard.  
1.6 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.  
1.7 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.

  • Standard
    6 pages
    English language
    sale 15% off
ASTM
ASTM D3690-19(Specification)
Standard Performance Specification for Vinyl-Coated and Urethane-Coated Upholstery Fabrics—Indoor

SIGNIFICANCE AND USE
4.1 Fabrics intended for this end-use should meet all the requirements listed in Table 1. (A) There is more than one standard test method that can be used to measure breaking strength, tongue tear strength, and lightfastness. These test methods cannot be used interchangeably since there may be no overall correlation between them (see Note 2).(B) grade in b and c is based on a numerical scale of 5 for negligible color transfer or color change to 1 for very severe color transfer or color change. The numerical rating in Table 1 or higher is acceptable.(C) AATCC 9–Step Chromatic Transference Scale.(D) AATCC Gray Scale for Color Change.  
4.2 It should be recognized that fabric can be produced utilizing an almost infinite number of combinations of construction variables (e.g., type of fibers, percentage of fibers, yarn twist, yarn number, warp and pick count, chemical and mechanical finished). Additionally, fashion and aesthetics dictate that the ultimate consumer may find acceptable articles made from fabrics that do not conform to all of the requirements in Table 1.  
4.2.1 Hence, no single performance specification can possibly apply to all the various fabrics that could be utilized for this end-use.  
4.3 The uses and significance of particular properties and test methods are discussed in the appropriate sections of the specified methods.
SCOPE
1.1 This performance specification covers performance requirements for vinyl-coated and urethane-coated upholstery fabrics produced with woven, knit, or nonwoven substrates which are used in the manufacture of new indoor furniture.  
1.2 This performance specification is not applicable to fabrics used in porch, deck, or lawn furniture; nor for plain knit fabrics and plain, tufted, or flocked, woven upholstery fabrics.  
1.3 These requirements apply to the length and width directions for those properties where fabric direction is pertinent.  
1.4 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.  
1.5 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
    4 pages
    English language
    sale 15% off
ASTM
ASTM D2724-19(Test Method)
Standard Test Method for Bond Strength of Bonded, Fused, and Laminated Apparel Fabrics

SIGNIFICANCE AND USE
5.1 This test method for the determination of bond strength of bonded, fused, or laminated apparel fabrics, is considered satisfactory for acceptance testing of commercial shipments of bonded and laminated apparel fabrics.  
5.1.1 If there are differences of practical significance between reported test results for two laboratories (or more), comparative tests should be performed to determine if there is a statistical bias between them, using competent statistical assistance. As a minimum, use the samples for such a comparative test that are as homogeneous as possible, drawn from the same lot of material as the samples that resulted in disparate results during initial testing. Randomly assign specimens in equal numbers to each laboratory. The test results from the laboratories involved should be compared using a statistical test for unpaired data and a probability level chosen prior to the testing series. If bias is found, either its cause must be found and corrected, or future test results for that material must be adjusted in consideration of the known bias.
SCOPE
1.1 This test method covers procedures for characterizing the bond strength of bonded, fused, and laminated apparel fabrics before or after drycleaning and laundering.  
1.2 The values stated in SI units are to be regarded as standard; the values in parentheses are provided as 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. See 6.1.1 for a specific warning.  
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.

  • Standard
    5 pages
    English language
    sale 15% off
  • Standard
    5 pages
    English language
    sale 15% off
ASTM
ASTM F2153-07(2018)(Test Method)
Standard Test Method for Measurement of Backpack Capacity

SIGNIFICANCE AND USE
4.1 Many consumers use the capacity measurement as a key specification to determine the backpack size suitable for their requirements.
SCOPE
1.1 This test method determines and standardizes an unextended and extended capacity for backpacks and related bags. Related bags include lumbar packs, soft rucksacks, internal and external frame packs, duffel bags, and travel packs.  
1.2 This test method is designed to provide a means whereby manufacturers and consumers may have a consistent means to compare pack volumes.  
1.3 This test method does not take into consideration areas of the backpack that are not completely enclosed by fabric such as mesh pockets, water bottle holders, and compressor pockets.  
1.4 For practical purposes this test method cannot be used to measure capacities less than 4 L.  
1.5 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.

  • Standard
    3 pages
    English language
    sale 15% off
ASTM
ASTM D4851-07(2019)e1(Test Method)
Standard Test Methods for Coated and Laminated Fabrics for Architectural Use

SIGNIFICANCE AND USE
5.1 The procedures in this standard can be used for acceptance testing of commercial shipments of coated and laminated fabrics for architectural use since these test methods have been used extensively in the trade for acceptance testing. Caution is advised, however, when testing adhesion of coating to fabric and breaking strength after crease fold because between laboratory precision is known to be poor (see 24.2). For these cases, comparative tests conducted, as directed in 5.1.1, may be advisable.  
5.1.1 In cases of a dispute arising from differences in reported test results when using Test Methods D4851 for acceptance testing of commercial shipments, the purchaser and the supplier should conduct comparative tests to determine if there is a statistical bias between their laboratories. Competent statistical assistance is recommended for the investigation of bias. As a minimum, the two parties should take a group of test specimens which are as homogeneous as possible and from a lot of material of the type in question. The test specimens should then be randomly assigned in equal numbers to each laboratory for testing. The average results from the two laboratories should be compared using appropriate statistical analysis for unpaired data and an acceptable probability level chosen by the two parties before the testing is begun. If a bias is found, either its cause must be found and corrected or the purchaser and the supplier must agree to interpret future test results with consideration of the known bias.  
5.2 The uses and significance of specific properties are discussed in the appropriate sections of specific test methods.
SCOPE
1.1 These test methods cover the testing of coated and laminated fabrics made primarily for use in fabric roof systems. These coated and laminated fabrics are generally in either an air supported or tension supported construction of fabric roof systems.  
1.2 These methods can be used for most fiber-based, coated and laminated architectural fabrics.  
1.3 This standard includes the following sections that provide test procedures for coated and laminated architectural fabrics:    
Section  
Fabric Count  
8  
Mass per Unit Area  
9  
Fabric Thickness  
10  
Fabric Width  
11  
Fabric Length  
12  
Fabric Bow  
13  
Adhesion of Coating to Fabric  
14  
Uniaxial Elongation Under Static Load  
15  
Fabric Breaking Force  
16  
Breaking Strength After Crease Fold  
17  
Elongation at Break  
18  
Fabric Trapezoid Tear Force  
19  
Resistance to Accelerated Weathering  
20  
Solar Optical Properties  
21  
Fabric Flame Resistance  
22  
Noise Reduction Coefficient  
23  
1.4 These test methods include only testing procedures and do not include specifications or tolerances. They are intended as a guide for specifications. Any of these methods may be used in material specifications to evaluate requirements for a specific end use as related to a particular job.  
1.5 The values stated in either SI or inch-pound units are to regarded separately as the standard. Within the text, the inch-pound units are shown in parentheses. The values stated in each system are not exact equivalents; therefore, each system shall be used independently of the other.  
1.6 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. Specific warning statements are given in 14.1, A1.3.3.1, A2.3.3.1, and A3.3.3.1.  
1.7 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 Bar...

  • Standard
    21 pages
    English language
    sale 15% off