ASTM D 4174 : 2017

Scope

1

Referenced Documents

2

Terminology

3

Significance and Use

4

Types of Contamination

5

General

5.1

Water

5.2

Soluble Contaminants

5.3

Insoluble Contaminants

5.4

Lodged Contamination

5.4.2.1

Suspended or Loose Contamination

5.4.2.2

Contamination Control

6

General

6.1

Initial Filling

6.1.1

In-Service Units

6.1.2

Connection of Contamination Control System

6.1.3

Piping or Tubing Contamination Control System

6.1.4

Contamination Control Procedures

6.2

Full Flow Contamination Control

6.2.1

Bypass Contamination Control

6.2.2

Batch Contamination Control

6.2.3

Contamination Control Processes

6.3

Gravity

6.3.1

Mechanical

6.3.2

Centrifuge

6.3.2.1

Filters

6.3.2.2

Supplementary Methods

6.3.3

Limitations of Contamination Control Devices

6.3.4

Storage

7

General

7.1

Inspection

8

General

8.1

System Components

8.2

Valves, Strainers, and Coolers

8.2.1

Sumps and Tanks

8.2.2

Control Devices

8.2.3

Pumps

8.2.4

Flushing Program

9

General

9.1

Preparation of System for Flushing

9.2

Fluid Heating Prior to Flushing

9.3

Selection of Flushing Oils

9.4

System Operation Fluid

9.4.1

Special Flushing Oil

9.4.2

Flushing Oil Selection Guide

9.4.3

Flushing Procedure for New Systems

9.5

Flushing Oil Charge

9.5.1

Cleaning of Filtration Devices

9.5.2

Cleaning of System Components

9.5.3

System Flushing and Flush Acceptance Criteria

9.5.4

Draining of Flushing Oil

9.5.5

Displacement Oil

9.5.6

Interim Corrosion Protection

9.5.7

New Fluid Charge

9.5.8

Flushing of Used Systems

9.6

General Guidelines

9.6.1

Procedure

9.6.2

System Maintenance

10

Preinstallation

10.2

In-Service Units

10.3

Decision to Flush In-Service Hydraulic Systems

10.4

Fluid Condition Monitoring

11

Fluid Sampling Techniques

11.2

Visual Inspection

11.3

Laboratory Analysis

11.4

Fluid Cleanliness Criteria

11.5

General Information

12

Centrifuge Ratings

12.2

Coalescence

12.3

Vacuum Dehydration

12.4

Adsorption

12.5