ASTM E1234-07

Standard Practice for Handling, Transporting, and Installing Nonvolatile Residue (NVR) Sample Plates Used in Environmentally Controlled Areas for Spacecraft

ABSTRACT
This practice covers the proper procedures for handling, transporting, and installing sample plates used for the gravimetric determination of nonvolatile residue (NVR) within and between environmentally controlled facilities for spacecraft. This procedure shall appropriately require the following apparatus and materials: Type 316 corrosion-resistant steel NVR plate; Type 316 corrosion-resistant steel NVR plate cover; noncontaminating nylon (polyamide bag); sealable aluminum NVR plate carrier; solvent compatible and resistant work gloves; oil-free aluminum foil; HEPA filters; and HEPA filtered workstation.
SCOPE
1.1 This practice covers the handling, transporting, and installing of sample plates used for the gravimetric determination of nonvolatile residue (NVR) within and between facilities.
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-2007
• ICS: 49.025.01 - Materials for aerospace construction in general
• ICS: 49.140 - Space systems and operations
• Technical Committee: E21 - Space Simulation and Applications of Space Technology
• Drafting Committee: E21.05 - Contamination

Relations

• Replaces: ASTM E1234-01 - Standard Practice for Handling, Transporting, and Installing Nonvolatile Residue (NVR) Sample Plates Used in Environmentally Controlled Areas for Spacecraft
• Effective Date: 01-Apr-2007
• Replaced By: ASTM E1234-12 - Standard Practice for Handling, Transporting, and Installing Nonvolatile Residue (NVR) Sample Plates Used in Environmentally Controlled Areas for Spacecraft
• Effective Date: 01-Nov-2012
• Referred By: ASTM E2312-11(2019) - Standard Practice for Tests of Cleanroom Materials
• Effective Date: 01-Apr-2007
• Referred By: ASTM E2042/E2042M-09(2021) - Standard Practice for Cleaning and Maintaining Controlled Areas and Clean Rooms
• Effective Date: 01-Apr-2007
• Referred By: ASTM E2217-12(2019) - Standard Practice for Design and Construction of Aerospace Cleanrooms and Contamination Controlled Areas
• Effective Date: 01-Apr-2007
• Referred By: ASTM E2900-19 - Standard Practice for Spacecraft Hardware Thermal Vacuum Bakeout
• Effective Date: 01-Apr-2007
• Referred By: ASTM E1235-12(2020)e1 - Standard Test Method for Gravimetric Determination of Nonvolatile Residue (NVR) in Environmentally Controlled Areas for Spacecraft
• Effective Date: 01-Apr-2007
• Referred By: ASTM E2352-19 - Standard Practice for Aerospace Cleanrooms and Associated Controlled Environments—Cleanroom Operations
• Effective Date: 01-Apr-2007

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: E1234 − 07
StandardPractice for
Handling, Transporting, and Installing Nonvolatile Residue
(NVR) Sample Plates Used in Environmentally Controlled
1
Areas for Spacecraft
This standard is issued under the fixed designation E1234; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope 2.4 Institute of Environmental Sciences and Technology:
3
IEST-RP-CC001.3, HEPA and ULPA Filters
1.1 This practice covers the handling, transporting, and
3
IEST-RP-CC007.1, Testing ULPA Filters
installing of sample plates used for the gravimetric determina-
3
IEST-RP-CC034.1, HEPA and ULPA Filter Leak Tests
tion of nonvolatile residue (NVR) within and between facili-
IEST-STD-CC1246, Product Cleanliness Levels and Con-
ties.
3
tamination Control Program
1.2 The values stated in SI units are to be regarded as the
2.5 American National Standards Institute:
standard.
ANSI/ASME B46.1-1985, Surface Texture (Surface
5
1.3 This standard does not purport to address all of the
Roughness, Waviness, and Lay)
safety concerns, if any, associated with its use. It is the
3. Terminology
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
3.1 Definitions:
bility of regulatory limitations prior to use.
3.1.1 ISO Class N (airborne particulate cleanliness class),
n—level of airborne particulate concentrations as defined in
2. Referenced Documents N
ISO 14644-1 and 14644-2, where 10 is the maximum
2
2.1 ASTM Standards:
allowable concentrations (particles per cubic metre).
E1235 Test Method for Gravimetric Determination of Non- 3.1.1.1 Discussion—The considered particle sizes (lower
volatile Residue (NVR) in Environmentally Controlled
threshold values) applicable for classification with ISO
Areas for Spacecraft 14644-1 are limited to the range from 0.1 through 5 µm.
2.2 ISO Standards:
Particleslargerthan5µm(macroparticles)maybeexpressedin
14644-1, Cleanrooms and Associated Controlled
accordance with Annex E of ISO 14644-1.
3
Environments—Part 1: Classification of Air Cleanliness
3.1.2 FS209, n—the level of cleanliness specified by the
14644-2, Cleanrooms and Associated Controlled
maximumallowablenumberofparticlespercubicfootofairas
Environments—Part 2: Specifications for Testing and
defined in FED-STD-209E.
Monitoring to Prove Continued Compliance with ISO
3.1.2.1 Discussion—This is provided for information and to
3
14644-1
facilitate the transition to the use of the ISO classification
2.3 U.S. Federal Standard:
standard (ISO 14644-1).
FED-STD-209E Airborne Particulate Cleanliness Classes in
3.1.3 clean area, n—a general term that includes
4
Cleanrooms and Clean Zones
cleanrooms, controlled areas, good housekeeping areas, and
other areas that have contamination control by physical design
1
This practice is under the jurisdiction of ASTM Committee E21 on Space
and specified operating procedures.
Simulation and Applications of Space Technology and is the responsibility of
3.1.4 clean zone, n—a defined space in which the contami-
Subcommittee E21.05 on Contamination.
Current edition approved April 1, 2007. Published May 2007. Originally
nation is controlled to meet specified cleanliness levels.
approved in 1988. Last previous edition approved in 2001 as E1234 – 01. DOI:
3.1.5 contaminant, n—unwanted molecular and particulate
10.1520/E1234-07.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
matter that could affect or degrade the performance of the
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
components upon which they reside.
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. 3.1.6 contamination, n—a process of contaminating.
3
Available from Institute of Environmental Sciences and Technology, 940 E.
Northwest Highway, Mount Prospect, IL 60056.
4 5
Available from Institute of Environmental Sciences and Technology, 940 E. Available from American Society of Mechanical Engineers, United Engineer-
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E1234 − 07
3.1.7 controlled area, n—an environmentally controlled 4. Summary of Practice
area, operated as a cleanroom, but without the final stage of
4.1 Covered, stainless steel, NVR plates are transported in a
HEPA (or better) filters used in cleanrooms.
sealed carrier within an outer
...