ASTM D494-11
Standard Test Method for Acetone Extraction of Phenolic Molded or Laminated Products
- Standard No.
- ASTM D494-11
- Release Date
- 2011
- Published By
- American Society for Testing and Materials (ASTM)
- Status
- Replace By
- ASTM D494-11(2019)
- Latest
- ASTM D494-11(2019)
- Scope
For molded phenolic products, acetone extraction shall be considered solely as a quantitative expression of a property normally associated with degree of cure. There is no demonstrably rigorous relation between the optimum mechanical and electrical properties of a well-cured piece and the numerical value of the acetone test. The amount of acetone-soluble matter is affected by: (1) nature of resin and filler, (2) lubricant, (3) molding temperature, (4) length of cure, (5) thickness of the section from which sample is taken, (6) nature of molded piece, (7) technique used in molding, (8) distribution of fines in the material to be extracted, and (9) method of grinding the specimen. These variations under some conditions will cause a difference of 3 to 4 % in acetone-extractable matter. For this reason, the test method shall be used only as a comparative test for measuring undercure.
For laminated phenolic products, acetone extraction indicates change in stage of cure, change in resin content, change in type of resin used, presence of plasticizers or other acetone-extractable addition agents, and is affected in general by the same factors as stated in 6.1
1.1 This test method covers the determination of the amount of acetone-soluble matter in molded or laminated phenolic products.
1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversions to inch-pound units that are provided for information only and are not considered standard.
1.3 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.
Note 18212;This test method is similar to ISO 308.
ASTM D494-11 Referenced Document
- ASTM D618 Standard Practice for Conditioning Plastics for Testing
- ASTM D883 Standard Terminology Relating to Plastics
- ASTM E11 Standard Specification for Wire Cloth and Sieves for Testing Purposes
- ASTM E691 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
- ISO 308 Plastics - Phenolic moulding materials - Determination of acetone-soluble matter (apparent resin content of material in the unmoulded state)
ASTM D494-11 history
- 2019 ASTM D494-11(2019) Standard Test Method for Acetone Extraction of Phenolic Molded or Laminated Products
- 2011 ASTM D494-11 Standard Test Method for Acetone Extraction of Phenolic Molded or Laminated Products
- 2004 ASTM D494-04(2010)e1 Standard Test Method for Acetone Extraction of Phenolic Molded or Laminated Products
- 2004 ASTM D494-04 Standard Test Method for Acetone Extraction of Phenolic Molded or Laminated Products
- 1991 ASTM D494-91 Test Method for Acetone Extraction of Phenolic Molded or Laminated Products
