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In March 1993, the GSA outlined, in nine full pages of specifications and drawings, the precise dimensions, color, polish and markings required for simple glass ashtrays that would pass U.S. government standards. A Type I, glass, square, 41/2 inch (114.3 mm) ash receiver must include several features: "A minimum of four cigarette rests, spaced equidistant around the periphery and aimed at the center of the receiver, molded into the top. The cigarette rests shall be sloped toward the center of the ash receiver. The rests shall be parallel to the outside top edge of the receiver or in each corner, at the manufacturer's option. All surfaces shall be smooth." Government ashtrays must be sturdy too. To guard against the purchase of defective ash receivers, the GSA required that all ashtrays be tested. "The test shall be made by placing the specimen on its base upon a solid support (a 1 3/4 inch, 44.5mm maple plank), placing a steel center punch (point ground to a 60-degree included angle) in contact with the center of the inside surface of the bottom and striking with a hammer in successive blows of increasing severity until breakage occurs." Then, according to paragraph 4.5.2. "The specimen should break into a small number of irregular shaped pieces not greater in number than 35, and it must not dice." What does "dice" mean? The paragraph goes on to explain: "Any piece 1/4 inch (6.4 mm) or more on any three of its adjacent edges (excluding the thickness dimension) shall be included in the number counted. Smaller fragments shall not be counted."
Regulation AA-A-710E