IEC 61338-4:2005

IEC 61338-4 ®
Edition 1.0 2005-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Waveguide type dielectric resonators –
Part 4: Sectional specification

Résonateurs diélectriques à modes guidés –
Partie 4: Spécification intermédiaire

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IEC 61338-4 ®
Edition 1.0 2005-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Waveguide type dielectric resonators –

Part 4: Sectional specification

Résonateurs diélectriques à modes guidés –

Partie 4: Spécification intermédiaire

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX R
ICS 31.140 ISBN 978-2-8322-1339-1

– 2 – 61338-4  IEC:2005
CONTENTS
FOREWORD . 3

1 General . 5
1.1 Scope . 5
1.2 Normative references . 5
2 Preferred ratings and guidance on detail specifications . 5
2.1 Preferred ratings and characteristics . 5
2.2 Information to be prescribed in detail specifications. 5
3 Capability approval . 6
3.1 Eligibility for capability approval . 6
3.2 Structural similarity . 6
3.3 Procedures for capability approval . 6
3.4 Description of capability . 7
3.5 Capability Qualifying Components (CQCs) . 7
3.6 Inspection requirements for CQCs . 8
3.7 Programme for capability approval . 8
3.8 Capability approval report . 9
3.9 Abstract of description of capability . 9
3.10 Modifications likely to affect the capability approval . 9
3.11 Initial capability approval . 9
3.12 Maintenance of capability approval . 13
3.13 Rework and repair work . 14
3.14 Quality conformance inspection . 14
3.15 Screening procedures . 15
4 Test and measurement procedures . 15

Annex A (normative) Example layout of an abstract of description of capability . 16
Annex B (normative) Layout of the front page of a CQC specification for process control . 17
Annex C (normative) Layout of the front page of a CQC specification to demonstrate
boundary or limit . 18

Figure 1 – Selection of CQCs . 10
Figure 2 – Test plan for sintering process CQCs . 11
Figure 3 – Test plan for deposition of electrode material CQCs . 11
Figure 4 – Test plan for resonator performance CQCs . 12
Figure 5 – Test plan for climatic performance CQCs . 12
Figure 6 – Test plan for humidity CQCs . 12
Figure 7 – Test plan for ageing CQCs . 13
Figure 8 – Test plan for mechanical endurance CQCs . 13
Figure 9 – Test plan for resistance to soldering heat CQCs . 13

Table 1 – Periodic tests for maintenance of capability approval . 14

61338-4  IEC:2005 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
WAVEGUIDE TYPE DIELECTRIC RESONATORS –

Part 4: Sectional specification

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
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5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
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Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 61338-4 has been prepared by IEC technical committee 49:
Piezoelectric and dielectric devices for frequency control and selection.
This bilingual version (2014-02) corresponds to the monolingual English version, published in
2005-03.
The text of this standard is based on the following documents:
FDIS Report on voting
49/702/FDIS 49/716/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.

– 4 – 61338-4  IEC:2005
The French version of this standard has not been voted upon.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
IEC 61338 consists of the following parts, under the general title: Waveguide type dielectric
resonators:
Part 1: Generic specification
Part 1-3: General information and test conditions – Measurement method of complex relative
permittivity for dielectric resonator materials at microwave frequency
Part 2: Guidelines for oscillator and filter applications
Part 4: Sectional specification (this publication)
Part 4-1: Blank detail specification
The committee has decided that the contents of this publication will remain unchanged until the
maintenance result date indicated on the IEC web site under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
61338-4  IEC:2005 – 5 –
WAVEGUIDE TYPE DIELECTRIC RESONATORS –

Part 4: Sectional specification

1 General
1.1 Scope
This sectional specification applies to waveguide type dielectric resonators as custom built
products or as standard catalogue items whose quality is assessed on the basis of capability
approval.
It prescribes the preferred ratings and characteristics with the appropriate tests and measuring
methods contained in IEC 61338-1, and gives the general performance requirements to be
used in detail specifications for waveguide type dielectric resonators.
The concept of preferred values is in general directly applicable to standard catalogue items
but does not necessarily apply to custom built products.
1.2 Normative references
The following referenced documents are indispensable for the application of this document. For
dated references, only the edition cited applies. For undated references, the latest edition of
the referenced document (including any amendments) applies.
IEC 61338-1, Waveguide type dielectric resonators – Part 1: Generic specification
QC 001002-3, IEC Quality Assessment System for Electronic Components (IECQ) – Rules of
Procedure – Part 3: Approval procedures
QC 001005, Register of Firms, Products and Services approved under the IECQ System,
including ISO 9000
2 Preferred ratings and guidance on detail specifications
2.1 Preferred ratings and characteristics
The values given in detail specifications shall preferably be selected from those stated in 2.3 of
IEC 61338-1.
2.2 Information to be prescribed in detail specifications
(for both custom built and standard catalogue items)
Guidance on the preparation of detail specifications is given in the blank detail specification.
Each detail specification shall state all the tests and measurements required for inspection. For
standard catalogue items this shall, as a minimum, include the relevant tests given in the blank
detail specification, with methods and severities.
The following information shall be given in each detail specification.

– 6 – 61338-4  IEC:2005
2.2.1 Outline drawing and dimensions
The detail specification shall include a dimensional drawing of the waveguide type dielectric
resonator and/or reference to an appropriate international standard, to permit easy recognition
and to provide information for dimensioning and gauging procedures.
The dimensions shall include the overall dimensions of the body of the component and the size
and spacing of the terminations. All dimensions shall be stated in millimetres.
2.2.2 Marking
The detail specification shall prescribe the content of the marking on the waveguide type
dielectric resonator primary package in accordance with 2.4 of IEC 61338-1.
2.2.3 Ordering information
The detail specification shall prescribe that the following information is required when ordering
a waveguide type dielectric resonator.
a) Quantity
b) Detail specification number, issue number and date
and where applicable
c) Nominal frequency in MHz or GHz
d) Full description of any additional requirements to identify the waveguide type dielectric
resonator.
2.2.4 Additional information (not for inspection purposes)
The detail specification may include information which is not normally required to be verified by
the inspection procedure, such as circuit diagrams, curves, drawings and notes needed for
clarification.
3 Capability approval
3.1 Eligibility for capability approval
Prior to making an application for capability approval a manufacturer shall first obtain
manufacturer’s inspection approval in accordance with QC 001002-3.
The primary stage of manufacture shall be as defined in 3.2 of IEC 61338-1.
3.2 Structural similarity
Structural similarity is not applicable to capability approval. However, it is applicable to
released lots as defined in 3.14.1 of this specification.
3.3 Procedures for capability approval
3.3.1 General
Capability approval in waveguide type dielectric resonator technology covers:
– the complete design, material preparation and manufacturing techniques, including control
procedures and tests;
– the performance limits claimed for the processes and products, that is those specified for
the Capability Qualifying Components (CQCs);
– the range of mechanical structures for which approval is granted.

61338-4  IEC:2005 – 7 –
3.3.2 Application for capability approval
In order to obtain capability approval the manufacturer shall apply the rules of procedure given
clause 4 of QC 001002-3.
In an application for capability approval the manufacturer shall define the boundaries of the
capability for which approval is sought in accordance with 3.5.
3.3.3 Granting of capability approval
Capability approval shall be granted when the manufacturer has:
– prepared a capability manual describing the capability for which he wishes to be approved,
to the satisfaction of the NSI;
– agreed with the NSI the range of CQCs, as defined in clause 4 of QC 001002-3, to be used
for the assessment of capability;
– successfully demonstrated that he can design and manufacture components which satisfy
the requirements of this sectional specification, within the limits of his capability;
– prepared a capability approval test report to the satisfaction of the NSI.
3.4 Description of capability
The manufacturer shall prepare a manual describing his capability (see clause 4 of QC 001002-3),
in relation to the technologies involved.
The manual shall be approved by the NSI who shall ensure that it is a true and a complete
record of procedures carried out by the manufacturer during the design, production, testing,
inspection and release of his products. The manual is a document that shall be treated as
'commercial in confidence'.
The manual shall include the following as a minimum:
– a general introduction and description of the technologies involved;
– aspects of customer liaison including provision of design rules (if appropriate) and
assistance to customers in the formulation of their requirements;
– a detailed description of the design rules to be used;
– the procedure for checking that the design rules are complied with for waveguide type
dielectric resonators manufactured to a detail specification;
– a list of all materials used, with references to the corresponding purchasing specifications
and goods inward inspection;
– a flow chart for the total process showing quality control points and permitted rework loops
and containing references to all process and quality control procedures;
– a declaration of processes for which approval has been sought in accordance with 3.5.1;
– a declaration of boundaries for which approval has been sought in accordance with 3.5.2;
– a list of CQCs used to assess the capability, with a general description of each, supported
by a detailed table showing where the declared boundaries of capability are demonstrated
by a particular CQC design;
– a detail specification for each CQC. These shall be produced to the satisfaction of the NSI
(see Annexes B and C).
3.5 Capability Qualifying Components (CQCs)
The manufacturer shall agree with the NSI the range of capability qualifying components,
selected in accordance with the general plan (see 3.11.2) specified in the capability manual.

– 8 – 61338-4  IEC:2005
The CQCs shall comply with the following requirements:
a) the range of CQCs used shall cover all the processes, component types and limits of the
declared capability;
b) the CQCs shall be one of the following:
– waveguide type dielectric resonators in production;
– test pieces designed for assessment of a process or range of processes;
– a combination of both of these.
When CQCs are designed and produced solely for capability approval, the manufacturer shall
satisfy the NSI that the same design rules, materials and manufacturing processes will be
applied to released products.
The CQC specifications may refer to internal control documentation which specifies production
testing and recording in order to demonstrate control and maintenance of processes and
boundaries including the use of SPC procedures where appropriate.
3.5.1 Process
The CQC specifications shall include the following processes to be assessed. This list is not
exclusive:
– sintering see 3.11.3.1
– deposition of electrodes (when applicable) see 3.11.3.2
3.5.2 Boundaries
CQCs shall demonstrate a set of boundaries which shall include the following:
– Temperature range see 3.11.4.2
– Ageing limits (when claimed) see 3.11.4.4
– Climatic category see 3.11.4.2
– Mechanical test severities see 3.11.4.5
This list is not exclusive. Where additional boundaries are claimed these shall be covered by
one or more CQCs.
3.6 Inspection requirements for CQCs
The inspection requirements shall be contained in the CQC detail specifications together
with environmental tests, measurements, severities and end point limits, where appropriate
(see 3.11). Where possible the tests applied to CQCs shall be selected from Clause 4 of
IEC 61338-1.
For capability approval and the subsequent maintenance of that approval, the inspection
requirements shall ensure that processes and design features meet the declared capability.
3.7 Programme for capability approval
The manufacturer shall prepare a programme for the assessment of the declared capability to
the satisfaction of the NSI. This programme shall be designed so that each declared boundary
condition is verified by the appropriate CQC.
The programme shall contain the following:
– a bar chart or other means of showing the proposed timetable for the approval exercise;

61338-4  IEC:2005 – 9 –
– details of all the CQCs to be used with references to their detail specifications;
– a chart showing the features to be demonstrated by each CQC.
3.8 Capability approval report
The report shall contain the following information;
– the issue number and date of the capability approval manual;
– a programme for capability approval in accordance with 3.7;
– the test results obtained during the performance of the programme;
– the test methods used.
The report shall be signed by the Chief Inspector as a true statement of the results obtained
and submitted to the NSI for approval.
3.9 Abstract of description of capability
The abstract, is intended for formal publication in QC 001005 when capability approval is
granted by the National Certified Body (NCO) on the recommendation of the NSI.
It shall include a concise description of the manufacturer's capability and give sufficient
information on the technologies, methods of construction, packaging and range of products for
which the manufacture has been approved. The layout shall conform to Annex A of this
specification indicating the boundary conditions for which approval has been granted.
3.10 Modifications likely to affect the capability approval
Any modification likely to affect the capability approval shall satisfy the requirements of
Clause 4 of QC 001002-3.
3.11 Initial capability approval
The test plans given below are to be applied to appropriately selected groups of CQCs.
The test plans are in categories as follows:
a) Process CQCs
b) Boundary CQCs
The tests referred to in each test plan are defined in Table 1. These tests have been grouped
to prove particular design areas covering materials, processes, resonator performance and
durability.
The tests in each group shall be carried out in the given order.
The approval is granted when the selected range of CQCs has collectively satisfied the
assessment requirements of the CQC detail specifications with no non-conformances allowed.
A CQC is counted as a non-conforming CQC if it has not satisfied the whole or part of the tests
of a group.
3.11.1 Procedure in the event of CQC failures
In the event of the failure of specimens to meet the test requirements, the manufacturer shall
apply the procedures given in Clause 4 of QC 001002-3.

– 10 – 61338-4  IEC:2005
3.11.2 General plan for the selection of CQCs

Powder mix
Compacting of powder mix
Sintering
See 3.11.3.1
Deposition of electrodes
See 3.11.3.2
(where applicable)
Resonator performance
See 3.11.4.1
Climatic performance
See 3.11.4.2
Humidity
See 3.11.4.3
Ageing See 3.11.4.4
Mechanical endurance
See 3.11.4.5
Resistance to soldering
See 3.11.4.6
heat
Deliverables
IEC  417/05
NOTE Some operations may be performed in a different order from that shown.

Figure 1 – Selection of CQCs
61338-4  IEC:2005 – 11 –
3.11.3 Process CQC test plans
Representative types shall be selected for each material type and each type of resonator. Eight
specimens for each shall be prepared and subjected to the following test groups.
3.11.3.1 Sintering
The purpose of this test is to demonstrate by inspection the quality of the compacting and
sintering process that the fired part dimensions and temperature coefficient are within the
design limits.
8 specimens
Test group 1A
Visual and dimensional test
8 specimens
Test group 1B
Temperature coefficient test
IEC  418/05
Figure 2 – Test plan for sintering process CQCs
3.11.3.2 Deposition of electrode material
The purpose of this test is to demonstrate the quality of the deposition of the electrode process
by inspection of the metallization, its thickness and adhesion

8 specimens
Test group 2A
Visual
8 specimens
Test group 2B
Thickness test
8 specimens
Test group 2C
Adhesion test
IEC  419/05
Figure 3 – Test plan for deposition of electrode material CQCs

– 12 – 61338-4  IEC:2005
3.11.4 Boundary CQC test plans for dielectric resonator design and performance
The purpose of these tests is to validate the design for the waveguide type dielectric resonator
(representative types) with respect to its specified performance in accordance with IEC 61338-
1 and customer requirements.
3.11.4.1 Resonator performance
A batch of 60 specimens shall be subject to the test plan shown in Figure 4 for initial testing.
Then test group 3 shall be split into 5 different test groups containing 12 specimens each.

60 specimens
Test group 3
Visual test
Electrical performance
IEC  420/05
Figure 4 – Test plan for resonator performance CQCs
3.11.4.2 Climatic performance
The purpose of these tests is to demonstrate the climatic performance of the dielectric
resonator. 12 specimens shall be subjected to the test plan shown in Figure 5.

12 specimens
Test group 4
Dry heat
Damp heat cycle
Cold
Low air pressure
Damp heat cycle
Rapid change of temperature
Electrical performance
IEC  421/05
Figure 5 – Test plan for climatic performance CQCs
3.11.4.3 Humidity
The purpose of the test is to demonstrate the resistance of dielectric resonators against heat
and humidity. 12 specimens shall be subjected to the test plan shown in Figure 6.

12 specimens
Test group 5
Damp heat steady state
Electrical performance
IEC  422/05
Figure 6 – Test plan for humidity CQCs

61338-4  IEC:2005 – 13 –
3.11.4.4 Ageing
The purpose of these tests is to demonstrate the ageing of the dielectric resonators. 12
specimens shall be subjected to the test plan shown in Figure 7.

12 specimens
Test group 6
High temperature ageing
Storage test
Electrical performance
IEC  423/05
Figure 7 – Test plan for ageing CQCs
3.11.4.5 Mechanical endurance
The purpose of these tests is to demonstrate the ability of the dielectric resonator to withstand
mechanical load. 12 specimens shall be subject to the test plan shown in Figure 8.

12 specimens
Test group 7
Bump
Shock
Vibration
Acceleration steady state
Electrical performance
IEC  424/05
Figure 8 – Test plan for mechanical endurance CQCs
3.11.4.6 Resistance to soldering heat
The purpose of this test is to demonstrate the ability of the dielectric resonators to withstand
the soldering process. 12 specimens shall be subjected to the test plan shown in Figure 9.

12 specimens
Test group 8
Resistance to soldering heat
Electrical performance
IEC  425/05
Figure 9 – Test plan for resistance to soldering heat CQCs
3.12 Maintenance of capability approval
The periodicity of testing for the maintenance of capability approval shall be as defined in Table
1 ensuring that all processes and claimed boundaries are verified at intervals except where
SPC is used for control.
– 14 – 61338-4  IEC:2005
The manufacturer shall satisfy the NSI that the range of CQCs remains representative of the
products released and in accordance with 3.5 of this specification.
CQCs taken from, or representative of current production shall be identified prior to testing.
The manufacturer shall have maintained production, so that
– the process specified in the capability manual, including any additions/deletions agreed
with the NSI since initial approval remain unchanged, in accordance with Clause 4 of
QC 001002-3;
– there has been no change in the place of manufacture, and final test;
– there has been no break exceeding 6 months in the manufacturer's production under
capability approval.
The manufacturer shall maintain a record of the progress of the maintenance of capability
programme so that at any time the capability boundaries that have been verified and those
awaiting verification in the specified period can be established.
Table 1 – Periodic tests for maintenance of capability approval
CQC test plan and Test group Periodicity Minimum numbers of specimens
clause number for each CQC
3.11.3.1 Sintering 1A 12 weeks 8
1B
3.11.3.2 Deposition of electrode 2A 12 weeks 8
material
2B
2C
3.11.4.1 Resonator performance 3 2 years 60
3.11.4.2 Climatic performance 4 2 years 12
3.11.4.3 Humidity 5 2 years 12
3.11.4.4 Ageing 6 2 years 12
3.11.4.5 Mechanical endurance 7 2 years 12
3.11.4.6 Resistance to soldering heat 8 2 years 12

3.13 Rework and repair work
3.13.1 Rework
Permitted rework shall be defined in the capability manual and shall be in accordance with
3.11.1 of IEC 61338-1.
3.13.2 Repair work
In accordance with 3.11.2 of IEC 61338-1 repair work is not permitted.
3.14 Quality conformance inspection
3.14.1 General
The manufacturer shall carry out all the tests and inspection requirements specified in the
detail specification for the final component before delivery.

61338-4  IEC:2005 – 15 –
Ranges of waveguide type dielectric resonators can be covered by rules of structural similarity
as set out below and may be grouped together for the purposes of sampling tests.
A lot shall consist of resonators of the same method of construction, though they may be of
different physical sizes, ratings and characteristics.
Variations in the package sealing method may be aggregated for electrical characteristic tests
only.
3.14.2 Custom built dielectric resonators
Inspection requirements for custom built dielectric resonators shall be as specified in the
Customer Detail Specification (CDS), the content of which shall be by agreement between the
manufacturer and his customer in accordance with the blank detail specification.
The manufacturer shall ensure that the requirements of the customer detail specification fall
within the range of his capability approval.
3.14.3 Standard catalogue items
A manufacturer wishing to supply dielectric resonators or a range of dielectric resonators
covered by his capability approval, as a standard catalogue item, shall produce a detail
specification in accordance with the blank detail specification.
The manufacturer shall ensure also that the content of the detail specification complies with 2.2
of this specification.
3.15 Screening procedures
Any screening procedures offered by the manufacture shall be stated in the capability manual.
4 Test and measurement procedures
All test and measurement procedures shall be selected from Clause 4 of IEC 61338-1. If any
required test is not included then it shall be defined in the relevant CQC, customer, or
catalogue item detail specification.

– 16 – 61338-4  IEC:2005
Annex A
(normative)
Example layout of an abstract of description of capability

Certificate number
Issue
Date
Waveguide type dielectric resonators   IEC 61338-1

Manufacturer
Limits of approval
Frequency range
Temperature range
Ageing limits
Climatic category
Mechanical test severities
NOTE The limits above may not all be met concurrently. Refer to manufacturer's data.

61338-4  IEC:2005 – 17 –
Annex B
(normative)
Layout of the front page of a CQC specification for process control

Capability   CQC specification No .
approval No .
Issue .

Capability manual
reference No . Date .

Process control monitor
Process stage
Purpose of check
Specification reference
Capability feature(s) covered by this specification

1 Drawings Include outline and layout drawings as appropriate
or list here the drawing reference numbers.

2 Verification Include all tests, measurements or inspection
requirements with acceptance criteria necessary
to verify the features stated above.

– 18 – 61338-4  IEC:2005
Annex C
(normative)
Layout of the front page of a CQC specification
to demonstrate boundary or limit

Capability   CQC specification No .
approval No .
Issue .

Capability manual
reference No . Date .

Capability qualifying component

Description
Part identity
Manufacturing drawing reference

Capability feature(s) covered by this specification

1 Drawings Include outline and layout drawings as appropriate
or list here the drawing reference numbers.

2 Verification Include all tests, measurements or inspection
requirements with acceptance criteria necessary
to verify the features stated above.

___________
– 20 – 61338-4  CEI:2005
SOMMAIRE
AVANT-PROPOS . 21

1 Généralités . 23
1.1 Domaine d'application . 23
1.2 Références normatives . 23
2 Valeurs assignées et lignes directrices concernant les spécifications particulières . 23
2.1 Valeurs assignées et caractéristiques préférentielles . 23
2.2 Informations à stipuler dans une spécification particulière . 23
3 Agrément de savoir-faire . 24
3.1 Admissibilité à l’agrément de savoir-faire . 24
3.2 Structures similaires . 24
3.3 Procédures d’agrément de savoir-faire . 24
3.4 Description du savoir-faire . 25
3.5 Composants pour l'agrément de savoir-faire (CQC) . 26
3.6 Exigences de contrôle pour les CQC . 26
3.7 Programme d’agrément de savoir-faire . 27
3.8 Rapport d'agrément de savoir-faire . 27
3.9 Résumé de la description des savoir-faire . 27
3.10 Modifications pouvant affecter l'agrément de savoir-faire . 27
3.11 Agrément de savoir-faire initial . 27
3.12 Maintenance de l’agrément de savoir-faire . 33
3.13 Retouche et réparation. 34
3.14 Contrôle de conformité de la qualité . 34
3.15 Procédures de déverminage . 35
4 Procédures d’essai et de mesure . 35

Annexe A (normative) Exemple de présentation d'un extrait de description de savoir-
faire . 36
Annexe B (normative) Présentation de la page de couverture d'une spécification CQC
pour le contrôle des processus . 37
Annexe C (normative) Présentation de la page de couverture d'une spécification CQC
pour démontrer les limites . 38

Figure 1 – Sélection des CQC . 29
Figure 2 – Plan d'essai pour les CQC, processus de frittage . 30
Figure 3 – Plan d'essai pour le dépôt des CQC à matériau d'électrode . 31
Figure 4 – Plan d'essai pour les CQC, performances des résonateurs . 31
Figure 5 – Plan d'essai pour les CQC, performances climatiques . 32
Figure 6 – Plan d'essai pour les CQC, humidité . 32
Figure 7 – Plan d'essai pour les CQC, vieillissement. 32
Figure 8 – Plan d'essai pour les CQC, endurance mécanique . 33
Figure 9 – Plan d'essai pour la résistance aux CQC, chaleur de brasage . 33

Tableau 1 – Essais périodiques pour la maintenance de l'agrément de savoir-faire . 34

61338-4  CEI:2005 – 21 –
COMMISSION ÉLECTROTECNIQUE INTERNATIONALE
____________
RÉSONATEURS DIÉLECTRIQUES À MODES GUIDÉS –

Partie 4: Spécification intermédiaire

AVANT-PROPOS
1) La CEI (Commission Électrotechnique Internationale) est une organisation mondiale de normalisation
composée de l'ensemble des comités électrotechniques nationaux (Comités nationaux de la CEI). La CEI a
pour objet de favoriser la coopération internationale pour toutes les questions de normalisation dans les
domaines de l'électricité et de l'électronique. A cet effet, la CEI – entre autres activités – publie des Normes
internationales, des Spécifications techniques, des Rapports techniques, des Spécifications accessibles au
public (PAS) et des Guides (ci-après dénommés "Publication(s) de la CEI"). Leur élaboration est confiée à des
comités d'études, aux travaux desquels tout Comité natio
...