QQ-P-35C

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QQ-P-35C

October 28, 1988

SUPERSEDING

Fed. Spec. QQ-P-35B

April 5, 1973

FEDERAL SPECIFICATION

PASSIVATION TREATMENTS FOR CORROSION-RESISTANT STEEL

This specification was approved by the Assistant Administrator Office of Federal

Supply and Services, General Services Administration, for the use of all Federal

Agencies.

1. SCOPE AND CLASSIFICATION

1.1 Scope. This specification covers the different types of passivation

treatments as well as recommendations, guidance and precautions for cleaning

and descaling corrosion-resistant parts, components, equipment and systems.

1.2 Purpose. This specification covers the method for cleaning and descaling

of stainless steel parts and outlines the final cleaning stage or passivation

treatments for use on austenitic, ferritic, martensitic and precipitation

hardening corrosion resistant steels. Engineering drawings and specifications

should specify classification type (passivation treatment) which should De used

in accordance with 1.2.1.

1.2.1 Types.

II - Medium temperature nitric acid solution with sodium dichromate additive

VI - Low temperature nitric acid solution

VII - Medium temperature nitric acid solution

VIII - Medium temperature high concentration nitric acid solution

2. APPLICABLE SPECIFICATIONS AND STANDARDS

2.1 Government documents.

2.1.1 Specifications, standards and handbooks. The following specifications,

standards and handbooks form a part of this document to the extent specified

herein. Unless otherwise specified, the issues of these documents are those

listed in the issue of the Department of Defense Index of Specifications and

Standards (DoDISS) and supplement thereto, cited in the solicitation.

AREA MFFP

DISTRIBUTION STATEMENT A. Approved for public release; distribution unlimited.

FEDERAL SPECIFICATIONS

O-N-350 - Nitric Acid, Technical

FEDERAL STANDARDS

FED-STD-313 - Material Safety Data Sheets, Preparation and Submission of

O-S-595 - Sodium Dichromate, Dihydrate, Technical

(Activities outside the Federal Government may obtain copies of Federal

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Specifications, Standards, and Handbooks as outlined under General Information

in the Index of Federal Specifications and Standards and at the prices indicated

in the Index. The Index, which includes cumulative monthly supplements as issued,

is for sale on a subscription basis by the Superintendent of Documents, U.S.

Government Printing Office, Washington, DC 20402.

(Single copies of this specification and other Federal Specifications required

by activities outside the Federal Government for bidding purposes are available

without charge from Business Service Centers at the General Services

Administration Regional Offices in Boston, New York, Washington, DC, Atlanta,

Chicago, Kansas City, MO, Fort Worth, Denver, San Francisco, Los Angeles, and

Seattle, WA.)

(Federal Government activities may obtain copies of Federal Specifications,

Standards, and Handbooks and the Index of Federal Specifications and Standards

from established distribution points in their agencies.)

MILITARY SPECIFICATIONS

MIL-S-5002 - Surface Treatments and Inorganic Coatings for Metal Surfaces of

Weapons Systems

MIL-C-13924 - Coating, Oxide, Black for Ferrous Metals

MILITARY STANDARDS

MIL-STD-105 - Sampling Procedure and Tables for Inspection by Attributes

MIL-STD-753 - Corrosion-Resistant Steel Parts: Sampling, Inspection and Testing

for Surface Passivation.

(Copies of specifications, standards, handbooks, drawings, publications, and

other Government documents required by contractors in connection with specific

acquisition functions should be obtained from the contracting activity or as

directed by the contracting activity.)

2.2 Non-Government publications. The following documents form a part of this

document to the extent specified herein. Unless otherwise specified, the issues

of the documents which are DoD adopted are those listed in the issue of the DODISS

cited in the solicitation. Unless otherwise specified, the issues of documents

not listed in the DODISS are the issues of the documents cited in the solicitation

(see 6.2).

AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM)

ASTM A380 - Cleaning and Descaling Stainless Steel Parts, Equipment, and Systems

ASTM B117 - Salt Spray (Fog) Testing

ASTM B254 - Preparation of, and Electroplating on Stainless Steel

(Application for copies should be addressed to the American Society for Testing

and Materials (ASTM), 1916 Race Street, Philadelphia, PA 19103.)

3. REQUIREMENTS

3.1 Materials. The chemicals and reagents used for passivation of

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