ASTM E2042-04

Standard Practice for Cleaning and Maintaining Controlled Areas and Clean Rooms

SIGNIFICANCE AND USE
This practice identifies methods for cleaning and maintaining controlled areas and clean rooms as defined by ISO 14644-1 and ISO 14644-2. Cleaning procedures are described, and cleaning frequency for different classes of facility are given. Compliance with this practice will make it easier and more likely that the required level of facility cleanliness will be maintained. A cleaner facility also will help to protect flight hardware from contamination and should reduce the frequency for cleaning flight hardware. This practice does not discuss operation and operational procedures for cleanrooms and controlled areas. Other documents such as IEST-RP-CC026 and Practice E 2352 provide recommended practices for operating cleanrooms and controlled areas.
SCOPE
1.1 This practice covers the procedures to be followed for the initial cleaning and normal maintenance of cleanrooms and controlled areas. This practice is applicable to aerospace clean areas where both particles and molecular films (NVR) must be controlled.
1.2 The values stated in SI units are to be regarded as the standard.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 31-Mar-2004
• ICS: 13.040.35 - Cleanrooms and associated controlled environments
• Technical Committee: E21 - Space Simulation and Applications of Space Technology
• Drafting Committee: E21.05 - Contamination

Relations

• Replaces: ASTM E2042-99 - Standard Practice for Cleaning and Maintaining Controlled Areas and Clean Rooms
• Effective Date: 01-Apr-2004
• Replaced By: ASTM E2042/E2042M-09 - Standard Practice for Cleaning and Maintaining Controlled Areas and Clean Rooms
• Effective Date: 01-Apr-2009
• Referred By: ASTM E2217-12(2019) - Standard Practice for Design and Construction of Aerospace Cleanrooms and Contamination Controlled Areas
• Effective Date: 01-Apr-2004
• Referred By: ASTM E2352-19 - Standard Practice for Aerospace Cleanrooms and Associated Controlled Environments—Cleanroom Operations
• Effective Date: 01-Apr-2004
• Referred By: ASTM E1548-09(2022) - Standard Practice for Preparation of Aerospace Contamination Control Plans
• Effective Date: 01-Apr-2004

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:E2042–04
Standard Practice for
Cleaning and Maintaining Controlled Areas and Clean
1
Rooms
This standard is issued under the fixed designation E 2042; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope Controlled Areas Designed for Electronic and Similar
Applications
1.1 This practice covers the procedures to be followed for
F 50 Practice for Continuous Sizing and Counting of Air-
the initial cleaning and normal maintenance of cleanrooms and
borne Particles in Dust-ControlledAreas and Clean Rooms
controlled areas. This practice is applicable to aerospace clean
Using Instruments Capable of Detecting Single Sub-
areas where both particles and molecular films (NVR) must be
Micrometer and Larger Particles
controlled.
3
2.2 IEST Standards:
1.2 The values stated in SI units are to be regarded as the
IEST-RP-CC007 Testing ULPA Filters
standard.
IEST-RP-CC016 The Rate of Deposition of Nonvolatile
1.3 This standard does not purport to address all of the
Residue in Cleanrooms
safety concerns, if any, associated with its use. It is the
IEST-RP-CC0018 Cleanroom Housekeeping and Monitor-
responsibility of the user of this standard to establish appro-
ing Procedures
priate safety and health practices and determine the applica-
IEST-RP-CC003 Garment System Considerations for
bility of regulatory limitations prior to use.
Cleanrooms and Other Controlled Environments
2. Referenced Documents
IEST-RP-CC026 Cleanroom Operations
2
IEST-STD-CC1246D Product Cleanliness Levels and Con-
2.1 ASTM Standards:
4
tamination Control Program
D 1193 Specification for Reagent Water
5
2.3 US Federal Standards:
E 1234 Practice for Handling, Transporting, and Installing
FED-STD-209E AirborneParticulateCleanlinessClassesin
Nonvolatile Residue (NVR) Plates Used in Environmen-
6
Cleanrooms and Clean Zones
tally Controlled Areas for Spacecraft
TT-I-735 Isopropyl Alcohol
E 1235 TestMethodforGravimetricDeterminationofNon-
5
O-A-51 Acetone
volatile Residue (NVR) in Environmentally Controlled
5
2.4 US Department of Defense Standards:
Areas for Spacecraft
MIL-D-16791 Detergents, General Purpose (Liquid, Non-
E 1549 Specification for ESD Controlled Garments Re-
Ionic)
quired in Cleanrooms and Controlled Environments for
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2.5 International Standards:
Spacecraft for Non-Hazardous and Hazardous Operations
ISO 14644-1 Cleanrooms and Associated Controlled
E 1560 TestMethodforGravimetricDeterminationofNon-
Environments—Part 1: Classification of Air Cleanliness
volatile Residue from Cleanroom Wipers
ISO 14644-2 Cleanrooms and Associated Controlled
E 2352 Practice for Aerospace Cleanrooms and Associated
Environments—Part 2: Specifications for Testing and
Controlled Environments—Cleanroom Operations
Monitoring to Prove Continued Compliance with ISO
F 24 Method for Measuring and Counting Particulate Con-
14644-1
tamination on Surfaces
F 25 Test Method for Sizing and Counting Airborne Par-
ticulate Contamination in Clean Rooms and Other Dust-
3
Available from Institute of Environmental Science and Technology (IEST),
5005 Newport Dr., Suite 506, Rolling Meadows, IL 60008-3841.
4
IEST-STD-CC1246D replaced MIL-STD-1246.
1 5
This practice is under the jurisdiction of ASTM Committee E21 on Space Available from Superintendent of Documents, US Government Printing Office,
SimulationandtheApplicationsofSpaceTechnologyandisthedirectresponsibility Washington, DC 20402.
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of Subcommittee E21.05 on Contamination. Cancelled Nov. 29, 2001 and replaced with ISO 14644-1 and 14644-2.
Current edition approved Apr. 1, 2004. Published April 2004. Originally FED-STD-209E may be used by mutual agreement between buyer and seller.
approved in 1999. Last previous edition approved in 1999 as E 2042 – 99. Available from U.S. Government Printing Office, Superintendent of Documents,
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401. FS209E
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM cleanroom classes are given for reference in parentheses after the ISO classes.
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Standards volume information, refer to the standard’s Document Summary page on Available from International Organization for Standardization (ISO), 1 rue de
the ASTM website. Varembé, Case postale 56, CH-1211, Geneva 20, Switzerland.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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E2042–04
3. Terminology 3.1.7.1 Discussion—Only rough filters (50 to 60 % effi-
ciency) and m
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