UU-F-1206C
continuous, flexible, tough, and hard. The coating shall show no evidence of cracking, peeling, splitting, lack of adhesion, or exposure of metal; shall be free of tackiness, shall show no chipping or flaking, and shall resist indentation or removal when test in accordance with 4.4.6. The metal tabs shall be attached to the folder by a minimum of three eyelets. Self-eyelet type attachment is acceptable, provided the attachment does not have rough edges or projections interfering with user’s safety, or the protection of the paper enclosed in the file folder.
3.4.1.3.1 Angular Metal Tabs (Styles 1, 2, and 5). A metal tab finished as in 3.4.1.3 in the shape of a rectangular projection top with a triangular attachment base shall have an overall height of not less than
2 inches with a projections height of not more than 5/8 inch. It shall contain a front window opening a minimum of 3/8 inches less than the length of the tab. For 1/3 cut angular metal tabs, the window opening shall be 3/8 inch minimum height by 3-1/2 inches minimum length. For the 1/5 cut angular metal tabs, the window opening shall be 3/8 minimum in height and 1-3/4 inches minimum in length. Both the 1/3 cut and the 1/5 cut angular metal tabs shall be constructed so that an insert will be held firmly in place but can be removed. The back of the tab shall be slotted to facilitate insertion and removal of inserts. The tabs shall be furnished with a transparent, clear, colorless cellulose acetate or other suitable material as a window cover. The angular metal tab shall be fastened by eyelets (for self- eyelet attachments, see 3.4.1.3) in the triangular base to the back leaf long dimension.
3.4.1.3.2 Rectangular Metal Tab. The rectangular metal tab shall have equi-dimension openings for front and back windows in shelf folders so the label paper insert can be read from either side; and, front window opening, for drawer folders. The bottom of the tab shall be closed. The overall length shall not be less than 3-7/8 inches with a projection height of not more then 5/8 inch. The overall length shall be not less than 3/8 inch greater than the length of the window openings. For the 1/3 cut rectangular metal tabs, the window opening shall have a minimum height of 3/8 inch and minimum length of 3-1/2 inches. For 1/5 cut rectangular metal tabs, the window opening shall be 3/8 inch minimum in height, and 1-3/4 inches minimum in length. The tab shall be furnished with transparent window covers of equi-dimension for the front and back windows. Rectangular metal tabs shall be fastened by eyelets (for self-eyelet type attachment, see 3.4.1.3) to the back leaf, short dimension for styles 3 & 4 or, long dimension for styles 1
& 2.
3.4.1.4 Inserts. A sufficient number (equal to folders in box, or, up to 33 percent coverage) of blank
white paper inserts for metal or plastic tabs, as specified (see 6.2), shall be furnished in perforated strips so they can be inserted through a typewriter and then readily detached from the strip. These inserts shall be the width of the tab for which they were designed, plus 1/16 or minus 1/8 inch. If preprinted paper inserts are specified (see 6.2) they shall be banded and attached with the blank white inserts to the top folder of each box. Inserts shall fit in the tabs that they are designed for, without the use of tape or excessive bowing (see 4.4.7). Excessive bowing is defined as that which makes legibility difficult.
3.5 Fasteners. Unless otherwise specified (see 6.2), each class 1 folder shall be provided with two-prong type fastener, without compressor. The fastener shall comply with one of the following methods:
3.5.1.1) The fastener shall be fabricated from steel. The fastener shall be specified (see 6.2) as either 5-3/4 ± 1/8 (one inch capacity) or 7-3/4 inch ± 1/8 (two inch capacity) inches in total
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