California Code of Regulations
Title 14 - Natural Resources
Division 2 - Department of Conservation
Chapter 5 - Division of Recycling
Subchapter 1 - Definitions
Appendix A - Designation: E 708-79 Standard Specification for Waste Glass as a Raw Material for the Manufacture of Glass Containers

Current through Register 2024 Notice Reg. No. 38, September 20, 2024

Appendix A Designation: E 708-79 Standard Specification for Waste Glass As a Raw Material for the Manufacture of Glass Containers1

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.

1. Scope

1.1 This specification covers particulate glass (cullet material, recovered from waste destined for disposal, smaller than 6 mm intended for reuse as a raw material in the manufacture of glass containers.

2. Applicable Documents

2.1 ASTM Standards.

C 162 Definitions of Terms Relating to Glass and Glass Products2

C 169 Chemical Analysis of Soda-Lime and Borosilicate Glass2

C 429 Sieve Analysis of Raw Materials for Glass Manufacture2

E 688 Testing Waste Glass as a Raw Material for Manufacture of Glass Containers3

3. Definitions

3.1 first glass cullet -- a particulate glass material that contains no more than 0.1 weight % Fe2O3 or 0.0015 weight % Cr2O3, as determined by chemical analysis.

3.2 For definitions of other terms used in this specification, refer to Definitions C 162.

4. Representative Sample

4.1 The following requirements qualify the glass lot to be used for direct use in soda-lime glass container manufacturing. Sample should be prepared and examined in accordance with Methods E 688.

NOTE 1--A preponderant proportion of glass cullet will be soda-lime bottle glass, the glass cullet having a composition as follows, as determined by Method C 169.

NOTE 2--All percents referred to in this specification are weight percents.

5. General Requirements.

5.1 The sample shall show no drainage of liquid and be noncaking and free flowing. A moisture content of less than 0.5 weight % is required to meet the free-flowing characteristics of a cullet that is predominantly of smaller particle size, 1.18-mm (No. 16) sieve or smaller.

5.2 Screen Size -- No material shall be retained on a 6-mm ( 1/4 -in.) screen. Material not exceeding 15 weight % shall pass through a 106-[MICRO]m (No. 140) screen.

5.3 Organic Materials-- The total content of organic materials, as measured in accordance with Section 6 shall not exceed 0.2 weight % of dry sample, except for color-mixed glass where the content of organic material may exceed 0.2 weight %. However, a content of organic material greater than 0.2 weight % must be held within a tolerance of ±0.05 weight %, with a maximum organic limit of 0.4 weight %.

5.4 Magnetic Materials--The total magnetic materials shall not exceed 0.05 weight % of dry sample weight for flint glass and 0.14 weight % for colored glass of dry sample weight in accordance with Section 6.

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1 This specification is under the jurisdiction of ASTM Committee E-38 on Resource Recovery and is the direct responsibility of Subcommittee E38.05 on Glass.

Current edition approved Nov. 30, 1979. Published February 1980.

2 Annual Book of ASTM Standards, Part 17.

3 Annual Book of ASTM Standards, Part 41.

5.5 Permissible Color Mix for Color Sorted Glass Cullet by Weight:

5.5.1 Amber Glass Cullet:

5.5.2 Green Glass Cullet:

5.5.3 Flint Glass Cullet:

5.5.3.1 Percents above 0.1 weight % of Fe2O3 or 0.0015 weight % of Cr7O3, or both, as determined by chemical analysis shall be considered mixed color glass. These limits are consistent with industry experience on raw material.

5.5.3.2 Flint glass cullet may contain up to 1 weight % emerald green or 10 weight % Georgia green, or a combination within the limits: 1 % Georgia green = 0.1 % emerald green.

5.6 Other Inorganic Material (such as non-magnetic metals or refractories)--As measured, material larger than 850-[MICRO]m (No. 20) screen size shall not exceed 0.1 % of the dry sample weight. Material smaller than 850-[MICRO]m screen size shall not exceed 0.5 % of the dry sample weight.

5.6.1 Refractories--Based upon U.S. series screen size and sample weight, the following refractory particle limits shall apply for each screen fraction as stated below.

5.6.2 Nonmagnetic Metals:

Upon failure to meet the previously stated specification limits, retesting is permissible.

6. Sampling and Testing

6.1 Sampling and testing shall be in accordance with Methods E 688.

The American Society for Testing and Materials takes no position respecting the validity of any patent rights assured in connection with any item mentioned in this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility.

This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years and if not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM Headquarters. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards 1916 Race St., Philadelphia, Pa. 19103, which will schedule a further hearing regarding your comments. Failing satisfaction there, you may appeal to the ASTM Board of Directors.