ASTM D4963-99

Standard Test Method for Ignition Loss of Glass Strands and Fabrics

SCOPE
1.1 This test method covers primarily the determination of ignition loss of glass textiles produced from E and S classification glass fiber. This method applies to glass fiber strands, twisted or untwisted, coated or uncoated; and fabrics, woven, nonwoven, knitted, coated, and uncoated. This procedure may be applied to other glass textiles where the amount of organic content obtained by ignition loss is required.  Note 1-This test method may be used with other glass fiber classifications, such as C or D, but a different ignition temperature and exposure time may be required. In these cases the manufacturer should be consulted for the appropriate ignition conditions.
1.2 This test method shows the values in both SI units and inch-pound units. "SI units" is the technically correct name for a system of metric units known as the International System of Units. "Inch-pound units" is the technically correct name for the customary units used in the United States. The values stated in inch-pound units are to be regarded as the standard. The values in SI units are provided 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 and health practices and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 09-Apr-1999
• ICS: 59.100.10 - Textile glass materials
• Technical Committee: D13 - Textiles
• Drafting Committee: D13.18 - Glass Fiber and its Products

Relations

• Replaced By: ASTM D4963-04 - Standard Test Method for Ignition Loss of Glass Strands and Fabrics
• Effective Date: 01-Dec-2004
• Referred By: ASTM D579/D579M-15 - Standard Specification for Greige Woven Glass Fabrics
• Effective Date: 10-Apr-1999
• Referred By: ASTM D580/D580M-15 - Standard Specification for Greige Woven Glass Tapes and Webbings
• Effective Date: 10-Apr-1999

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:D4963–99
Standard Test Method for
Ignition Loss of Glass Strands and Fabrics
This standard is issued under the fixed designation D 4963; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope 4. Summary of Test Method
1.1 This test method covers primarily the determination of 4.1 The organic content on glass textiles is determined by
ignition loss of glass textiles produced from E and S classifi- weighing the specimen before and after ignition. The amount
cation glass fiber. This method applies to glass fiber strands, of ignition loss on a sample is reported as a percentage of the
twisted or untwisted, coated or uncoated; and fabrics, woven, mass before ignition.
nonwoven, knitted, coated, and uncoated. This procedure may
5. Significance and Use
be applied to other glass textiles where the amount of organic
content obtained by ignition loss is required. 5.1 This test method is considered satisfactory for accep-
tance testing of commercial shipments because current esti-
NOTE 1—This test method may be used with other glass fiber classifi-
mates of between-laboratory precision are acceptable.
cations, such as C or D, but a different ignition temperature and exposure
5.1.1 In cases of a dispute arising from differences in
time may be required. In these cases the manufacturer should be consulted
reported test results when using this test method for acceptance
for the appropriate ignition conditions.
testing of commercial shipments, the purchaser and the sup-
1.2 The values stated in either SI units or inch-pound units
plier should conduct comparative tests to determine if there is
are to be regarded separately as standard. The values stated in
a statistical bias between their laboratories. Competent statis-
each system may not be exact equivalents; therefore, each
tical assistance is recommended for the investigation of bias.
system shall be used independently of the other. Combining
As a minimum, the two parties should take a group of test
values from the two systems may result in nonconformance
specimens which are as homogeneous as possible and which
with the standard.
are from a lot of material of the type in question. The test
1.3 This standard does not purport to address all of the
specimens should then be randomly assigned in equal numbers
safety concerns, if any, associated with its use. It is the
to each laboratory for testing.The average results from the two
responsibility of the user of this standard to establish appro-
laboratories should be compared using Student’s t-test for
priate safety and health practices and determine the applica-
unpaireddataandanacceptableprobabilitylevelchosenbythe
bility of regulatory limitations prior to use.
two parties before the testing begins. If a bias is found, either
its cause must be found and corrected or the purchaser and the
2. Referenced Documents
suppliermustagreetointerpretfuturetestresultsintheviewof
2.1 ASTM Standards:
2 the known bias.
D 123 Terminology Relating to Textiles
5.2 Glass textiles are provided with various sizings or
D 578 Specification for Glass Fiber Strands
2 coatings. These provide a protection for the individual fibers,
D 1776 Practice for Conditioning Textiles for Testing
yarns, or fabric that may compose the glass textile as well as
3. Terminology compatibility with further finishing requirements. The amount
of sizing or coating on glass textiles as determined by this
3.1 Definitions:
procedure is used for process control.
3.1.1 ignition loss, n— in glass textiles, the amount of
organic material consumed by ignition.
6. Apparatus and Materials
3.1.2 For definitions of other textile terms used in this test
6.1 Reel—A hand- or motor-driven reel having at least a
method, refer to Terminology D 123. For information on the
1-m (1-yd) perimeter. The reel shall be fitted with a traversing
designation of construction of glass strands, refer to Specifi-
mechanism that will avoid bunching the successive wraps, and
cation D 578.
with an indicator of the length wound.Awarning bell that will
ring at a specified length is recommended. It is advisable that
ThistestmethodisunderthejurisdictionofASTMCommitteeD-13onTextiles
onearmwillbecollapsibletoallowforeasyremovalofskeins.
and is the direct responsibility of Subcommittee D13.18 on Glass Fiber and Its
6.2 Muffle Furnace, capable of maintaining 625 6 25°C
Products.
(1157 6 45°F).
Current edition approved April 10, 1999. Published August 1999. Originally
published as D 4963 – 89. Last previous edition D 4963 – 94.
Annual Book of ASTM Standards, Vol 07.01.
Copyright ©ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA19428-2959, United States.
D4963–99
6.3 Air Circulating Drying Oven, capable of maintaining a test specimens from the drying oven and cool in the desiccator
temperature of 105 6 2°C (220 6 4°F). for 30 min in the standard atmosphere for testing glass textiles.
6.4 Thermometer, or Thermcouple, for muffle furnace ca- 9.2 Place the empty containers in the muffle furnace at 625
pable of registering 625°C with 25°C maximum increments 6 25°C (1157 6 45°F). After 30 min, remove and cool in the
(1157°F with 45°F maximum increments). standard atmosphere for testing glass textiles for 30 minutes.
6.5 Analytical Balance, 200-g capacity, readable to 0.001 g. 9.3 Weigh the empty container to the nearest 0.001 g.
6.6 Weighing Containers. Record this as the tare mass, T.
6.7 Hood, suitable for removing combustion products. 9.4 Identify each container with respect to each test speci-
6.8 Desiccator, of sufficient size to hold the weighing men.
containers and an efficient desiccant.
NOTE 2—When it is known that no ash residue separates from the
6.9 Tongs, long handle, heat-resistant.
specimen during the weighing and igniting process, the specimen may be
6.10 Gloves, heat-resistant.
weighedseparatelywithoutthecontainer.Whenthisoccurs, Tequalszero.
9.5 Placethetestspecimeninthecontainerandweightothe
7. Safety Hazards
nearest 0.001 g. Record this as the initial mass, A.
7.1 Precautions—Avoid contact with the hot muffle fur-
9.6 With the test specimen in the container, place in the
nace. Use tongs to remove samples. Prescribed safety gloves
mufflefurnace.Igniteat625 625°C(1157 645°F)foratleast
should be worn when performing high-temperature (over 45°C
30 min.
or 100°F) testing. Place hazard warning safety signs in a
9.7 Remove the container with specimen residue from the
conspicuous place. The muffle furnace must be located under a
muffle furnace and cool in the desiccator for at least 30 min in
hood suitable for removing combustion products.
the standard atmosphere for testing glass textiles.
9.8 Remove each container and test specimen separately
8. Sampling and Number of Specimens
from the desiccator, and immediately weigh to the nearest
8.1 Lot Size—A lot is defined as a single shipment of a 0.001 g. Record this as the ignited mass, B.
single type of glass textile.Alot may constitute all or part of a
10. Calculation
single customer order.
8.2 Lot Sample—As a lot sample for acceptance testing,
10.1 Calculatetheignitionlossoftheglasstextileinpercent
take the number of sampl
...