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ASTM D4706-93(1998)

(Test Method)

Standard Test Method for Qualitative Determination of Methylol Group in Phenolic Resins (Withdrawn 2007)

Standard Test Method for Qualitative Determination of Methylol Group in Phenolic Resins (Withdrawn 2007)

SCOPE
1.1 This test method covers a procedure to determine qualitatively the presence of methylol group in phenol-formaldehyde resins.  
1.2 This standard does not purport to address all of the safety problems, 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.
WITHDRAWN RATIONALE
This test method covers a procedure to determine qualitatively the presence of methylol group in phenol-formaldehyde resins.
Formerly under the jurisdiction of Committee D01 on Paint and Related Coatings, Materials, and Applications, this test method was withdrawn in March 2007 in accordance with section 10.5.3.1 of the Regulations Governing ASTM Technical Committees, which requires that standards shall be updated by the end of the eighth year since the last approval date.

General Information

Status
Withdrawn
Publication Date
31-Dec-1992
Withdrawal Date
20-Mar-2007
ICS
83.080.10 - Thermosetting materials
Technical Committee
D01 - Paint and Related Coatings, Materials, and Applications
Drafting Committee
D01.33 - Polymers and Resins
Current Stage
Ref Project

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ASTM D4706-93(1998) - Standard Test Method for Qualitative Determination of Methylol Group in Phenolic Resins (Withdrawn 2007)ASTM D4706-93(1998) - Standard Test Method for Qualitative Determination of Methylol Group in Phenolic Resins (Withdrawn 2007)
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ASTM D4706-93(1998) - Standard Test Method for Qualitative Determination of Methylol Group in Phenolic Resins (Withdrawn 2007)
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:D4706–93(Reapproved 1998)
Standard Test Method for
Qualitative Determination of Methylol Group in Phenolic
Resins
This standard is issued under the fixed designation D 4706; 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 4.3 Ferric chloride, 5 % aqueous solution.
4.4 Balance.
1.1 This test method covers a procedure to determine
qualitatively the presence of methylol group in phenol-
5. Procedure
formaldehyde resins.
5.1 Place 0.1 g of the specimen under test in a test tube.
1.2 This standard does not purport to address all of the
5.2 Add 10 mL of acetone.
safety concerns, if any, associated with its use. It is the
5.3 Shake and dissolve specimen.
responsibility of the user of this standard to establish appro-
5.4 Add two drops of 0.5 % ferric chloride solution and
priate safety and health practices and determine the applica-
swirl.
bility of regulatory limitations prior to use.
5.5 Observe color, yellow or blue.
2. Summary of Test Method
6. Report
2.1 This test method of qualitatively determining the pres-
6.1 Report the following information:
ence of methylol groups in a phenol resin uses the reaction of
6.1.1 Yellow equals methylol group absent.
ferric chloride with the methylol group to produce a blue color
6.1.2 Blue equals methylol group present.
at room temperature.
7. Precision and Bias
3. Significance and Use
7.1 Precision and bias do not apply since this is a qualitative
3.1 This test method provides a fast and simple method for
test method that is recorded by a color change.
determining the presence of methylol group for quality control
testing.
8. Keywords
8.1 fer
...

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