Abstract

This specification describes the manufacturing requirements for spray shield stock and the fabrication and installation requirements for spray shields made from that stock. The physical and mechanical properties for the aluminized glass cloth, thread, and protective outer jacket shall be as specified. If lacing hooks or rings are of the type that fastens by stitching, the hooks or rings shall be attached to the backup washers using a wire stitch machine and wire. The methods for testing the aluminized glass cloth, thread, and protective outer jacket shall be as specified.

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. Scope

1.1 This specification describes the manufacturing requirements for spray shield stock and the fabrication and installation requirements for spray shields made from that stock.

1.1.1 Sections 2-14 address the manufacturing requirements for the spray shield stock. Annex A1 addresses the fabrication and installation requirements for the spray shields.

1.1.2 Fig. 1 shows the typical construction of a spray shield. Figs. 2-6 show methods of installation of a spray shield on various mechanical joints.

1.2 The shields are intended for use around mechanical joints (flanged, bolted unions, and so forth) in liquid piping systems to prevent the impingement of flammable liquid on hot surfaces or fluids onto electrical switchboards and components resulting from a leak in the mechanical joint.

1.3 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.

2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

A176 Specification for Stainless and Heat-Resisting Chromium Steel Plate, Sheet, and Strip

A276 Specification for Stainless Steel Bars and Shapes

A580/A580M Specification for Stainless Steel Wire

B134/B134M Specification for Brass Wire

B164 Specification for Nickel-Copper Alloy Rod, Bar, and Wire

B166 Specification for Nickel-Chromium-Iron Alloys (UNS N06600, N06601, N06603, N06690, N06693, N06025, N06045, and N06696), Nickel-Chromium-Cobalt-Molybdenum Alloy (UNS N06617), and Nickel-Iron-Chromium-Tungsten Alloy (UNS N06674) Rod, Bar, and Wire

D1308 Test Method for Effect of Household Chemicals on Clear and Pigmented Organic Finishes

D1424 Test Method for Tearing Strength of Fabrics by Falling-Pendulum (Elmendorf-Type) Apparatus

D1682 Test Method for Breaking Load and Elongation of Textile Fabric

D1777 Test Method for Thickness of Textile Materials

D3389 Test Method for Coated Fabrics Abrasion Resistance (Rotary Platform Abrader)

D3776 Test Methods for Mass Per Unit Area (Weight) of Fabric

D3786 Test Method for Bursting Strength of Textile Fabrics--Diaphragm Bursting Strength Tester Method

D3951 Practice for Commercial Packaging

F501 Test Method for Aerospace Materials Response to Flame, with Vertical Test Specimen (for Aerospace Vehicles Standard Conditions)

American Association of Textile Chemists and Colorists Standards

Keywords

lacing; mechanical joints; shield; spray shield; Fabricated materials--specifications; Mechanical joints; Shipbuilding materials (general)--specifications; Spray applications/testing;

ICS Code

ICS Number Code 47.020.05 (Materials and components for shipbuilding)

DOI: 10.1520/F1138-98R07

ASTM International is a member of CrossRef.

ASTM F1138