BHMA A156-6:2010 pdf download.AMERICAN NATIONAL STANDARD FOR ARCHITECTURAL DOOR TRIM
1.SCOPE
1.1 This Standard contains requirements for door protection plates, door edgings, push plates, door pulls,push bars, and pull bars. Included are strength and finish tests, and dimensional and material criteria.
1.2 Tests described in this Standard are performed under laboratory conditions. In actual usage, results vary because of installation, maintenance and environmental conditions.
3.1 Reference to other Standards ANSI Standards referenced in this Standard are available from the Builders Hardware Manufacturers Association, www .buildershardware.com, or American National Standards Institute www.ansi.org.
3.2 Dimensions All dimensions are given in US units with approximate SI (metric) conversions. Where plus or minus tolerances are not given, values are permitted to be correspondingly reduced or exceeded at the option of the manufacturer within the functional limitations of the product.
3.3 W orkmanship Products meeting this Standard shall be free of imperfections and defects affecting appearance, durability and service.
3.4 Materials Materials to be used are listed in the product category description. Experience has shown these will provide a serviceable product. Where brass is mentioned, reference is to mean yellow brass, red brass or 90% commercial bronze. Metal used shall be determined by the finish specified for the product.
3.5 Finish Finishes shall conform to the finish test values in this Standard for all applicable products.Appearance and test procedures shall conform to ANSI/BHMA A 156.18-2006 for Materials and Finishes.All visible parts when the product is installed shall match subject to the limitations stated under the product category and to natural variations of those finishes falling into B or C categories. The finish of exposed screw and bolt heads shall be compatible with that of the product subject to these variations. Fasteners not exposed shall have a corrosion resistant finish.
3.6 Packaging All products together with necessary screws and other fasteners shall be wrapped or packaged individually unless otherwise specified by the manufacturer. The package shall be labeled or marked to clearly indicate contents.
3.7 Symbols The symbol CTC used throughout this Standard means center to center. All other symbols are defined as they are used.
4.3.4 Attachment screws shall be furnished with the plate. The standard screw is stainless steel no. 6 Phillips head, type AB tapping 5/8 in. (16 mm) minimum length with finish compatible with that of the plate.Screws furnished with plastic plates of a color other than black or chocolate brown have a natural stainless color. (See A- 1.1 and A- 1.2)
4.3.5 Polishing lines or dominant direction of any surface pattern shall run across the door (width of plate).Users of this Standard wishing wood grained plastic plates with grain running in the same direction as the grain in the door shall so specify.
4.3.6 Beveled edges are optional on metal plates and standard on other materials 1/8 in. (3.2 mm) thick or thicker. They shall be uniformly beveled leaving no sharp edges. Bevel the top and two sides of metal plates (symbol B3E) and all sides of other materials (symbol B4E). Edges on metal plates shall be deburred.BHMA A156-6 pdf download.