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NASA MSFC SPEC 1870 : 2005

Current
Current

The latest, up-to-date edition.

GUIDELINES FOR EVALUATION OF CORROSION INHIBITING PRESERVATIVES
Published date

01-01-2005

DOCUMENT HISTORY LOG
FOREWORD
1 SCOPE
  1.1 Purpose
  1.2 Applicability
2 APPLICABLE DOCUMENTS
  2.1 Government Documents
  2.2 American Society for Testing and Materials (ASTM)
       Documents
  2.3 Order of Precedence
3 DEFINITIONS
  3.1 Corrosion Inhibiting Preservatives
4 REQUIREMENTS
  4.1 Material Usage Agreement
  4.2 Classification of Corrosion Inhibiting Preservatives
  4.3 Classification of Test Methods
  4.4 Test Methods for Each Class Environment
  4.5 Material
  4.6 Test Panels
  4.7 Surface Preparation
  4.8 Application of Preservative
  4.9 Test Panel Holders
  4.10 Safety
5 QUALITY ASSURANCE PROVISIONS
  5.1 Responsibility for Inspections
6 TEST METHODS
  6.1 Method I - Outdoor Environmental Exposure
       6.1.1 Summary of Practice
       6.1.2 Test Sites
       6.1.3 Construction of Exposure Racks
       6.1.4 Spacing of Panels
       6.1.5 Orientation of Panels
       6.1.6 Test Duration
  6.2 Method II - Salt Fog Exposure
       6.2.1 Summary of Practice
       6.2.2 Salt Spray Apparatus
       6.2.3 Orientation of Panels in the Salt Spray
              Chamber
       6.2.4 Preparation of Salt Solution
       6.2.5 pH of Collected Solution
       6.2.6 Air Supply
       6.2.7 Temperature Inside the Salt Spray Chamber
       6.2.8 Nozzles
       6.2.9 Continuity of Test
       6.2.10 Test Duration
  6.3 Method III - Alternate Immersion
       6.3.1 Summary of Practice
       6.3.2 Alternate Immersion Apparatus
       6.3.3 Methods of Immersion
       6.3.4 Rate of Immersion
       6.3.5 Reagents
       6.3.6 Solution Condition
       6.3.7 Temperature
       6.3.8 Minimum Volume
       6.3.9 Replenishment of Water Lost by Evaporation
       6.3.10 Replacement of solution
       6.3.11 Room Parameters
       6.3.12 Period of Cycle
       6.3.13 Test Duration in Alternate Immersion
  6.4 Method IV - Humidity Exposure
       6.4.1 Summary of Practice
       6.4.2 Apparatus
       6.4.3 Chamber
       6.4.4 Data Collection
       6.4.5 Velocity of Air
       6.4.6 Methods to Produce Relative Humidity
       6.4.7 Water Used
       6.4.8 Cautions
       6.4.9 Test Duration
  6.5 Method V - Simulated Industrial Exposure (SO[2])
       6.5.1 Summary of Practice
       6.5.2 Safety Precautions
       6.5.3 Apparatus
       6.5.4 Test Chamber
       6.5.5 Test Panel Holder
       6.5.6 Reagents
       6.5.7 Humidity
       6.5.8 Temperature
       6.5.9 Procedure
       6.5.10 Test Duration
7 EXAMINATION
APPENDIX A - THE CORROSION INHIBITING PRESERVATIVE
             MATERIAL USAGE AGREEMENT FORM (PMUA)
APPENDIX B - DETAILED INFORMATION FOR THE EVALUATION
             OF CORROSION INHIBITING PRESERVATIVES
APPENDIX C - QUICK REFERENCE CHART FOR THE TEST
             ENVIRONMENTS

Sets forth the criteria to be used in the evaluation of corrosion inhibiting preservatives for space vehicles, associated equipment, and facilities.

DocumentType
Standard
PublisherName
National Aeronautics and Space Administration
Status
Current

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