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ASTM D 4935 : 2010

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Standard Test Method for Measuring the Electromagnetic Shielding Effectiveness of Planar Materials
Available format(s)

Hardcopy , PDF

Superseded date

09-04-2020

Language(s)

English

Published date

05-01-2010

CONTAINED IN VOL. 10.02, 2018 Gives procedure for determining the electromagnetic (EM) shielding effectiveness (SE) of a planar material due to plane wave, far field EM wave.

1.1 This test method provides a procedure for measuring the electromagnetic (EM) shielding effectiveness (SE) of a planar material for a plane, far-field EM wave. From the measured data, near-field SE values may be calculated for magnetic (H) sources for electrically thin specimens. , Electric (E) field SE values may also be calculated from this same far-field data, but their validity and applicability have not been established.

1.2 The measurement method is valid over a frequency range of 30 MHz to 1.5 GHz. These limits are not exact, but are based on decreasing displacement current as a result of decreased capacitive coupling at lower frequencies and on overmoding (excitation of modes other than the transverse electromagnetic mode (TEM)) at higher frequencies for the size of specimen holder described in this test method. Any number of discrete frequencies may be selected within this range. For electrically thin, isotropic materials with frequency independent electrical properties of conductivity, permittivity, and permeability, measurements may be needed at only a few frequencies as the far-field SE values will be independent of frequency. If the material is not electrically thin or if any of the parameters vary with frequency, measurements should be made at many frequencies within the band of interest.

1.3 This test method is not applicable to cables or connectors.

1.4 UnitsThe values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.5 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.

Committee
D 09
DevelopmentNote
Supersedes ASTM ES 7 (12/2001)
DocumentType
Test Method
Pages
11
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy
Supersedes

NF ISO 17334 : 2009 METALLIC AND OTHER INORGANIC COATINGS - AUTOCATALYTIC NICKEL OVER AUTOCATALYTIC COPPER FOR ELECTROMAGNETIC SHIELDING
IEEE 1302-2008 IEEE Guide for the Electromagnetic Characterization of Conductive Gaskets in the Frequency Range of DC to 18 GHz
08/30101302 DC : DRAFT JAN 2008 BS ISO 17334 - METALLIC AND OTHER INORGANIC COATINGS - AUTOCATALYTIC NICKEL OVER AUTOCATALYTIC COPPER FOR ELECTROMAGNETIC SHIELDING
ISO 17334:2008 Metallic and other inorganic coatings — Autocatalytic nickel over autocatalytic copper for electromagnetic shielding
ASTM B 904 : 2000 : R2004 Standard Specification for Autocatalytic Nickel over Autocatalytic Copper for Electromagnetic Interference Shielding
ASTM B 904 : 2000 Standard Specification for Autocatalytic Nickel over Autocatalytic Copper for Electromagnetic Interference Shielding
BS ISO 17334:2008 Metallic and other inorganic coatings. Autocatalytic nickel over autocatalytic copper for electromagnetic shielding
ASTM B 904 : 2000 : R2009 Standard Specification for Autocatalytic Nickel over Autocatalytic Copper for Electromagnetic Interference Shielding
ASTM B 904 : 2000 : R2014 Standard Specification for Autocatalytic Nickel over Autocatalytic Copper for Electromagnetic Interference Shielding

ASTM D 1711 : 2015 : REDLINE Standard Terminology Relating to Electrical Insulation

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