ASTM D6827-02

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Designation:D6827–02
Standard Test Method for
Zinc Analysis of Floor Polishes and Floor Polish Polymers
By Flame Atomic Absorption (A.A.)
This standard is issued under the fixed designation D 6827; 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 the following way, the analysis will be much more accurate
(testing total zinc instead of soluble zinc). The prep method
1.1 This laboratory test method covers the analysis of floor
will also lessen the chance of clogging the nebulizer of the
polishes and floor polish polymers for total zinc content.
atomic absorption unit with particulate matter.
1.2 This standard does not purport to address all of the
5.2 Prep Method:
safety concerns, if any, associated with its use. It is the
5.2.1 Important—All glassware used must be washed with
responsibility of the user of this standard to establish appro-
1:1 nitric acid solution and rinsed with deionized water to
priate safety and health practices and determine the applica-
eliminate contamination.
bility of regulatory limitations prior to use.
5.2.2 Weigh approximately 50 g of sample into a 100–mL
2. Significance and Use beaker. Record the exact weight to 0.001 g on the analysis
sheet.
2.1 This test method is generally accepted for the prepara-
5.2.3 Add approximately 5 mL of a 1:1 nitric acid solution
tion of floor polish and floor polish polymers for the analysis of
to the beaker. The amount need not be exact. Two disposable
total zinc content. Knowing the total zinc content of a floor
pipets worth should be adequate.
finish or polymer can aid in determining the proper disposal
5.2.4 Heatthesampletoboilinginahood.Allowthesample
method of used or unwanted product.
to boil until approximately 40 mL of sample remain.
3. Apparatus
5.2.5 Cool the sample and filter into a 100–mL volumetric
flask. Rinse the beaker and filter into the volumetric flask with
3.1 Analytical Balance, accurate to 0.001 g.
deionized water.
3.2 Hot Plate.
5.2.6 Bring the sample to volume with deionized water.
3.3 Ventilation Hood.
5.2.7 Analyze sample by flame A.A.
4. Reagents and Materials
5.3 Sample Analysis:
5.3.1 The samples should be analyzed using a flame atomic
4.1 100 mL Beaker.
absorption spectrometer. In absence of this piece of equipm
...