ECSS-Q-ST-70: Materials, Mechanical Parts and Processes

1. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 1 ECSS-Q-ST-70: Materials, Mechanical Parts and Processes Dr. Antonius de Rooij Head of Materials Technology Section Materials and Components Technology Division Product Assurance and Safety Department

2. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 2

3. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 3 THE REQUIREMENTS RELATED TO MATERIALS, MECHANICAL PARTS AND PROCESSES

4. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 4 ECCS Specification Related to PMP Level 2 standard ECSS-Q-ST-70C-March 2009 Space Product Assurance - Materials, Mechanical Parts and Processes. The purpose of this standard is to define the requirements and statements applicable to Materials, Mechanical Parts and Processes to satisfy the mission performance requirements. This standard also provides details concerning the documentation requirements and the procedures relevant to obtaining approval for the use of PMP in the fabrication of Space Systems and associated equipment.

5. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 5 European Co-operation for Space Standardisation (ECSS) 1. For materials and processes the situation is presently as follows: Thirty-one specifications have been issued as a ECSS level 3 Specification ECSS-Q-ST-70-01C Cleanliness and contamination control ECSS-Q-ST-70-02C Thermal vacuum outgassing test for the screening of space materials ECSS-Q-ST-70-03C Black-anodising of metals with inorganic dyes ECSS-Q-ST-70-04C Thermal Cycling test for the Screening of space materials and processes ECSS-Q-ST-70-05C Detection of organic contamination of surfaces by IR spectroscopy ECSS-Q-ST-70-06C Particle and UV radiation testing for space materials ECSS-Q-ST-70-07C Automatic machine wave soldering (in process) ECSS-Q-ST-70-09C Measurement of thermo-optical properties of thermal control materials ECSS-Q-ST-70-08C The manual soldering of high reliability electrical connections ECSS-Q-ST-70-10C Qualification of printed circuit boards ECSS-Q-ST-70-11C Procurement of printed circuit boards ECSS-Q-ST-70-13C The Peel and Pull Off Strength of Adhesives ECSS-Q-ST-70-18C Preparation, assembly and mounting of RF coaxial cables ECSS-Q-ST-70-20C Determination of the susceptibility of silver-plated copper wire and cable to plague corrosion ECSS-Q-ST-70-21C Flammability testing for the screening of space materials (in process) ECSS-Q-ST-70-22C The control of limited shelf-life materials ECSS-Q-ST-70-26C Crimping of high-reliability electrical connections

6. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 6 European Co-operation for Space Standardisation (ECSS) 2. ECSS-Q-ST-70-28C Repair and modification of PCB assemblies ECSS-Q-ST-70-29C Offgassing Testing of Materials ECSS-Q-ST-70-30C Wire-wrapping of high reliability electrical connections ECSS-Q-ST-70-31C Application of paints on space hardware ECSS-Q-ST-70-36C Materials selection for controlling stress corrosion ECSS-Q-ST-70-37C Test method for stress corrosion cracking ECSS-Q-ST-70-38C High-reliability soldering for surface mount and mixed technology ECSS-Q-ST-70-45C Mechanical testing of metallic materials ECSS-Q-ST-70-46C rev.1 General requirements for procurement of threaded fasteners ECSS-Q-ST-70-53C Materials and hardware compatibility tests for sterilization processes ECSS-Q-ST-70-55C Microbial examination of flight hardware and cleanrooms ECSS-Q-ST-70-58C Bioburden control of cleanrooms ECSS-Q-70-71A rev.1 Data for selection of space materials An additional six specifications are in various stages of preparation. ECSS-Q-ST-70-12C Design rules for PCB ECSS-Q-ST-70-50C Particle contamination monitoring for spacecraft systems and cleanrooms ECSS-Q-TM-70-51C Termination of optical fibres ECSS-Q-ST-70-54C Ultra cleaning of flight hardware ECSS-Q-ST-70-56C Vapor phase hydrogen peroxide bioburden reduction for flight hardware ECSS-Q-ST-70-57C Dry heat bioburden reduction for flight hardware

7. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 7 Terms specific to the present standard critical material material that is new to an individual company or non-validated for the particular application and environment, or that has caused problems during previous use that remain unresolved critical mechanical part mechanical part that requires specific attention or control due to fracture mechanics aspects and limited-life aspects, or with which the supplier has no previous experience of using the mechanical part in the specific application and environment or that are new or non-qualified, or that has caused problems during previous use that remain unresolved

8. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 8 Terms specific to the present standard process set of inter-related resources and activities which transforms a material or semi-finished product into a semi-finished product or final product critical process process new to an individual company or non-verified for the application in question or has caused problems during previous use that remain unresolved special process process where quality cannot be completely ensured by inspection of the end article only

9. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 9 Steps to be taken to get approval for materials, mechanical parts andprocesses (MMPP)

10. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 10 THE REQUIREMENTS GENERAL The supplier shall prepare, maintain and implement a MMPP plan, as part of the overall PA plan in conformance to ECSS-Q-ST-10 and this Standard or as a separate document. Establishing and processing of lists Each supplier and sub-supplier shall establish, collect, review and deliver the declared materials, mechanical parts and processes lists including all the items intended for use in the flight equipment. Management of the lists The MMPP manager is responsible within the programme to ensure that all the information needed is given and that the approval status is consistent with technical and scheduling objectives and data is exchangeable. The supplier shall process the lists of lower level suppliers to ensure exchangeabililty, searchability, sortability, storability and retrievability for that set of lists, before submitting it to the customer. The lists shall reflect the current design at the time of issue. maximum use of the materials and processes described in approved data sources and items already approved on similar projects; An analysis of the criticality of these preliminary lists shall, after checking the conformity of the materials, mechanical parts and processes, against all the project requirements, allow them to be classified into three categories: 1. Critical items, subject to evaluation, validation, qualification, or verification programmes. 2. Items that are not critical but which do not conform to one or more project requirements (a justified deviation request should be drafted for this category). 3. Non-critical items. For critical items a request for approval shall be submitted The materials of, for example, screws and nuts that are made up of a few materials can be listed in the DMPL. The materials (metals and plastics) of complex parts can be listed in the DML with, for example, outgassing, toxicity, flammability, corrosion and stress corrosion values and reference to the DMPL item. The lists shall reflect the current design at the time of issue. maximum use of the materials and processes described in approved data sources and items already approved on similar projects; An analysis of the criticality of these preliminary lists shall, after checking the conformity of the materials, mechanical parts and processes, against all the project requirements, allow them to be classified into three categories: 1. Critical items, subject to evaluation, validation, qualification, or verification programmes. 2. Items that are not critical but which do not conform to one or more project requirements (a justified deviation request should be drafted for this category). 3. Non-critical items. For critical items a request for approval shall be submitted The materials of, for example, screws and nuts that are made up of a few materials can be listed in the DMPL. The materials (metals and plastics) of complex parts can be listed in the DML with, for example, outgassing, toxicity, flammability, corrosion and stress corrosion values and reference to the DMPL item.

11. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 11 THE REQUIREMENTS - Continued Supplier role and responsibilities The supplier shall obtain the correct and complete lists from lower level suppliers; provide provisional and, later, definitive approval for each list; submit the project declared lists for approval prior to initiation of the hardware phase (before critical design review). The lists established by the suppliers shall include all the information described in this Standard. Amendments to the lists shall be implemented only through established change procedures. The following documentation shall be delivered to the customer upon request: RFA (reference and issue); evaluation reports; deviation requests. The material, mechanical parts or process justification files shall be made available to the customer upon request either on the supplier site, or by any other process agreed by both parties.

12. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 12 THE REQUIREMENTS - Continued CLEANLINESS/CONTAMINATION CONTROL The supplier shall establish and maintain a contamination and cleanliness control programme including, as a minimum: cleaning procedures, Cleanliness-monitoring procedures or methods. For cleanliness- or contamination-critical applications, a requirement specification (chemical and particle) and a specific cleanliness control plan and shall be established

13. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 13 Material Approval MMPP which cannot be considered either space proven or standard/established shall be subjected to an evaluation programme in order to assess their suitability for the intended application. This programme and subsequently its result shall be submitted to ESA

14. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 14 Evaluation Programme Tests dependent on the project requirements, i.e. reproducing accurately the conditions to which the material will be subjected in space or prior to launch Main tests, e.g., thermal vacuum, thermal cycling, radiation, stress corrosion, flammability, offgassing and toxic analysis and atomic oxygen erosion resistance Supplementary tests, e.g. electrical conductivity, optical characteristics, thermo-mechanical...

15. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 15 Material Evaluation

16. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 16 Material Evaluation level 1

17. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 17 Overview Level 1 tests

18. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 18 Material Evaluation Level 2

19. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 19 Material Evaluation Level 3

20. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 20 THE REQUIREMENTS (1) Thermal Vacuum Products considered for use in space systems shall have their outgassing properties assessed by thermal vacuum tests according to ECSS-Q-ST-70-02C. Thermal Cycling Products which are likely to be subjected to thermal stresses shall have their thermal cycling properties assessed as per ECSS-Q-ST-70-04C. Materials selection shall be made in conformance with ECSS-Q-ST-70-71. b. Outgassing tests shall be carried out in conformance with ECSS-Q-ST-70-02. NOTE The need for retest of materials used for an extended period of time at a temperature higher than 50 °C should be mutually agreed with the customer. Materials subject to thermal cycling shall be assessed for their ability to withstand induced thermal stress. b. The following materials shall be tested in conformance with ECSS-Q-ST- 70-04: 1. Materials susceptible to thermal vacuum effect. NOTE For a non-exhaustive list of such materials, see ECSS-Q-ST-70-04 Clause 1. 2. Materials of unknown characteristics in respect to thermal vacuum. c. Materials subject to thermal cycling other than those covered by 5.1.3b, shall be tested in accordance with a procedure approved by the customer. Materials selection shall be made in conformance with ECSS-Q-ST-70-71. b. Outgassing tests shall be carried out in conformance with ECSS-Q-ST-70-02. NOTE The need for retest of materials used for an extended period of time at a temperature higher than 50 °C should be mutually agreed with the customer. Materials subject to thermal cycling shall be assessed for their ability to withstand induced thermal stress. b. The following materials shall be tested in conformance with ECSS-Q-ST- 70-04: 1. Materials susceptible to thermal vacuum effect. NOTE For a non-exhaustive list of such materials, see ECSS-Q-ST-70-04 Clause 1. 2. Materials of unknown characteristics in respect to thermal vacuum. c. Materials subject to thermal cycling other than those covered by 5.1.3b, shall be tested in accordance with a procedure approved by the customer.

21. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 21 THE REQUIREMENTS (2) Radiation Products which will be exposed to particle/UV radiation shall be assessed to determine their ability to withstand the type and degree of radiation dosage expected during the mission. Tests are specified in ECSS-Q-ST-70-06C. Stress Corrosion Products intended for structural applications and likely to be exposed to long term terrestrial storage, or flown on the STS, or used in launchers shall possess a high resistance to SCC. Structural products of a metallic nature shall be selected from the preferred list in Table 1 of ECSS-Q-ST-70-36C. Where no data exists testing shall be performed as per ECCS-Q-ST-70-37C. Materials used on the spacecraft external surfaces shall be assessed in conformance with ECSS-Q-ST-70-06 in order to determine their resistance to the radiation dosage expected during the mission. Materials used for structural and load-bearing applications (subject to tensile stress) shall be chosen in conformance with ECSS-Q-ST-70-36. b. Any material not covered by standard ECSS-Q-ST-70-36 shall be tested in conformance with ECSS-Q-ST-70-37. Materials used on the spacecraft external surfaces shall be assessed in conformance with ECSS-Q-ST-70-06 in order to determine their resistance to the radiation dosage expected during the mission. Materials used for structural and load-bearing applications (subject to tensile stress) shall be chosen in conformance with ECSS-Q-ST-70-36. b. Any material not covered by standard ECSS-Q-ST-70-36 shall be tested in conformance with ECSS-Q-ST-70-37.

22. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 22 THE REQUIREMENTS (3) Flammability Products considered for use in unmanned spacecraft to be launched by the STS and manned spacecraft (including those of the spacecraft itself, stored equipment or payload/experiments) shall be evaluated for flammability resistance in the most hazardous environment Flammability testing is described in ECSS-Q-70-21A. Offgassing and Toxic analysis All products considered for use in the crew compartment of manned spacecraft shall be evaluated for offgassing and odour. Samples of each product shall be tested according to ECSS-Q-ST-70-29C. Spacecraft and associated equipment shall be manufactured from materials and by processes that do not cause a hazard to personnel or hardware, whether on the ground or in space. b. ECSS-Q-ST-70-29 shall apply for the characterization of offgassing products. NOTE MAPTIS and MIL-HDBK-454 test method is not space relevant. The materials flammability resistance shall be evaluated in conformance with ECSS-Q-ST-70-21 for the most hazardous environment envisaged for their use. NOTE For NASA STS payloads see NASA STD-6001. Spacecraft and associated equipment shall be manufactured from materials and by processes that do not cause a hazard to personnel or hardware, whether on the ground or in space. b. ECSS-Q-ST-70-29 shall apply for the characterization of offgassing products. NOTE MAPTIS and MIL-HDBK-454 test method is not space relevant. The materials flammability resistance shall be evaluated in conformance with ECSS-Q-ST-70-21 for the most hazardous environment envisaged for their use. NOTE For NASA STS payloads see NASA STD-6001.

23. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 23 THE REQUIREMENTS (3) Atomic Oxygen All products considered for use on the external surface of spacecraft intended for low-orbit operations shall be evaluated for their resistance to atomic oxygen erosion. Proposed tests shall be subject to ESA approval. Supplementary tests The Contractor shall review his MMPP programme for particular Project requirements and add any other test as relevant. These tests are subject to ESA approval. All materials considered for use on the external surfaces of spacecraft intended for use in Low Earth Orbit (LEO) altitudes (between 200 km and 700 km) shall be evaluated for their resistance to atomic oxygen (ATOX). Test procedures shall be subject to the approval of the customer. All materials considered for use on the external surfaces of spacecraft intended for use in Low Earth Orbit (LEO) altitudes (between 200 km and 700 km) shall be evaluated for their resistance to atomic oxygen (ATOX). Test procedures shall be subject to the approval of the customer.

24. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 24 MATERIAL/MECHANICAL PART ENGINEERING SELECTION The Contractor shall be responsible for the selection and for demonstrating that they are capable of meeting the operating, environmental, physical, chemical, safety, quality and reliability conditions defined in the relevant specifications and in the contract. SELECTION OF SPACE-PROVEN MATERIALS Well known materials/mechanical parts for which test data applicable to the space environment are available or which have been previously used in space, or similar, applications shall be selected wherever possible. However each material/mechanical part and its applications for a given Project shall be considered separately. SELECTION OF OTHER MATERIALS Request for approval (RFAs) of material/mechanical parts which do not meet the requirements of 2) above shall be submitted to ESA. The format and content of the RFA is given in ECSS-Q-ST-70C. This can be modified by a Project (subject to approval) if the specific requirements of the Project make this necessary. Materials shall be chosen giving preference to the following: those successfully used for an identical application in other space programmes similar with respect to environment constraints and lifetime to the proposed application; those for which satisfactory evaluation results are obtained on samples representative of the application with a sufficient margin as regards conditions of use; those included in approved data sources. NOTE For example: ECSS-Q-ST-70-71, ESA and NASA data banks. Whether the materials are already validated or remain to be validated, their selection shall take into account the following criteria: 1. continuity of supply; 2. reproducibility of characteristics. Pure tin finish with more than 97 % purity shall not be used. NOTE This is due to the possibility of whisker growth and transformation to grey tin powder at low temperatures. b. The incoming inspection of each component batch shall include the verification of the termination composition (to avoid assembly of pure tin finish). Materials shall be chosen giving preference to the following: those successfully used for an identical application in other space programmes similar with respect to environment constraints and lifetime to the proposed application; those for which satisfactory evaluation results are obtained on samples representative of the application with a sufficient margin as regards conditions of use; those included in approved data sources. NOTE For example: ECSS-Q-ST-70-71, ESA and NASA data banks. Whether the materials are already validated or remain to be validated, their selection shall take into account the following criteria: 1. continuity of supply; 2. reproducibility of characteristics. Pure tin finish with more than 97 % purity shall not be used. NOTE This is due to the possibility of whisker growth and transformation to grey tin powder at low temperatures. b. The incoming inspection of each component batch shall include the verification of the termination composition (to avoid assembly of pure tin finish).

25. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 25 MATERIAL/MECHANICAL PART ENGINEERING (2) DECLARED MATERIAL LIST (DML)/DECLARED MECHANICAL PARTS LISTS (DMPL) The Contractor shall establish a consolidated DML and DMPL of all items used in the system. Notes: The project may decide not to consolidate the lists but to compile an assembly of Lists per Configuration item. The Project may decide not to require a separate DMPL. In this case the items are added to the DML; The format and content of the DML/DMPL is given in ECSS-Q-ST-70C. This can be modified by a Project (subject to approval) if the specific requirements of the Project make this necessary. Amendments to the DML/DMPL shall only be implemented through established change procedures.

26. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 26 MATERIAL/MECHANICAL PART ENGINEERING (3) SPECIFICATIONS/STANDARDS Each type of material/mechanical part used by the Contractor and listed in the DML/DMPL shall be covered by a specification or standard. NON-CONFORMANCES Non-conforming materials/mechanical parts found during incoming inspections, assembly or test shall be dispositioned in accordance with ECSS-Q-ST-20C.

27. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 27 PROCESS ENGINEERING SELECTION The Contractor shall be responsible for the selection of processes and for demonstrating that they are capable of meeting the requirements as defined in the applicable Specifications and in the contract. The Contractor and sub-contractor shall plan and enforce an effective process control programme. ESA reserves the right to audit critical processing lines. STANDARD/ESTABLISHED PROCESSES Standard processes shall be selected whatever possible. Critical processes, unless performed in accordance with ECSS-Q-ST-70-XX series documents shall require further identification and approval before use.

28. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 28 PROCESS ENGINEERING (2) NONASSESSED PROCESSES RFAs for processes for which there is no known previous history shall be fully justified and be subjected to an evaluation programme. The process identification and approval documents, defined in ECSS-Q-ST-70C, shall be submitted to ESA. DECLARED PROCESSES LIST (DPL) The Contractor shall establish a DPL of all processes used in the programme. The format and content of such a DPL is given in ECSS-Q-ST-70C. Amendments to the DPL shall be implemented only through established change procedure.

29. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 29 PROCESS ENGINEERING (3) PROCESS SPECIFICATION/STANDARD Each process shall be covered by a process specification or standard. Maximum use shall be made of existing ESA Specifications/standards and ESA approved Specifications/standards produced by international organizations and nations agencies. PROCESS WORKMANSHIP STANDARDS The Contractor shall provide detailed workmanship standards for processes to aid operators and inspectors in the establishment of accept/reject criteria.

30. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 30 PROCESS ENGINEERING (4) CRITICAL PROCESSES Critical Processes shall be subject to stringent controls in form of documentation, QA supervision. and final inspection/test. Critical processes shall be defined by the Contractor in the early phase of the contract. NON CONFORMANCES Any unsatisfactory performance or non conformance which is observed shall be dispositioned in accordance with ECSS-Q-ST-20C. TRAINING The Contractors shall establish a training programme for all critical process operators and inspectors.

31. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 31 THE DOCUMENTATION REQUIREMENTS See also http://esmat.esa.int/ESA_Tool

32. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 32 MMPP documents delivery w.r.t. milestones

33. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 33 CONTENTS OF THE DECLARED MATERIALS LIST Aluminium and aluminium alloys Copper and copper alloys Nickel and nickel alloys Titanium and titanium alloys Steels Stainless steels Filler metals : welding, brazing, soldering Miscellaneous metallic materials Optical materials Adhesives, coatings, varnishes Adhesive tapes Paints and inks Lubricants Potting compounds, sealants, foams Reinforced plastics Rubbers and elastomers Thermoplastics (non adhesive tapes, foils (MLI),...) Thermoset plastics Wires and cables (for materials aspects only) Miscellaneous nonmetallic materials (ceramics...)

34. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 34 Example of DML

35. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 35 CONTENT of DML COLUMN 1: Item number Identification number in each group. One only per material type. Does not change during the life of the materials list (sub-items permitted when deemed necessary). COLUMN 2: Commercial identification Trade name and number (to be completed in full) e.g. “ARALDITE AV 100". Correct and standard designation. ESA has chosen: Trade name + number. For example, "ARALDITE AY 105" If no trade name exists, then the manufacturer's name plus number are entered; e.g. "SCHOTT BK7“ In the case of metal alloys, the AA system is recommended for aluminium alloys, and the AISI system for steels ; for other metals or alloys, the main constituent will be entered first except in the case of a traditional name (e.g. brass or bronze). For each material as designated above, a unique item number shall be given. If several lines are used for different applications and/or processing, sub-item numbers shall be added.

36. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 36 CONTENT of DML, cont… COLUMN 3: Chemical nature and type of product Example: epoxy resin, polyurethane adhesive, or Ti6AI4V alloy. COLUMN 4: Procurement information Manufacturer/supplier: name of the manufacturer and name of the supplier if different. Specification: reference of the procurement specification with, if considered useful, issue and revision. It may be replaced by a national specification number if this exists and makes source of procurement irrelevant. COLUMN 5: Processing parameters (summary): Give as relevant: mixture proportions, cure temperature, special cleaning agent, surface treatment, thermal treatment, temperature, etc.. NOTE: Specification number is required, but not sufficient for ESA purposes.

37. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 37 CONTENT of DML, cont… COLUMN 6: Use and location Indicate in what subsystems, box or item the material is used and whether it acts as structural element, thermal control, electrical insulation etc. as relevant. COLUMN 7: Environmental code

38. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 38 CONTENT of DML, cont… COLUMN 8: Size code Choose an alphanumeric combination from the above mentioned table, e.g. A5 or V2 or W3.

39. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 39 CONTENT of DML, cont… COLUMN 9 All the codes of Column 9 shall be relevant for the project concerned, which implies that they refer to validated data applicable to this project (not too old, same processing, same composition, QC tests run on the same procured lot, etc.) . Reference of test report and relevant test result code to be given in Subcolumn 9.1. SUBCOLUMN 9.1 Outgassing (OUT): P- The material passed the outgassing test detailed in ECSS-Q-70-02 . Reference of test report to be given in Subcolumn 9.2. F- The material failed . Waiver reference in Subcolumn 9.2. U- Materials of which outgassing characteristics are unknown. Stress Corrosion Cracking (SCC): A- The material is known to have a high resistance to SCC. Table I document ECSS-Q-70-36 B- Table II and III document ECSS-Q-70-36. Justification for approval (test reference) stated in Subcolumn 9.2 (generally making reference to ECSS-Q-70-36). U- Materials and / or weldments for which SCC characteristics are unknown. An SCC evaluation form is required, based if necessary on tests (see ECSS-Q-70-37 ).

40. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 40 CONTENT of DML, cont… Corrosion (Corr.) A- The material does not require a surface treatment or coating for its intended application, otherwise it shall be rated B. B- Details of the surface treatment to be given in Column 5. Flammability (Flamm.) (if applicable): P- The material passed the requirements of document ESA PSS-01 -721. F- The material failed the test of document ESA PSS-01 -721 in the applicable atmosphere. Waiver reference in Subcolumn 9.2. U- Materials of which characteristics are unknown. Offgassing (OFF) (if applicable): P- The material passed the requirements of document ESA PSS-01 -729. F- The material failed : waiver reference in Subcolumn 9.2 U- Materials of which offgassing characteristics are unknown.

41. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 41 CONTENT of DML, cont… SUBCOLUMN 9.2: Justification for approval The purpose of this Subcolumn is to enter any additional information that may be necessary in order to achieve customer approval. This information is reference of the Requests For Approval, reference of justificatory file for materials approved for other space or aeronautical programmes meeting the specific needs of the programme, reference of the evaluation report or waivers etc.. These documents must be made available to ESA on request.

42. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 42 CONTENT of DML, cont… SUBCOLUMN 9.3: Approval status of the Contractor A: Approved - All Materials classified A may be used without restriction. Y: Approved with restriction - These materials require the preparation of QC test specimens or a treatment before use: potting, coating, test specimens... W: Approved with a waiver - These materials do not meet the requirements but are used for functional reasons. The use of such materials shall be reduced to a minimum. All the waivers shall be approved by ESA. The waiver number shall be entered in Subcolumn 9.2. P: Pending a decision - Materials for which an evaluation report or a waiver is awaiting the Contractor's provisional or definitive approval. O: Open - New materials or materials for which investigations and qualification are in progress. D: Deleted - This classification is used for a material which is no longer used . COLUMN 10: ESA approval and comments This column will be completed by ESA in accordance with the standard comments listed in Annex E.

43. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 43 CONTENTS OF THE DECLARED PROCESS LIST

44. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 44 Example of DPL

45. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 45 CONTENT of DPL

46. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 46 CONTENT of DPL, cont…

47. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 47 CONTENT of DPL, cont…

48. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 48 CONTENT of DPL, cont…

49. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 49 CONTENTS OF THE DECLARED MECHANICAL PARTS LIST

50. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 50 Example of DMPL

51. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 51 CONTENT of DMPL, cont…

52. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 52 CONTENT of DMPL, cont…

53. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 53 CONTENT of DMPL, cont…

54. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 54 CONTENT of DMPL, cont…

55. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 55 CONTENT of DMPL, cont…

56. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 56 CONTENT of DMPL, cont…

57. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 57 The Request for Approval(RFA)

58. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 58 The RFA (cont…)

59. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 59 Request for Approval (RFA)Request for Deviation (RFD)Request for Waiver (RFA)

60. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 60 RFA

61. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 61 PMP Flow chart

62. Materials and Components Technology Division ESA/ESTEC/TEC-QT Sheet: 62 RFA