Standard Test Methods for
Compounding Materials—Flame Atomic Absorption
Technique—Determination of Metals1

This standard is issued under the fixed designation D 4075; 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.

This standard has been approved for use by agencies of the Department of Defense.

1. Scope

1.1 These test methods cover the determination of metals in
rubber compounding materials by flame atomic absorption.

1.2 The test methods include the following materials:
Sections
Zinc oxide 11 to 20

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. For a specific
precautionary statement, see Note 1.

2. Referenced Documents

2.1 ASTM Standards:
D 4004 Test Methods for Rubber—Determination of Metal
Content by Flame Atomic Absorption (AAS) Analysis2
D 4483 Practice for Determining Precision for Test Method
Standards in the Rubber and Carbon Black Industries2
E 300 Practice for Sampling Industrial Chemicals3

2.2 Other Documents:

2.2.1 Literature pertinent to the particular atomic absorption
spectrophotometric equipment used for the analysis especially the manufacturer’s recommendations for optimum
performance. Standard texts on atomic absorption by
flame technique are also helpful.

3. Summary of Test Methods

3.1 The compounding material is suitably sampled, prepared according to the appropriate sections o

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