ASTM E708-79(1999)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: E 708 – 79 (Reapproved 1999)
Standard Specification for
Waste Glass as a Raw Material for the Manufacture of Glass
Containers
This standard is issued under the fixed designation E 708; 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
Oxide Composition, Weight %
SiO 66 to 75
1.1 This specification covers particulate glass (cullet mate-
Al O 1to7
2 3
rial, recovered from waste destined for disposal, smaller than 6 CaO + MgO 9 to 13
NaO 12to16
mm intended for reuse as a raw material in the manufacture of
glass containers.
NOTE 2—All percents referred to in this specification are weight
1.2 The values stated in SI units are to be regarded as the percents.
standard. The values given in parentheses are for information
5. General Requirements
only.
5.1 The sample shall show no drainage of liquid and be
2. Referenced Documents
noncaking and free flowing.Amoisture content of less than 0.5
weight % is required to meet the free-flowing characteristics of
2.1 ASTM Standards:
C 162 Terminology of Glass and Glass Products a cullet that is predominantly of smaller particle size, 1.18-mm
(No 16) sieve or smaller.
C 169 Test Methods for Chemical Analysis of Soda-Lime
5.2 Screen Size—No material shall be retained on a 6-mm
and Borosilicate Glass
( ⁄4-in.) screen. Material not exceeding 15 weight % shall pass
C 429 Test Method for SieveAnalysis of Raw Materials for
through a 106-µm (No. 140) screen.
Glass Manufacture
5.3 Organic Materials—The total content of organic mate-
E 688 Test Methods for Waste Glass as a Raw Material for
rials, as measured in accordance with Section 6 shall not
Glass Manufacturing
exceed 0.2 weight % of dry sample, except for color-mixed
3. Terminology
glass where the content of organic material may exceed 0.2
3.1 Definitions: weight %. However, a content of organic material greater than
0.2 weight % must be held within a tolerance of 60.05
3.1.1 flint glass cullet—a particulate glass material that
contains no more than 0.1 weight % Fe O , or 0.0015 weight %, with a maximum organic limit of 0.4 weight %.
2 3
5.4 Magnetic Materials—The total magnetic materials shall
weight % Cr O , as determined by chemical analysis.
2 3
3.1.2 For definitions of other terms used in this specifica- not exceed 0.05 weight % of dry sample weight for flint glass
and 0.14 weight % for colored glass of dry sample weight in
tion, refer to Terminology C 162.
accordance with Section 6.
4. Representative Sample
5.5 Permissible Color Mix for Color Sorted Glass Cullet by
4.1 The following requirements qualify the glass lot to be Weight:
used for direct use in soda-lime glass container manufacturing. 5.5.1 Amber Glass Cullet:
Sample should be prepared and examined in accordance with
Test Methods E 688.
90 to 100 % amber
0to10%flint
NOTE 1—A preponderant proportion of glass cullet will be soda-lime
0 to 10 % green
bottle glass, the glass cullet having a composition as follows, as
0 to 5 % other colors
determined by Test Methods C 169.
5.5.2 Green Glass Cullet:
50 to 100 % green
This spe
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