ASME BPVC 2023 Section II part C

ASME BPVC.II.C-2023 SFA-5.31M/SFA-5.31
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2.1 American Welding Society AWS documents:
1 AWS A3.0M/A3.0, Standard Welding Terms and Definitions, Including Terms for Adhesive Bonding, Brazing,
Soldering, Thermal Cutting, and Thermal Spraying
2 AWS A5.01M/A5.01 ISO 14344 MOD, Welding and Brazing ConsumablesProcurement of Filler Metals and
Fluxes ISO 14344: 2010 MOD
3 AWS A5.02/A5.02M, Specification for Filler Metal Standard Sizes, Packaging, and Physical Attributes
4 AWS A5.8M/A5.8, Specification for Filler Metals for Brazing and Braze Welding
2.2 American National Standards Institute ANSI document:
1 ANSI Z49.1, Safety in Welding, Cutting, and Allied Processes
2.3 ASTM International ASTM documents:
1 ASTM E11, Standard Specification for Wire Cloth and Sieves for Testing Purposes
2 ASTM E29, Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
2.4 International Organization for Standardization ISO documents:
1 ISO 544, Welding consumables Technical delivery conditions for welding filler materialsType of product,
dimensions, tolerances, and markings
2 ISO 80000-1:2009, Quantities and units Part 1: General. Corrected by ISO 80000-1:2009/Cor 1:2011
2.5 SAE International Standard:
1 SAE HS-1086/ASTM DS56, Metals and Alloys in the Unified Numbering System UNS
3. Classification
3.1 The brazing fluxes covered by this A5.31M/A5.31 specification utilize a classification system that is independent of
the International System of Units SI and U.S. Customary Units. Classification is according to the filler metal, form,
and activity temperature range, as specified in Table 1.
3.2 Materials classified under one classification shall not be classified under any other classification of this specification.
4. Acceptance
Acceptance of the brazing flux shall be in accordance with the tests and requirements of the appropriate clauses of this
specification. See Annex Clause B3, “Acceptance,” for further information concerning acceptance of material to be
shipped. Material shall be deemed acceptable to a given classification if it meets all requirements prescribed in this
specification.
5. Certification
By affixing the AWS specification and classification designations to the packaging, or the classification to the product,
the manufacturer certifies that the product meets the requirements of this specification. See B5 in Annex B for further
information concerning certification and the testing called for to meet this requirement.
6. Rounding Procedure
For the purpose of determining compliance with the requirements of this standard, the actual test values obtained shall
be subjected to the rounding rules of ASTM E29 or Rule A in Clause B.3 of ISO 80000-1 the results are the same. If
the measured values are obtained by equipment calibrated in units other than those of the specified limit, the measured