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This specification covers the requirements for sacrificial anodes of zinc alloy in the form of slabs, plates, discs, and rods for corrosion protection (cathodic protection) of metals and alloys. These anodes are primarily intended to reduce corrosion of surface ship and submarine hulls, steel and aluminum equipment and structures, sea chests, sonar domes, and the seawater side of condensers and other heat exchangers. The anodes are available either as cast-in cores (Class 1) or plain with no cores (Class 2). Class 1 anodes shall be of the following types: Type ZHS—hull slabs with steel straps; Type ZHB—hull slabs with brass straps; Type ZHC—hull slabs with core straps; Type ZSS—submarine slabs with steel straps; Type ZTS—teardrop shapes with steel straps; Type ZEP—heat exchanger or fair water discs (pipe core or pipe bushing core) that are in the form of square slabs (Style A), circular slabs (Style B), and semicircular slabs (Style C); Type ZBP—bars with pipe cores; and Type ZDM—segmented discs with machine formed interlocking cores. Conversely, Class 2 anodes shall be of the following types: Type ZRN—extruded, drawn or rolled rods; and Type ZPN—rolled plates. Anodes shall conform to material and manufacture, chemical composition, mechanical property, and dimensional requirements specified uniquely for each type.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
1.1 This specification covers the requirements for zinc anodes in the form of slabs, plates, discs, and rods for corrosion protection (cathodic protection) of metals and alloys.
1.2 The anodes are primarily intended to reduce corrosion of surface ship and submarine hulls, steel and aluminum equipment and structures, sea chests, sonar domes, and the seawater side of condensers and other heat exchangers.
1.3 The values stated in inch-pound units are to be regarded as standard. The metric (SI) units, given in parentheses, are for information purposes only and may be approximate.
1.4 This standard does not purport to address the safety concerns associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
American National Standards Institute StandardsANSI/ASMEB1.20.1 Pipe Threads, General Purpose (Inch) ANSI/ASQZ1.4 Sampling Procedures and Tables for Inspection by Attributes
Military StandardsMIL-STD-1186 Cushioning, Anchoring, Bracing, Blocking, and Waterproofing; With Appropriate Test Methods MIL-STD-129 Marking for Shipment and Storage
Military SpecificationMIL-P-15011 Pallets Material Handling, Wood Post Construction, 4-Way Entry
Federal SpecificationsPPP-B-601 Boxes, Wood, Cleated Plywood PPP-B-621 Boxes, Wood, Nailed and Lock-Corner PPP-B-636 Boxes, Shipping, Fiberboard
A36/A36M Specification for Carbon Structural Steel
B21/B21M Specification for Naval Brass Rod, Bar, and Shapes
B103/B103M Specification for Phosphor Bronze Plate, Sheet, Strip, and Rolled Bar
D3951 Practice for Commercial Packaging
E290 Test Methods for Bend Testing of Material for Ductility
E536 Test Methods for Chemical Analysis of Zinc and Zinc Alloys
ICS Number Code 77.150.60 (Lead, zinc and tin products)
UNSPSC Code 11101711(Non ferrous alloy)