January 16, 2012

EEE List Materials - Processes - PA-5

Inventory the EEE components, materials and processes used in manufacturing

A. Scope

The lists are an inventory of the EEE components, the materials and the processes that are specific to the product.

The information given shall provide the means of judging whether the EEE components, materials and processes are suitable for the application being considered.

The constitution of the lists of EEE components is based on RNC document « RNC-CNES-Q-HB-70-501 Etablissement et gestion des listes matériaux, composants mécaniques, procédés et des documents justificatifs associés »

The lists of EEE components, Materials and Processes are established using unique formats, and evolve according to the progress of the project.

The preliminary lists are generated from the product specifications, as defined in the Technical Specification (STB) (refer to E 2).

The final lists correspond to the Definition File (refer to E 4) of the product concerned.

B. Standard content of the list of EEE components

1. Scope

This section contains the general information which defines the product concerned, the corresponding phase, and the project to which it is attached.

2. Reference documentation

This consists of the bibliography required to prepare the list, particularly the references of the lower level lists, where applicable.

3. List of Abbreviations

The following abbreviated terms defined and used within the list of EEE components are explained here-after :

CPPACentralised Parts Procurement Agent
DCLDeclared Components List
DPADestructive Physical Analysis
EEEElectrical, Electronic, Electromechanical
EPPLEuropean Preferred Parts List
ESCCEuropean Space Components Coordination
JDJustification Document (document incluant les data collectées, l'analyse de risque, les dispositions de réduction de risque et les résultats)
LATLot Acceptance Test
LVTLot Validation Testing
PADPart Approval Document
QCIQuality Conformance Inspection
QMLQualified Manufacturers List
QPLQualified Parts List
TCITechnology Conformance Inspection
RVTRadiation Verification Testing"

 

4. Coverage

This section shall briefly describe the product concerned and the equipment taken into account to prepare the list, and the state of knowledge of each of the lists of the lower level.

5. How to use the form

5.1 Definition of sections

Project: name of project (or of experiment)

Subassembly name of subassembly

Equipment: name of equipment

Family:

01 - Capacitors
02 - Connectors
03 - Crystals
04 - Diodes
05 - Filters
06 - Fuses
07 - Inductors
08 - Microcircuits
09 - Relays
10 - Resistors
11 - Thermistors
12 - Transistors
13 - Wires and Cables
14 - Miscellaneous

5.2 Definition of fields

Refer to the list of EEE components sheet PAF-4

C. Standard content of the list of materials

1. Scope

This section contains the general information which defines the product concerned, the corresponding phase, and the project to which the materials are attached.

2. Reference documentation

This consists of the bibliography required to prepare the list, particularly the references of the sub contractor lists.

3. Glossary

The terminology and acronyms used in the document shall be explained in this section.

4. Coverage

This section shall briefly describe the materials concerned and the equipment taken into account to prepare the list, and also the state of knowledge of each of the lists of the lower level.

5. Codification of subassemblies and equipment

This paragraph shall state the rules used for the subassemblies, equipment and suppliers:

  • Subassembly: abbreviation for the subassembly
  • Equipment: abbreviation for the equipment
  • Suppliers: abbreviation for the material supplier.

 

6. How to use the form

The following sections propose the codification rules used by CNES. They can be recalled at the time of the first issue of the list of materials.

6.1 Codification of materials

FAMILY: (per RNC-ECSS-Q-ST-70)

Similar materials shall be grouped together in the following groups:

01 - Aluminium and aluminium alloys
02 - Copper and copper alloys
03 - Nickel and nickel alloys
04 - Titanium and titanium alloys
05 - Steels
06 - Stainless steels
07 - Filter metal : welding brazing soldering
08 - Miscellaneous metallic materials
09 - Optical materials
10 - Adhesives, coatings, varnishes
11 - Adhesive tapes
12 - Paints, primers and inks
13 - Lubricants
14 - Potting compound, sealants and foams
15 - Reinforced plastics (including PCBs)
16 - Rubbers and elastomers
17 - Thermoplastic (e.g. non adhesive tapes and foils (MLI))
18 - Thermoset plastics (including PCBs)
19 - Wires and cables (material aspects)
20 - Miscellaneous non-metallic materials (e.g. ceramics)

6.2 Codification of the environment

The codes defined below are to be used to indicate the type of environment to which the material is subjected.

"Radiation" (R') code
CodeMeaning
G
L
B
I
P
Geostationary orbit
Low Orbit
Radiation belt
Interplanetary
Planetary

 

For components on the outside of the satellite, add "S" (Shadow) if the material is in the "shadow" area of "L" (Light) is the material is in the sunlit area.

"Ambiance" (A) code
CodeMeaning
V
H
M
E
Vacuum
Hermetic
Manned
Elevated Pressure

 


"Temperature" (T) code
CodeMeaning
1
2
3
...
0 to 100 K
101 to 200 K
201 to 300 K
...

 

Thermal cycling to be indicated by two values, e.g. 3/5.

6.3 "SIZE" codification

The "Size" code is indicated by an alphanumeric combination such as A5. V2 or M3 where:

A is the area in cm2
V is the volume in cm3
M is the mass in (g)

"Size" code
CodeMeaning
0
1
2
3
4
0 < A or V or M ≤ 1
1 < A or V or M ≤ 10
10 < A or V or M ≤ 100
100 < A or V or M ≤ 1000
...

 

6.4 "TEST" data codification

"Outgassing" code
CodeMeaning
PMaterial which has passed the detailed outgassing tests described in detail in document "RNC-ECSS-Q-ST-70-02"
FMaterial outside specification
UUnknown characteristics

 


"Flammability" code
CodeMeaning
PMaterial which has passed the detailed flammability tests described in detail in document "RNC-ECSS-Q-ST-70-21"
FMaterial outside specification
UUnknown characteristics

 


"offgazing" code
CodeMeaning
PMaterial which has passed the detailed toxicity tests described in detail in document "RNC-ECSS-Q-ST-70-29"
FMaterial outside specification
UUnknown characteristics

 


"Stress-corrosion" code
CodeMeaning
1The material is listed in Table I of document RNC-ECSS-Q-ST-70-36A
2The material is listed in Table II of document RNC-ECSS-Q-ST-70-36A
3The material is listed in Table III of document RNC-ECSS-Q-ST-70-36A
PMaterial compliant with the requirements of the project, but not mentioned in ECSS Q 70 36A (the test ref. is mandatory)
FMaterial outside specification
UUnknown characteristics

 


"Corrosion" code
CodeMeaning
PMaterial compliant with the requirements of the project
FMaterial outside specification
UUnknown characteristics

 

Standard MIL-STD-889 fives the EMF values for couples of metallic materials, and Standard MSFC SPEC-250 gives the test method.

6.5 Approval codes

The codes concern:

  • the comment of the user laboratory or subcontractor on the use of the material concerned;
  • the comment of the "higher level" (i.e. the supervisor of the instrument, in charge of approving the list).

 

"Approval" code
CodeMeaning
AApproved:
Unrestricted utilisation.
XApproved with restriction:
The material shall be subject to an evaluation or validation programme,
Approbation reference report shall be entered as a comment.
WApproved with concession:
The material does not meet the requirements, but there is no possible replacement, Utilisation must be reduced,
Concession reference shall be entered as a comment.
PDecision pending:
Material for which an approbation report or a concession is necessary.
OOpen:
New material for which an investigation or a validation are in progress.
RRejected
DDeleted:
Material, which is no longer used.

 

6.6 Definition of the fields in the DML list

The list of material components consists of 10 columns filled in as follows (see also list of materials).

GNS_UK_AP5.jpg

 

(1) For metal alloys, the AA system is recommended for aluminium alloys and the AISI system is recommended for steels; for other metals and alloys, the main constituents are entered, except in the case of standard designations (brass and bronze).

D. Standard content of the list of processes

1. Scope

This section contains the general information which defines the processes concerned, the corresponding phase, and the project to which the processes are attached.

2. Reference documentation

This consists of the bibliography required to prepare the list, particularly the references of the sub contractor lists.

3. Glossary

The terminology and acronyms used in the document shall be explained in this section.

4. Coverage

This section shall briefly describe the processes concerned and the subassemblies taken into account to prepare the list, and the state of knowledge of each of the lists of the lower level.

5. Codification of subassemblies and equipment

This paragraph shall state the rules used for the subassemblies, equipment and suppliers:

  • Subassembly: abbreviation of subassembly
  • Equipment: abbreviation of equipment
  • Suppliers: abbreviation of material supplier.

 

6. How to use the form

6.1 Groups

Processes are classified in 17 groups (per RNC-ECSS-Q-ST-70) :

01 - Adhesive Bonding
02 - Manufacture of composites
03 - Potting, moulding
04 - Painting, coating
05 - Cleaning
06 - Welding, brazing
07 - Crimping, stripping, wire-wrapping
08 - Soldering
09 - Surface treatments
10 - Plating
11 - Machining
12 - Forming
13 - Heat treatments
14 - Special manufacture, processes developed specifically for the programme
15 - Marking
16 - Miscellaneous processes
17 - Inspection procedures

6.2 Approval codes

The codes concern:

  • The comment of the user laboratory or subcontractor on the use of the process concerned,
  • The comment of the "higher level" (i.e. the supervisor of the instrument, in charge of approving the list).

 

"Approval" code
CodeMeaning
AApproved:
Unrestricted utilisation.
XApproved with restriction:
The material shall be subject to an evaluation or validation programme,
Approbation reference report shall be entered as a comment.
WApproved with concession:
The material does not meet the requirements, but there is no possible replacement, Utilisation must be reduced,
Concession reference shall be entered as a comment.
PDecision pending:
Material for which an approbation report or a concession is necessary.
OOpen:
New material for which an investigation or a validation are in progress.
RRejected
DDeleted:
Material, which is no longer used.

 

6.3 Definition of the fields in the DPL list

The list of processes consists of 10 columns which shall be filled in as shown below.

If any particular point is not applicable, write N.A, for "Not Applicable".

GNS_UK_AP5-0.jpg

 

E. Standard content of the mechanical parts list report

1. Scope

This section contains the general information that defines mechanical parts concerned, the corresponding phase and the project to which the mechanical parts are attached.

2. Reference documentation

This consists of the bibliography required to prepare the list, particularly the references of the sub contractor lists.

3. Glossary

The terminology and acronyms used in the document shall be explained in this section.

4. Coverage

This section shall briefly describe the mechanical parts concerned and the subassemblies taken into account to prepare the list, and the state of knowledge of each of the lists of the lower level.

5. Codification of subassemblies and equipment

This paragraph shall state the rules used for the subassemblies, equipment and suppliers:

  • Subassembly: abbreviation of subassembly
  • Equipment: abbreviation of equipment
  • Suppliers: abbreviation of material supplier.

 

6. How to use the form

The following sections propose the codification rules used by CNES. They can be recalled at the time of the first issue of the mechanical parts list.

6.1 Codification of Materials

Mechanical parts are classified in 11 groups (per RNC-ECSS-Q-ST-70) :

51- Spacing parts (e.g. washers and spacers)
52- Connecting parts (e.g. bolts, nuts, rivets, Inserts and clips)
53- Bearing parts (e.g. ball bearings and needle bearings)
54- Separating parts (e.g. pyrotechnics, springs and cutters)
55- Control parts (e.g. gears)
56- Fluid handling parts (e.g. diffusers)
57- Heating parts
58- Measuring instruments (e.g. gauges and thermocouples)
59- Optical passive equipment
60- Magnetic parts
61- Other parts

6.2 Codification of the environment

The codes defined below are to be used to indicate the type of environment to which the mechanical part is subjected.

"Radiation" (R) code
CodeMeaning
GGeostationary orbit
LLow orbit
BRadiation belt
IInterplanetary
PPlanetary

 

For components on the outside of satellite, add "S" (Shadow) if the material is in the "shadow" area of "L" (Light) is the material is the sunlit area.

"Ambiance" (A) code
CodeMeaning
VVacuum
HHermetic
MManned
EElevated Pressure

 


"Temperature" (T) code
CodeMeaning
10 to 100 K
2101 to 200 K
3201 to 300 K
......

 

Thermal cycling to be indicated by two values, e.g. 3/5.

6.3 Approval codes

The codes concern:

  • The comment of the laboratory or subcontractor on the use of the mechanical part concerned,
  • The comment of the "higher level" (i.e. the supervisor of the instrument, in charge of approving the list).

 

"Approval" code
CodeMeaning
AApproved:
Unrestricted utilisation.
XApproved with restriction:
The material shall be subject to an evaluation or validation programme,
Approbation reference report shall be entered as a comment.
WApproved with concession:
The material does not meet the requirements, but there is no possible replacement, Utilisation must be reduced,
Concession reference shall be entered as a comment.
PDecision pending:
Material for which an approbation report or a concession is necessary.
OOpen:
New material for which an investigation or a validation are in progress.
RRejected
DDeleted:
Material, which is no longer used.

 

6.4 Definition of the fields in the DMPL list

The mechanical parts list consists of 10 columns filled in as follows. If any particular point is not applicable, write N.A, for "Not Applicable".

GNS_UK_AP5-1.jpg

 

Risks

RisksInappropriateness of product for its application
 RecommandationsMAKE A LIST OF ALL COMPONENTS, MATERIALS, PROCESSES
IDENTIFY CRITICALITIES
List of EEEs
List of Materials
List of Processes

 

Forms

Activities / documentation

Published in: