ASTM D2660-84

Test Method for Finish Content of Woven Glass Fabric, Cleaned and After-Finished with Acrylic-Silane-Type Finishes, for Plastic Laminates (Withdrawn 1988)

General Information

• Status: Withdrawn
• Withdrawal Date: 24-Nov-1988
• ICS: 71.040.40 - Chemical analysis
• Technical Committee: D20 - Plastics
• Drafting Committee: D20.18 - Reinforced Thermosetting Plastics

Standards Content (Sample)

ASTM D2660 84 0759530 0026547 O ' \
Designation: D 2660 - 84
4Tb
AMERICAN SOCIETY FOR TESTING AND MATERIALS
1916 Rsce St., Philadelphia, Pa. 19103
from the Annual Book of ASTM Standards, Copyright ASTM
Reprinted
If not listed in the current combined index, will appear in the next edition.
Standard Test Method for
FINISH CONTENT OF WOVEN GLASS FABRIC, CLEANED
AND AFTER-FINISHED WITH ACRY LIC-SILANE-TY PE
FINISHES, FOR PLASTIC LAMINATES'
This standard is issued under the fixed designation D 2660, the number immediately following the designation indicates the year of
original adoption or, in the ose 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.
I. scope acceleratoys in the presence of oxygen. The car-
bon cQntent is measured, which is a reliable
1.1 This test method covers the measuremenf
indication of the amount of acrylic-silane finish
of the amount of acrylic-silane finish applied to
on the glass fabric.
various styles of woven giass fabric that have
been suitably cleaned to remove the oils and
4. Significance and Use
binders present on the yarn to make them suita-
4.1 The purpose of this test method is to pro-
ble for use in polyester laminates.
vide a means for determining the amount of
NOTE 1-Some typical acrylic-silane finishes are
acrylic-silane finish on glass fabrics that have met
known as 26030 and A-114.
NOTE 2-This test method is based on the use of a the requirements of Specification D4029 and
LeCo No. 515 Conductometric Carbon Determinator
whether it has been correctly applied. It is in-
and LRCO Induction Furnace, Laboratory Equipment
tended for use in specifications, product evalua-
Co., St. Joseph, Mich., but any test method giving
tion, and quality control.
comparable results may be used.
NOTE 3-The finish content may also be deter-
4.2 The acrylic-süane finish enhances the
mined using automatic instruments not on the market
handleability of the fabric and improves the
when this test method was originally written. The re-
mechanical properties of the glass fabric when
sults obtained by these instruments comply with the
used as a reinforcement in polyester laminates.
requirements of this test method, although the proce-
dure may differ.
5. Apparatus
1.2 This standard may involve hazardous ma-
5.1 Induction Furnace, LeCo Model 521,522,
terials, operations, and equipment. This standard
or $23.
. does not purport to address all of the safety prob-
9.2 Conductometric Carbon Determinator,
lems associated with its irse. It is the responsibil-
LeCo No. 515.
ity of whoever uses this standard to consult and
5.3 Combustion Tube, LeCo Mo. 550-120.
establish appropriate safity and health practices
5.4 Carbon Crucible, Quartz-Enclosed, LeCo
and determine the applicability of regulatory limi-
NO. 550- 182.
tations prior to use.
5.5 Tin Accelerator, Lec0 No. 501-76.
2. Applicable Document
2.1 ASTM Standard:
'This test method is under the jurisdiction of ASTM Com-
D 4029 Specification for Finished Woven
and is the direct responsibility of Sub-
mitfee D-20 on Plastics
Glass Fabrics2
commiftee D 20. I8 on Reinforced Thennosetting Plastics.
Current edition approved Feb. 24, 1984. Published June
1984. Onghally published as D 2660 - 67 T. Last previous edi-
3. Summary of Method
tion D 2660 - 82.
3.1 Specimens are burned with iron and tin
Annital Book ofASTM Siandards, Vol 07.02.

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ASTM D2bb0 84 S 0759530 002b548 2 W
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5.6 Iron Accelerator, LeCo No. 501-77. 7.5 Continue the oxygen purge for an addi-
5.7 Crucibles, LeCo No. 528-25. These cru- tional 2 min and record the resistance of the
Ba(OH)2 solution. Use this resistance for the
cibles are to be preignited at 1205OC (2200OF)
first point in preparing a standard curve.
in a tube furnace through which a stream of
7.6 Run a duplicate blank. Results should
oxygen is flowing. After burning, the crucibles
agree within 0.5 52.
must be handled with tongs to prevent contam-
7.7 Obtain three additional points for the
ination with oil from the skin; the crucibles
standard curve by burning iron and tin accel-
shall then be stored in a desiccator.
erators mixed with 0.2, 0.4, and 0.7 g of NBS
5.8 Tube Furnace.
standard steel 166A, following exactly the pro-
5.9 Variable Transformer.
cedure used in 7.4 and 7.5. NBS standard steel
5.10 Caution-Before attempting this deter-
166A contains 0.027 % carbon. Plot the resist-
mination, the analyst must be thoroughly fa-
miliar with the “Instruction Manual fÓr Oper- ance of the Ba(OH)2 solution in ohms versus
milligrams of carbon.
ation of LeCo No. 515 Conductometric Carbon
7.8 Using only tweezers to handle the glass
Determinator” and the “Instruction Manual
for Operation of LeCo Induction Furnace.” cloth, cut the sample in
...