PUBLIC RELEASE—DISTRIBUTION IS UNLIMITED 


Section Description Requirement in this Standard 
Applicable 
(Enter Yes 
or No) 

Comments 

QMP 
Item Property 
ASTM 
Standard* Quantity Notes 
      QMP-A QMP-B QMP-C   
1 Tensile E8/E8M 15 15 6 
Survey of build area and materials using 
machine tensile specimens meeting 
requirements of sections 5.5.3.1.a and 
5.5.3.1.b of this NASA Technical 
Standard. 
2 
Tensile, with 
Process 
Restart 
E8/E8M 5 5 - 
Required if process restart is allowed. 
Tensile testing of process restart interface 
characterized by restarting in sample 
gauge section of machined specimen. Item 
2 tests not required if restart is included in 
testing for Item 1. 
3 
High Cycle 
Fatigue 
(HCF) 
E466 10 5 - 
For QMP-A, five (5) tests to MPS PCRD 
fatigue condition, and five (5) tests at 
cyclic stress range producing failure 
>10^6 cycles that replicate R-ratio and 
stress range of existing MPS data, 
enabling comparison. For QMP-B, five (5) 
tests to MPS PCRD fatigue condition. 
4 
Low Cycle 
Fatigue 
(LCF) 
E606/E606M 5 5 - Five (5) tests at a cyclic strain range 
represented in MPS data. 
5 
Fatigue, with 
Process 
Restart 
E466, 
E606/E606M 5 5 - 
Required if process restart is allowed. 
Fatigue testing of process restart with 
HCF or LCF, five (5) tests at the MPS 
PCRD fatigue condition. Item 5 tests not 
required if restart is included in tests from 
Items 3 and/or 4. 
6 Fracture 
Toughness E1820, E399 3 0 - Tests with crack in worst-case orientation 
relative to build plane. 


Section Description Requirement in this Standard 
Applicable 
(Enter Yes 
or No) 

Comments 
7 Tensile (at 
Temperature) E21, E1450 6 3 - 
Three (3) tests per temperature at two or 
more temperatures—either the high and 
low bounding temperatures of the MPS or 
other applicable temperatures. 
8 Customized 
QMP As specified 2 2 - 
Test at conditions defined by the candidate 
metallurgical process required for 
acceptance; minimum two (2) tests at 
condition. 
*Other test standards approved by the CEO may be used. 

Table 14—Minimum Mechanical Property Tests for Metal Sub-QMP and SPC Evaluation Builds 

Sub-
QMP and 
SPC Item Property 
ASTM 
Standard* Quantity Notes 
      QMP-A QMP-B QMP-C   
1 Tensile E8/E8M 10 10 4 Survey of build area locations using 
machined tensile specimens. 
2 
Tensile, 
with Process 
Restart 
E8/E8M 5 5 - 
Required if process restart is allowed. 
Tensile testing of process restart 
interface characterized by restarting in 
sample gauge section of machined 
specimens. Item 2 tests not required if 
restart is included in testing for Item 1. 
3 
High Cycle 
Fatigue 
(HCF) 
E466 5 5 - Five (5) tests to MPS PCRD fatigue 
condition. 
4 
Low Cycle 
Fatigue 
(LCF) 
E606/E606M - - - Not required for sub-QMP (only QMP). 


Section Description Requirement in this Standard 
Applicable 
(Enter Yes 
or No) 

Comments 
5 
Fatigue, 
with Process 
Restart 
E466, 
E606/E606M 5 5 - 
Required if process restart is allowed. 
Fatigue testing of process restart with 
HCF or LCF, five (5) tests at the MPS 
PCRD fatigue condition. Item 5 tests 
not required if restart is included in 
tests from Item 3. 
6 Fracture 
Toughness E1820, E399 2  - Tests with crack in worst-case 
orientation relative to build plane. 
7 Tensile (at 
temperature) E21, E1450 - - - Not required for sub-QMP (only QMP). 
8 Customized 
QMP As specified 2 2 - 
Test at conditions defined by the 
candidate metallurgical process 
required for acceptance; minimum of 
two (2) tests at condition. 
*Other test standards approved by the CEO may be used. 

Table 15—Minimum Mechanical Property Tests for Polymeric QMP Builds 
QMP 
Item Property ASTM Standard* Quantity Notes 
      QMP-A QMP-B QMP-C   
1 Tensile D638/D5766/D6742 
Not 
Applicable 
15 6 
Survey of build area and materials 
using machined tensile specimens 
from “hot” and “cold” process 
variants  
2 
Tensile, with 
Process 
Restart 
D638/D5766/D6742 5 - 
Required if process restart is 
allowed. Tensile testing of process 
restart interface characterized by 
restarting in sample gauge section 
of machined specimen. Item 2 tests 
not required if restart is included in 
testing for Item 1. 
3 Density See commentary 5 -  


Section Description Requirement in this Standard 
Applicable 
(Enter Yes 
or No) 

Comments 
4 Flexural D790 3 - 
Method that determines the 
modulus of elasticity and flexural 
strength of reinforced and 
unreinforced plastic. 
5 Compression D695/D6742/D6484 3 - 
Method used in determining a 
material’s modulus of elasticity and 
compressive offset yield strength. 
6 Sustained 
load D2990 3  Stiffness, offset bearing strength, 
and ultimate bearing strength. 
7 Customized 
QMP As Specified 2 - 
Test at conditions defined by the 
candidate material process required 
for acceptance, minimum two (2) 
tests at condition. 
*Other test standards approved by the CEO may be used. 

Table 16—Minimum Mechanical Property Tests for Polymeric Sub-QMP and SPC Evaluation Builds 
Sub QMP 
and SPC 
Build 
Item Property 
ASTM 
Standard* Quantity Notes 
      QMP-A QMP-B QMP-C   
1 Tensile D638/D5766/ 
D6742 
Not 
Applicable 
10 4 Survey of build area locations using 
machined tensile specimens. 
2 
Tensile, with 
Process 
Restart 
D638/D5766/ 
D6742 5 - 
Required if process restart is 
allowed. Tensile testing of process 
restart interface characterized by 
restarting in sample gauge section 
of machined specimens. Item 2 tests 
not required if restart is included in 
testing for Item 1. 
3 Density See 
commentary 3 - Not required for sub-QMP (only 
QMP). 


Section Description Requirement in this Standard 
Applicable 
(Enter Yes 
or No) 

Comments 
4 Flexural D790 3 - 
Method that determines the modulus 
of elasticity and flexural strength of 
reinforced and unreinforced plastic. 
5 Compression D695/D6742/ 
D6484 3 - 
Method used in determining a 
material’s modulus of elasticity and 
compressive offset yield strength. 
6 Sustained 
Load D2990 3 - Not required for sub-QMP (only 
QMP). 
7 Customized 
QMP As Specified 2 - 
Test at conditions defined by the 
candidate material process required 
for acceptance, minimum two (2) 
tests at condition. 
*Other test standards approved by the CEO may be used. 
5.5.4 Qualified Material 
Process Record 
[AMR-58] A candidate material process shall become fully qualified (i.e., a QMP) when: 
a. A configuration-controlled record is established containing the complete definition of the QMP and all necessary 
supporting information substantiating that the qualification requirements of section 5 of this NASA Technical 
Standard have been satisfied. 
b. The CEO has verified it to be complete and satisfactory. 
c. Items (a) and (b) are documented and controlled by the QMS. 

5.6 Registration of a 
Candidate 
Material Process 
to an MPS 

[AMR-59] Each candidate material process for a QMP-A or QMP-B shall be registered to an MPS through confirmation 
of the properties listed in Table 17, Properties and Controls to Register a Candidate Material Process to an MPS, that have 
been tested per Tables 13 through 16.  

Table 17—Properties and Controls to Register a Candidate Material Process to an MPS  
Property Metals Polymers 
Feedstock specification and feedstock controls are the same as those in 
the MPS. X X 
Documentation is available to verify that the material process definition 
was established and adhered to continuously during the development of 
evaluation materials. X X 
Microstructural characteristics are consistent with those of the MPS. X X 


Section Description Requirement in this Standard 
Applicable 
(Enter Yes 
or No) 

Comments 
Tensile strengths and ductility are accepted to the tensile PCRDs of the 
MPS. X X 
Measured high cycle fatigue life is accepted to the fatigue PCRD of the 
MPS. X  
Measured low-cycle fatigue life is consistent with MPS data. X  
Measured fracture toughness is consistent with MPS data. X  
For QMP-A and QMP-B, if applicable, tensile properties at temperature 
are consistent with MPS data. X  
Measured density is consistent with density of MPS data.  X 
Measured flexural modulus of elasticity and/or flexural strength is 
consistent with MPS data.  X 
Measured compression modulus of elasticity is consistent with MPS 
data.  X 
Measured sustained load performance is consistent with MPS data.  X 
Documentation substantiating this confirmation will be configuration 
controlled within the QMS and recorded within the qualified material 
process record. X X 

5.7 Qualified Material 
Process Record 
[AMR-60] A candidate QMP shall become fully qualified (i.e., a QMP) when: 
 A configuration-controlled record is established containing the complete definition of the candidate QMP and all 
necessary supporting information substantiating that the qualification requirements in section 5 of this NASA 
Technical Standard have been satisfied. 
 The CEO has verified it to be complete and satisfactory. 
 Items (a) and (b) are documented and controlled by the QMS. 

6.1 MPS for Class A 
and B Parts 
[AMR-61] For Class A and B parts, an MPS shall be developed and maintained to substantiate the design and production of 
AM parts. 

6.2 Material 
Properties for 
Class C Parts 
[AMR-62] For Class C parts, all required material properties needed to substantiate the manufacturability of the design and 
classification of the part shall be documented through the MUA process or the PPP, but may be of typical basis.  

6.3 MPS Approval [AMR-63] An MUA per NASA-STD-6016 shall be submitted for MPS review and approval by NASA and, at a minimum, 
address the following: 


Section Description Requirement in this Standard 
Applicable 
(Enter Yes 
or No) 

Comments 
 Documentation substantiating the development, implementation, and maintenance of the MPS (for Class A and B 
parts). 
 Documentation that addresses, at minimum, the requirements given in sections 6.4 through 6.10 of this NASA 
Technical Standard, and all subsections relevant to the applicable material allowables and associated design values in 
sections 6.11.2 and 6.11.5 of this NASA Technical Standard. 
 For Class A and B parts, material allowables and associated design values, PCRDs, and all other supporting data of 
the MPS are made available for NASA review as requested. 
 For Class C parts, material properties are documented as required to substantiate the design and classification. 
6.4 Process Control in 
Material Property 
Development 
[AMR-64] For Class A and B parts, documented process controls shall be implemented on any AM build used to create 
material for characterization, including the use of a QMP and witness testing with specimens and acceptance criteria 
equivalent to a Class B1 part, per Tables 5 and 6. 

6.5 Lot Variability 
Impact on 
Material 
Allowables 
[AMR-65] Each material allowable within an MPS shall be designated either lot-mature when based on the minimum unique 
chemistry feedstock lot quantities in Table 18, Required Lot Quantities for Lot -Mature Metal MPS Properties, and Table 19, 
Required Lot Quantities for Lot-Mature Polymeric MPS Properties, or lot-provisional if not, where: 
 A lot-mature material allowable is applicable to material used in parts of all classes.  
 A lot-provisional material allowable is applicable to material used in Class B parts that are built with a feedstock lot 
directly represented in the MPS and that have an approved, part-specific MUA. 
 Lot-provisional material allowables are applicable to material used in Class C parts without feedstock restrictions or a 
part-specific MUA. 
Table 18—Required Lot Quantities for Lot-Mature Metal MPS Properties 
Properties 
Feedstock Lots 
(nominally balanced*) 
Build/Heat Treat Lots 
(nominally balanced*) 
Physical and constitutive 3 5 
Tensile 5 10 
Secondary 3 5 
Fatigue 5 10 
Fracture mechanics 3 5 
Stress rupture/creep 3 5 
* Nominally balanced lot contributions as described in commentary. 

Table 19—Required Lot Quantities for Lot-Mature Polymeric MPS Properties 


Section Description Requirement in this Standard 
Applicable 
(Enter Yes 
or No) 

Comments 
Properties Feedstock Lots  Build Lots 
Physical and constitutive 3 5 
Tensile/compression† 5 10 
Shear 5 10 
Flexural 5 10 
Fatigue 5 10 
Creep/sustained load 5 10 
† Including notch testing, if required 

6.6 Used Feedstock 
Lot Controls 
[AMR-66] When printing Class A and B parts using AM processes capable of feedstock reuse, limiting metrics for feedstock 
reuse shall be established and implemented to ensure the following: 
a. The effects of reuse on material performance are either demonstrated as negligible or material property data 
representing the limiting reuse state are incorporated directly into the MPS population.  
b. Parts are not built with feedstock exceeding the reuse limits. 
c. The methodology for incorporating the influence of feedstock reuse into the design values of each MPS is described 
as part of the MUA substantiating the methodology of the MPS development.  

6.7.1 Identification and 
Characterization 
of Influence 
Factors 
[AMR-67] For Class A and B parts, the CEO shall provide for the systematic identification and characterization of any known 
factor having influence on the bulk or local performance of the AM material for the purpose of establishing design values. 

6.7.2 Influence Factor 
Effect on Material 
Allowables 
[AMR-68] For Class A and B parts, when required for part assessment, design values appropriate to each identified influence 
factor shall be developed and incorporated into the MPS. 

6.7.3 Explicit 
Evaluation of 
Anisotropy 
[AMR-69] Each MPS for Class A and B parts shall explicitly include supporting data necessary to evaluate the effects of 
anisotropy present in the AM material produced to a QMP such that anisotropy is either properly incorporated into the materia l 
allowables and associated design values, or rationale for a bounding isotropic assumption is established. 

6.8 Criteria for the 
Use of External 
Data in the MPS 
[AMR-70] For Class A and B parts, material property data generated outside the jurisdiction of this NASA Technical Standard 
(e.g., prior industry or government data), shall meet each of the following criteria prior to incorporation into or establishment 
of an MPS: 
a. Properties are generated from material produced by a documented AM process fundamentally the same as those 
already registered to the MPS. 
b. Authenticating records of traceability are available for the feedstock chemistry and post -AM operations (e.g., heat 
treatment). 


Section Description Requirement in this Standard 
Applicable 
(Enter Yes 
or No) 

Comments 
c. Properties are generated from material tested in a material condition (e.g., heat treatment and microstructure) 
equivalent to that defined by QMPs registered to the MPS. 
d. Authenticating records of traceability are available that illustrate the material internal quality and final microstructure.  
e. The size, geometry, build orientation, and surface condition of test specimens are defined. 
f. The specifications governing the material test methods are defined. 
g. The external data are provided in the form of actual test results to allow material allowables and PCRD criteria to be 
established or independently verified. 
h. Demonstration that active QMP(s) produce(s) materials equivalent in structure and mechanical properties, based on 
the registration process in section 5.6 of this NASA Technical Standard. 
6.9 Process Control 
Reference 
Distribution 
(PCRD) 
[AMR-71] For Class A and B parts, a PCRD shall be established as part of the MPS for each