SD-15 Guide For Performance SpecificationsThis document provides guidance information on performance specifications focusing primarily on stating requirements in performance terms and ensuring that sufficient verification means are included in the specification to evaluate conformance. While the focus of this document is on defense specifications developed under DoD 4120.24-M, Defense Standardization Program DSP Policies and Procedures, the principles and techniques can also be applied to program unique performance specifications, performance-based purchase descriptions, commercial item descriptions, or any other type of procurement specification. This guide is intended to supplement the format and content requirements for writing performance specifications found in MIL-STD-961, Defense and Program-Unique Specifications Format and Content.

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Performance Specification Guide SD-15

EXAMPLE 2 - COMPARISON OF SECTION 2, APPLICABLE DOCUMENTS

As illustrated in Example 1 above, detail specifications usually have more referenced documents than performance specifications because they specify the exact materials, parts, and processes. But this is not always the case. In this example, listed below are the references that were cited in a detail military specification MIL-H-370G, Hoses and Hose Assemblies, Nonmetallic: Elastomeric, Liquid Fuel, and after it was rewritten as a performance specification. The detail specification had 18 referenced documents primarily related to materials, connections (such as fittings and clamps), and test method standards. In this case, the rewritten performance specification, MIL-PRF-370H, has almost as many referenced documents. However, the types of referenced documents are different in the performance specification. The performance specification eliminated the detail material

specifications and it increased the number of test method standards to ensure compliance with the performance requirements. Both the detail military and revised performance specification can be viewed in their entirety on the ASSIST database at https://assist.daps.dla/quicksearch/.

REFERENCED DOCUMENTS FROM DETAIL MILITARY SPECIFICATION MIL-H-370G, HOSES AND HOSE ASSEMBLIES, NONMETALLIC: ELASTOMERIC, LIQUID FUEL

REFERENCED DOCUMENTS AFTER REWRITING THIS SPECIFICATION AS A PERFORMANCE SPECIFICATION MIL-PRF-370H, HOSES AND HOSE ASSEMBLIES, NONMETALLIC: ELASTOMERIC, LIQUID FUEL

SPECIFICATIONS

FEDERAL

WW-C-440 - Clamps, Hose, (Low-Pressure). MILITARY

MIL-H-775 - Hose and Assemblies; Rubber, Plastic, Fabric. Or Metal (Including Tubing); and Fittings, Nozzles, and Strainers, Packaging of.

MIL-C-27487 - Coupling Halves, Quick - Disconnect, Cam-Locking Type.

STANDARDS FEDERAL

FED-STD-H28 - Screw-Thread Standards for

Federal Services.

FED-STD-H28/10 - Screw-Thread Standards for Federal Services. (Section 10 American National Hose Coupling and Fire Hose

FEDERAL

COMMERCIAL ITEM DESCRIPTIONS A-A-59326 - Coupling Halves, Quick-

Disconnect Cam-Locking

A-A-59377 - Quick-disconnect, Sexless

Couplings

STANDARDS

FED-STD-595 - Colors used in Government

Procurement

AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM)

ASTM D 380 - Standard Test Methods for

Rubber Hose

ASTM D 381 - Standard Test Method for Existent Gum in Fuels by Jet Evaporation ASTM D 412 - Standard Test Methods for Vulcanized Rubber and Thermoplastic Rubbers and Thermoplastic Elastomers