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ASTM E1851-97

(Test Method)

Standard Test Method for Electromagnetic Shielding Effectiveness of Durable Rigid Wall Relocatable Structures

Standard Test Method for Electromagnetic Shielding Effectiveness of Durable Rigid Wall Relocatable Structures

SCOPE
1.1 The test method described in this standard can be used to determine the electromagnetic shielding effectiveness of durable relocatable shielded enclosures.  
1.1.1 The intended application of this test method is for virgin shielded enclosures that do not have any equipment or equipment racks. It is recommended that tests be conducted before the interior finish work begins. However, the shield assembly including all enclosure penetrations shall be completed and required penetration protection devices shall be installed in accordance with the design specification. The test method can also be used on existing shielded enclosures after repair work is done to verify workmanship, but it may be necessary to remove equipment or equipment racks to gain access to a test area.  
1.1.2 The test procedures delineated in this document are comprehensive and may require several days to complete for a room-size shielded enclosure. A user can apply this test method for a first article test that requires proof of concept and validation of design and fabrication technique. Appendix B provides guidance in choosing test points so shielding effectiveness tests on a room-size shielded enclosure may be completed in about one-half day for which it applies to shielded enclosures coming off an assembly line.  
1.2 This test method is for use in the following frequency ranges: 140 to 160 kHz, 14 to 16 MHz, 300 to 500 MHz, 900 to 1000 MHz, and 8.5 to 10.5 GHz. Specific test frequencies within these ranges are required (see 10.1.1 and 10.2.1). Additional measurements in the range of 10 kHz to 10.5 GHz may be performed. For specific applications, the frequency range may be extended from 50 Hz to 40 GHz. Appendix A provides guidance on selecting measurement frequencies.  
1.3 This test method is not applicable to individual components such as separate walls, floors, ceilings, or shielded racks.  
1.4 This standard may involve hazardous materials, operations, equipment, or any combination.  
1.5 The values stated in SI units are to be regarded as the standard. The values in parentheses are for information only.  
1.6 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
09-Jan-1997
ICS
13.280 - Radiation protection
Technical Committee
E06 - Performance of Buildings
Drafting Committee
E06.53 - Materials and Processes for Durable Rigidwall Relocatable Structures
Current Stage
Ref Project

Relations

Replaced By
ASTM E1851-02 - Standard Test Method for Electromagnetic Shielding Effectiveness of Durable Rigid Wall Relocatable Structures
Effective Date
10-Apr-2002

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ASTM E1851-97 - Standard Test Method for Electromagnetic Shielding Effectiveness of Durable Rigid Wall Relocatable StructuresASTM E1851-97 - Standard Test Method for Electromagnetic Shielding Effectiveness of Durable Rigid Wall Relocatable Structures
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ASTM E1851-97 - Standard Test Method for Electromagnetic Shielding Effectiveness of Durable Rigid Wall Relocatable Structures
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Standards Content (Sample)

Designation: E 1851 – 97 An American National Standard
Standard Test Method for
Electromagnetic Shielding Effectiveness of Durable Rigid
1
Wall Relocatable Structures
This standard is issued under the fixed designation E 1851; 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 safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
1.1 The test method described in this standard can be used
priate safety and health practices and determine the applica-
to determine the electromagnetic shielding effectiveness of
bility of regulatory limitations prior to use.
durable relocatable shielded enclosures.
1.1.1 The intended application of this test method is for
2. Referenced Documents
virgin shielded enclosures that do not have any equipment or
2.1 IEEE Standards:
equipment racks. It is recommended that tests be conducted
IEEE Std 299-1991, IEEE Standard Method for Measuring
before the interior finish work begins. However, the shield
the Effectiveness of Electromagnetic Shielding Enclosures
assembly including all enclosure penetrations shall be com-
IEEE Std C95.1-1991, IEEE Standard for Safety Levels
pleted and required penetration protection devices shall be
with Respect to Human Exposure to Radio Frequency
installed in accordance with the design specification. The test
Electromagnetic Fields, 3 kHz to 300 GHz
method can also be used on existing shielded enclosures after
2.2 Military Standard:
repair work is done to verify workmanship, but it may be
MIL-STD-188-125, High Altitude Electromagnetic Pulse
necessary to remove equipment or equipment racks to gain
4
(HEMP) Protection for Ground Based C I Facilities Per-
access to a test area.
forming Critical, Time-Urgent Missions
1.1.2 The test procedures delineated in this document are
2.3 OSHA Standard:
comprehensive and may require several days to complete for a
OSHA Regulation, 29 CFR 1910, Department of Labor,
room-size shielded enclosure. A user can apply this test method
July 1992
for a first article test that requires proof of concept and
validation of design and fabrication technique. Appendix X2
3. Summary of Test Method
provides guidance on choosing test points so shielding effec-
3.1 Test Configuration—A transmitting antenna is con-
tiveness tests on a room-size shielded enclosure may be
nected to an electromagnetic source set to a specific frequency
completed in about one-half day for which it applies to
and amplitude. A receiving antenna is placed a specified
shielded enclosures coming off an assembly line.
distance from the transmitting antenna, and the received
1.2 This test method is for use in the following frequency
electromagnetic field level is recorded as a reference or
ranges: 140 to 160 kHz, 14 to 16 MHz, 300 to 500 MHz, 900
calibration measurement. The transmitting antenna and elec-
to 1000 MHz, and 8.5 to 10.5 GHz. Specific test frequencies
tromagnetic source are placed outside the shielded enclosure.
within these ranges are required (see 10.1.1 and 10.2.1).
The receiving antenna and associated test equipment are placed
Additional measurements in the range of 10 kHz to 10.5 GHz
inside the shielded enclosure. The transmitting and receiving
may be performed. For specific applications, the frequency
antenna’s separation, frequency, and amplitude are the refer-
range may be extended from 50 Hz to 40 GHz. Appendix X1
ence measurements. The transmitting and receiving antennas
provides guidance on selecting measurement frequencies.
are at the same height for a given test point. The received
1.3 This test method is not applicable to individual compo-
electromagnetic field level is recorded as the test measurement.
nents such as separate walls, floors, ceilings, or shielded racks.
The ratio of the test measurement to the reference measurement
1.4 This standard may involve hazardous materials, opera-
is the electromagnetic shielding effectiveness of the shielded
tions, equipment, or any combination.
structure at the measurement location and frequency. The
1.5 The values stated in SI units are to be regarded as the
logarithm of this ratio is typically used in expressing the
standard. The values in parentheses are for information only.
shielding effectiveness in decibels.
1.6 This standard does not purport to address all of the
3.2 Test Frequencies—A summary of nominal test frequen-
cies and corresponding test configurations is shown in Table 1.
1
This test method is under the jurisdiction of ASTM Committee E-6 on
Performance of Buildings and is the direct responsibility of Subcommittee E06.53
4. Significance and Use
on Materials and Processes for Durable Rigidwall Relocatable Structures.
4.1 This standard provides measurement procedures for
Curr
...

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Standard Test Method for Electromagnetic Shielding Effectiveness of Durable Rigid Wall Relocatable Structures

SIGNIFICANCE AND USE
5.1 This standard provides measurement procedures for determining the electromagnetic shielding effectiveness of durable rigid wall relocatable shielded enclosures. This standard specifies a method for comparing the shielded enclosure performance of structures provided by different suppliers. In addition, this standard is written to minimize variations in measured shielding effectiveness at a given frequency and test point regardless of test personnel, equipment, and test site. Therefore, the shielding effectiveness of a durable rigid wall relocatable shielded enclosure of any size from any supplier can be determined. This standard specifies a minimum set of measurements at a given frequency and a minimum set of frequencies to determine shielding effectiveness.  
5.2 Source Fields—Performance of a shielded enclosure is to be assessed for two source fields: magnetic and plane wave.  
5.2.1 Magnetic Field Measurements—The attenuation provided by a shielded enclosure is assessed by using a local source to generate the near field. The magnetic field measurements are specified for two narrow frequency bands: 140 kHz to 160 kHz and 14 MHz to 16 MHz.  
5.2.2 Plane Wave Measurements—The attenuation provided by a shielded enclosure is assessed by using a locally generated distant source or plane wave field. The plane wave measurements are specified for three narrow frequency bands: 300 MHz to 500 MHz, 900 MHz to 1000 MHz, and 8.5 GHz to 10.5 GHz.
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1.1 This test method covers the determination of the electromagnetic shielding effectiveness of durable relocatable shielded enclosures.  
1.1.1 The intended application of this test method is for virgin shielded enclosures that do not have any equipment or equipment racks. It is recommended that tests be conducted before the interior finish work begins. However, the shield assembly including all enclosure penetrations shall be completed and required penetration protection devices shall be installed in accordance with the design specification. The test method can also be used on existing shielded enclosures after repair work is done to verify workmanship, but it may be necessary to remove equipment or equipment racks to gain access to a test area.  
1.1.2 The test procedures delineated in this document are comprehensive and may require several days to complete for a room-size shielded enclosure. A user can apply this test method for a first article test that requires proof of concept and validation of design and fabrication technique. Appendix X2 provides guidance on choosing test points so shielding effectiveness tests on a room-size shielded enclosure may be completed in about one-half day for which it applies to shielded enclosures coming off an assembly line.  
1.2 This test method is for use in the following frequency ranges: 140 kHz to 160 kHz, 14 MHz to 16 MHz, 300 MHz to 500 MHz, 900 MHz to 1000 MHz, and 8.5 GHz to 10.5 GHz. Specific test frequencies within these ranges are required (see 11.1.1 and 11.2.1). Additional measurements in the range of 10 kHz to 10.5 GHz may be performed. For specific applications, the frequency range may be extended from 50 Hz to 40 GHz. Appendix X1 provides guidance on selecting measurement frequencies.  
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1.2 This practice was developed for non-light-water moderated nuclear power reactors.  
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5.1 This test method is intended to provide a standardized test procedure of protective materials to ensure comparable results among manufacturers and users.  
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4.1 Radiation Shielding Window Components:  
4.1.1 Radiation shielding window components operability and long-term integrity are concerns that originate during the design and fabrication sequences. Such concerns can only be addressed, or are most efficiently addressed, during one or the other of these stages. The operability and integrity can be compromised during handling and installation sequences. For this reason, the subject equipment should be handled and installed under closely controlled and supervised conditions.  
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1.1 Intent:  
1.1.1 The intent of this standard is to provide guidance for the design, fabrication, quality assurance, inspection, testing, packaging, shipping, installation, and maintenance of radiation shielding window components. These window components include wall liner embedments, dry lead glass radiation shielding window assemblies, oil-filled lead glass radiation shielding window assemblies, shielding wall plugs, barrier shields, view ports, and the installation/extraction table/device required for the installation and removal of the window components.  
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1.2.1 This standard is intended for those persons who are tasked with the planning, design, procurement, fabrication, installation, and operation of the radiation shielding window components that may be used in the operation of hot cells, high level caves, mini-cells, canyon facilities, and very high level radiation areas.  
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5.1 Shielding performance testing should be performed to verify analytical predictions of shielding effectiveness, compliance with design requirements, and determine the location(s) of shielding deficiencies that may require either supplemental shielding, design modification, or changes to operating methods and procedures to resolve.  
5.2 Dose rates higher than adjacent shielding may be expected in the vicinity of master-slave manipulator penetrations as a result of cable or tape clearance requirements within the mechanisms where they pass through the shield walls. This is true even with supplemental shielding installed in the manipulator through tube.  
5.3 Similar to manipulator penetrations, when sources are placed directly in front of penetrations and gaps resulting from access doors or panels, radiation levels directly on the other side of the gaps or penetrations may be higher than levels in adjacent shielding or analytical predictions. If these test configurations are representative of how the shielded enclosure will actually be operated (that is, the test configuration is representative of engineered source and normally occupied work locations) than the additional expense of designing or modifying the shielded enclosure should be considered if that location is normally occupied and will result in a significant increase of dose rates to personnel.  
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1.1 This guide identifies appropriate test methods for determining the sufficiency of radiological shielding for hot cells and shielded enclosures.  
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1.4.1 Shielding performance verification testing provides evidence that the shielding configuration is sufficient for meeting established performance criteria and for identifying deficiencies in the shielding configuration or components that may not have been addressed during design. Test results are expected to demonstrate that shielding performance meets or exceeds design criteria, not match the dose rates predicted analytically.  
1.4.2 Shielding performance verification testing identifies shielding deficiencies (hot spots) in the installed configuration relative to adjacent shielding but does not demonstrate compliance with any quantitative shielding performance requirement.  
1.5 Performance testing should be specified and performed to assess shielding adequacy with sources in all critical locations.  
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5.1 This test method can be used to provide a measure of the reactivity of a material in a dilute solution in which the test response is dominated by the dissolution or leaching of the test specimen. It can be used to compare the dissolution or leaching behaviors of candidate radioactive waste forms and to study the reactions during static exposure to dilute solutions in which solution feed-back effects can be maintained negligible, depending on the test conditions.  
5.2 The test is suitable for application to natural minerals, simulated waste form materials, and radioactive waste form material specimens.  
5.3 Data from this test may form part of the larger body of data that is necessary in the logical approach to long-term prediction of waste form behavior, as described in Practice C1174. In particular, measured solution concentrations and characterizations of altered surfaces may be used in the validation of geochemical modeling codes.  
5.4 This test method excludes the use of crushed or powdered specimens and organic materials.  
5.5 Several reference test parameter values and reference leachant solutions are specified to facilitate the comparison of results of tests conducted with different materials and at different laboratories. However, other test parameter values and leachant solution compositions can be used to characterize the specimen reactivity.  
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5.5.2 Tests can be conducted to measure the effects of various test parameter values on the specimen response, including time, temperature, and S/V ratio. Tests conducted for different durations and at various temperatures provide insight into the reaction kinetics. Tests conducted at different S/V ratio provide insight into chemical affinity (solution feed-back effects) and the approach to saturation.  
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SCOPE
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1.4 Three leachant compositions and four reference test matrices of test conditions are recommended to characterize materials behavior and facilitate interlaboratory comparisons of tests results.  
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Standard Test Methods for Volatile Content of Radiation Curable Materials

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5.1 These test methods are the procedures of choice for determining volatile content of materials designed to be cured by exposure to ultraviolet light or electron beam irradiation. These types of materials contain liquid reactants that react to become part of the film during cure, but, which under the test conditions of Test Method D2369, will be erroneously measured as volatiles. The conditions of these test methods are similar to Test Method D2369 with the inclusion of a step to cure the material prior to weight loss determination. Volatile content is determined as two separate components—processing volatiles and potential volatiles. Processing volatiles is a measure of volatile loss during the actual cure process. Potential volatiles is a measure of volatile loss that might occur during aging or under extreme storage conditions. These volatile content measurements are useful to the producer and user of a material and to environmental interests for determining emissions.
SCOPE
1.1 These test methods cover procedures for the determination of weight percent volatile content of coatings, inks, and adhesives designed to be cured by exposure to ultraviolet light or to a beam of accelerated electrons.  
1.2 Test Method A is applicable to radiation curable materials that are essentially 100 % reactive but may contain traces (no more than 3 %) of volatile materials as impurities or introduced by the inclusion of various additives.  
1.3 Test Method B is applicable to all radiation curable materials but must be used for materials that contain volatile solvents intentionally introduced to control application viscosity and which are intended to be removed from the material prior to cure.  
1.4 These test methods may not be applicable to radiation curable materials wherein the volatile material is water, and other procedures may be substituted by mutual consent of the producer and user.  
1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
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ASTM E1851-21(Test Method)
Standard Test Method for Electromagnetic Shielding Effectiveness of Durable Rigid Wall Relocatable Structures

SIGNIFICANCE AND USE
5.1 This standard provides measurement procedures for determining the electromagnetic shielding effectiveness of durable rigid wall relocatable shielded enclosures. This standard specifies a method for comparing the shielded enclosure performance of structures provided by different suppliers. In addition, this standard is written to minimize variations in measured shielding effectiveness at a given frequency and test point regardless of test personnel, equipment, and test site. Therefore, the shielding effectiveness of a durable rigid wall relocatable shielded enclosure of any size from any supplier can be determined. This standard specifies a minimum set of measurements at a given frequency and a minimum set of frequencies to determine shielding effectiveness.  
5.2 Source Fields—Performance of a shielded enclosure is to be assessed for two source fields: magnetic and plane wave.  
5.2.1 Magnetic Field Measurements—The attenuation provided by a shielded enclosure is assessed by using a local source to generate the near field. The magnetic field measurements are specified for two narrow frequency bands: 140 kHz to 160 kHz and 14 MHz to 16 MHz.  
5.2.2 Plane Wave Measurements—The attenuation provided by a shielded enclosure is assessed by using a locally generated distant source or plane wave field. The plane wave measurements are specified for three narrow frequency bands: 300 MHz to 500 MHz, 900 MHz to 1000 MHz, and 8.5 GHz to 10.5 GHz.
SCOPE
1.1 This test method covers the determination of the electromagnetic shielding effectiveness of durable relocatable shielded enclosures.  
1.1.1 The intended application of this test method is for virgin shielded enclosures that do not have any equipment or equipment racks. It is recommended that tests be conducted before the interior finish work begins. However, the shield assembly including all enclosure penetrations shall be completed and required penetration protection devices shall be installed in accordance with the design specification. The test method can also be used on existing shielded enclosures after repair work is done to verify workmanship, but it may be necessary to remove equipment or equipment racks to gain access to a test area.  
1.1.2 The test procedures delineated in this document are comprehensive and may require several days to complete for a room-size shielded enclosure. A user can apply this test method for a first article test that requires proof of concept and validation of design and fabrication technique. Appendix X2 provides guidance on choosing test points so shielding effectiveness tests on a room-size shielded enclosure may be completed in about one-half day for which it applies to shielded enclosures coming off an assembly line.  
1.2 This test method is for use in the following frequency ranges: 140 kHz to 160 kHz, 14 MHz to 16 MHz, 300 MHz to 500 MHz, 900 MHz to 1000 MHz, and 8.5 GHz to 10.5 GHz. Specific test frequencies within these ranges are required (see 11.1.1 and 11.2.1). Additional measurements in the range of 10 kHz to 10.5 GHz may be performed. For specific applications, the frequency range may be extended from 50 Hz to 40 GHz. Appendix X1 provides guidance on selecting measurement frequencies.  
1.3 This test method is not applicable to individual components such as separate walls, floors, ceilings, or shielded racks.  
1.4 This standard may involve hazardous materials, operations, equipment, or any combination.  
1.5 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard.  
1.6 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.7...

  • Standard
    16 pages
    English language
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  • Standard
    16 pages
    English language
    sale 15% off