interpretation of b31.3

ASME 831.3 - CUMULATIVE INDEX - INTERPRETATIONS VOLS. 1-22

SUBJECT INDEX

Interpre- tation

Interpre- tation

4-02 8-03 15-17 16-08

Interpre- tation Subject

Acceptance Criteria pressure tests weld

Subiect Subject

Branch Connections (Cont'd) weld requirements (Cont'd)

Bending

Bends corrugated miter (see Miter Bends) reduction of outside

diameter Brazed Joints for flammable service

Bolting Materials Buckles

Cast Irons specific requirements Bonding Qualification Test

hot gas welded minimum burst pressure Category D Design

Temperature Allowable Loads procedure specifications

for plastic piping Category D Fluid Service alternative pressure test for limitations

Allowable Stresses bases for requirements

solvent cement

Bonds heat fusion hot gas welded test assembly

radiographic examination

for ASTM A 182 for ASTM A 312 for ASTM A 351 for ASTM A 387 for ASTM A 464 for ASTM A 570 for ASTM A 587 for ASTM A 671

Category M Fluid Senrice clarification of term

Branch Connections couplings extruded outlets double contained piping

fittings leak test liquid oxygen piping flexibility requirements

flexibility analysis integrally reinforced fitting for austenitic stainless

steels for unlisted alloy steel

pipe projection into run pipe

reinforcement 8-06 tubing size limitations Allowable Stress Range 22-07

2-13 8-37 "very small quantity" 1-40

Alterations of Piping 13-04 12-05 12-13 Code Case 22-13

Alternative Tests (see Leak Tests) 14-10 22-29 15-05 22-31

Authorized Inspector (see Owner's 21-39 Inspector) weld requirements 2-10 Code Coverage

4-03 831.3 versus 831.4 1-47 Bellows 13-09 4-14 7-10

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Interpre- Interpre- Subject tation Subject tation Subject

Code Coverage (Cont'd) Earthquake (see Seismic) Expansion joints 831.3 versus 831.9 21-32 buried piping 21-07 Effective Date 22-24 cryogenic piping 21-22

Interpre- tation

1-16 12-23 13-09

fired heaters 15-09 Empty System general hydrocarbon 6-01 transportation

service

Extruded Outlet 9-06

pressure design of

inline sensing devices 8-01 21-24

intent 16-12 later editions 19-01 new and replacement 5-22

Examination acceptance criteria extent of

tees considered as

Extruded Welded Tee

piping 12-21 19-49

offshore platform 8-17 oil heating system 4-19 radioactive fluids 12-20 synfuel plant piping 1-52

2-26 tobacco plant piping 3-1 Components (see also Fittings, Flanges,

Standard Components, Unlisted, and Valves)

certification 1-26 3-7 5-10 13-10

defining 17-23 20-11

design conditions 2-3 fabricated or flared flaps 11-03

12-16

Fatigue

in-process Fillet Weld internal, slip-on flange pressure containing size use

liquid penetrant (see Liquid Penetrant Examination)

personnel postweld heat treatment progressive (see Progressive

Examination) radiographic (see

Radiographic Examination)

Fittings 816.9

random

conforming to two grades flared, flareless, or

compression types

MSS SP-75

inline sensing devices 8-01 records 21-24

11-11 21-20 Flame Arrester

listed 20-25 metric size 19-29 referenced standards 1-44

5-10 22-05

Compressors

required Flammable Service

Flanges assembly design internal piping 1-8

Corrugated Bends 1-23 Cyclic Loading 5-12

17-04 Design (see also Pressure Design) additional design 12-13

general long welding neck slip-on

severe cyclic conditions

considerations calculations 20-26

21-13 conditions 2-3 for stainless bellows 12-23 Lame theory 1-57

spot

types use of aluminum use of raised and flat face

metallic ultrasonic (see Ultrasonic Examination)

visual (see Visual Examination)

minimum temperature 10-02 qualification 20-38

20-40 Displacement Strain 2045 Displacement Stress 2-14

2-24 12-06 18-13 21-09

Flexibility Analysis branch connections exemptions from modulus of elasticity qualification

Exclusions for compressors and

internal piping for interconnecting piping

thermal expansion data listed in scope

(h)

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Subject Interpre-

tation Interpre-

Subject tation

Heat Treatment (Cont'd) heating rate 1-69 local 5-08

8-05 monitoring 548

8-05 postweld 20-39

20-44 22-19

requirements 8-08 8-21 8-23 8-24 9-03 9-05 12-14 14-01 14-16 15-18 18-04 21-46 21-48

SP-1 through SP-5 8-24 when radiography is 1-64

required 2-4

Interpre- Subject tation

Impact Tests (Cont'd) requirements (Cont'd)

21-18 temperature limitation 5-14

8-30 1412 19-07 19-43 21-01 21-28 21-43 22-01 22-02 22-26 22-44

Imperfections (see also Acceptance Criteria)

concave root surface 1-1 6-04

determination of 8-32 lack of fusion 5-09 porosity 1-9

5-13 5-16 5-20

slag inclusion 5-20 tungsten inclusions 1-9

5-17 undercutting 1-14

2-8 6-04

Installed Piping 1-30

Instrument Piping 7-07 8-01

Internal Piping. Equipment 1-8

Joint Factors for ASTM A 234, ASTM A 2-20

312, ASTM A 403 for branch connections 8-06

Flexibility Characteristic effect of branch to run

diameters for a tee

for components not listed in Appendix D

Flexibility Factors basis for for 816.9 tee

for fabricated intersections

for pressure piping components

for welded elbows

Fluid Service definition

general hydrocarbon requirements, metallic

Hydrostatic Tests (see Leak Tests)

requirements, nonmetallic Impact Tests

absorbed energy data 2-9 alternative methods 8-30 base metal 4-01

11-12 18-12 20-10

exclusions from 1-76 5-14

responsibility for categorizing

Graphitization temperature relative to

onset

Hardness limitations on records testing

for circumferential welds for longitudinal and spiral

welds heat treatment required in qualifying procedures of aluminum filler metals of austenitic stainless steel of bolting materials of duplex stadess steel of heat-affected zone

Heat Fusion Joints

Heat Treatment cooling rate for austenitic stainless steel for bending and forming

Joints alignment

of high pressure piping of weldments

circumferential bends exposed during test

for carbon steel pipe for flared laps for valve parts governing thickness

instrument tubing special tapered pipe thread threaded requirements

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Subiect

Lateral Fittings

Leak Tests acceptance criteria

alternative

as nondestructive examination

external design pressure for Category D fluid

service for Category M fluid

service for system designed for 0

psi isolation of test pump leakage minimum hydrostatic test

pressure

minor repairs and additions

negative pressure of discharge piping of joints of newly constructed

systems

of piping and vessel of piping connecting

equipment of replacement piping

painting before test

personnel qualification pneumatic test

Interpre- tation

1-6


Leak Tests (Cont'd) pneumatic test (Cont'd)

22-30 preparation for 2-6

3-10 5-02 5-23 12-03

reduced pressure 1-61 (hydrostatic test)

2-23 13-13 20-17 22-27

requirements 8-15 13-13 22-14 22-15 22-18

sensitive 1-25 17-02 19-06 19-23

system pneumatic leak test 22-30 pressure

temperature correction for 1-35 1-43

test fluid 12-19 test pressure 12-04

19-10 time 20-46

21-11 21-42

welds 20-06 20-07 20-35 21-10 21-36

Lethal Substance 1-73 Limitations on hardness 2-2 on imperfections (see

Impwfections) on tubing size 2-13

3-6 Liquid Penetrant Examination requirements 11-14 Low Temperature Requirements (see

Impact Tests) Materials API 5L 1-78

2 4 3-9 3-11 6-01 6-06

API 5LX 2-4 11-05

ASTM A 234 2-20 ASTM A 312 1-29

1-77 2-20

ASTM A 350 19-07 ASTM A 351 11-13 ASTM A 387 8-25

Subiect

Materials (Cont'd) ASTM A 403

ASTM A 487 ASTM A 537 ASTM A 570 ASTM A 587 ASTM A 633 ASTM A 658 ASTM A 671 ASTM B 241 ASTM B 337 ASTM B 464 austenitic stainless steels bases for design stresses carbon steel certification

conforming to two grades

listed

notch sensitive notes reidentification toughness requirements traceability unlisted material

Mechanical Interlock

Miter Bends pressure design of

Near Straight Sawtooth Runs explanation of

Nomenclature d T

Tw

Interpre- tation

( j )

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Subject Interpre-

tation Interpre-

Subject tation

Pipe (Cont'd) spiral welded 7-03 straight, under internal 10-20

pressure 11-21 14-11

types 20-27


Pipe (Cont'd) of listed components

Nonmetallic Piping fluid service requirements

in Category M Fluid Service

joint requirements

of unlisted components

materials of valves Pipe Supports configurations 6-07 longitudinal stress effects 7-05 materials 19-36

21-41 use of plastic 1-49

Pressure Rating components valve variations

pressure design

Plastic lined pipe - use of 8-33

screwed flanges pipe supports 1-49

Notch Sensitive materials Pressure Relief Devices

acceptable devices Occasional Variations

(Pressure/Temperature Allowances)

Pneumatic Tests (see Leak Tests) and test pressure

Positions qualification of welding 1-66

loads Poshveld Heat Treatment (see Heat

Treatment) pressure reducing station requirements setting

Preheat (see Heat Treatment)

Pressure Design allowance 17-12

20-03 20-51 21-33 21-45

for elevated temperatures 3-4 in the high pressure range 1-68

17-16 of extruded headers 1-21

1-70 of flanges and blanks 10-14

13-15 19-12

stop valves

Owner responsibilities

Pressure Surges loads due to

Pressure-Temperature Rating Owner's Inspector

qualifications of

Pressure Test (see Leak Test) responsibilities of

Pipe alterations of existing pipe

of miter bends 1-21 Pressure Thickness of nonmetallic piping 14-17

components Progressive Examination 14-18

of pipe 1-42 1-54 1-57 1-68 1-70 2-11 11-21 13-07 15-06 15-10 17-06 21-38 22-04 Published Specification

components curved and mitered

segments

elbowless general in corroded condition instrument made from plate

of noncircular cross section pressure design

pressure testing

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Radiographic Examination 100% 5-09

20-17 as supplementary 8-38

examination digital radiography 20-42 normal fluid service 20-20 random radiography 1-27

1-45 1-62 2-12 2-32 3-12 1-10 6-04 11-01 11-05 12-03 22-08

selection of welds for 2-25 examination


Seismic Loads PO7 stresses due to 2-17


Stress Intensification Factors application of 1-34

2-24 6-03R

(Vol. 7)

basis for 1-56 branch connections 2-7 for 816.9 tees 1-7 for fabricated intersections 1-6

5-15 for tees 1-46

1-55 1-71 5-01 12-08 12-17

for unlisted components 13-05 for welded elbows 1-6

12-11

Severe Cyclic Conditions cyclic loading 5-12 large rapid temperature 8-09

change material 21-29 spiral welded pipe 7-03

Simplified Flexibility 1-33 Analysis

Stainless Steel 22-03 22-23 records

requirements Standard Components manufacturer's markings 3-7

8-02 valves 5-05

8-04 8-07

spot radiography Standards compliance

Temperatures allowance

survey plugs when PWHT is required superseded 1-44

bending critical design minimum

temperature

Stresses (see also AIlowoble Stresses) allowable 19-37

19-38 19-46 20-32

displacement stress range 7-04 12-06 20-02

due to cold spring 8-16 due to occasional loads 2-16

Records certification

for radiographic examination

of examinations large changes limitations due to pressure surges 1-50

due to seismic loads 2-17 due to sustained loads 15-15

16-04 16-11 20-02

due to thermal gradients 3-4

of hardness tests retention of

Reinforcement, Branch attachment weld

maximum metal temperature

reduction

clarification of terms

hydrostatic design 19-13 longitudinal 1-20

1-50 2-15 2-24 4-10 4-12 6-03R

limits of

variation in elevated temperature service

verification Reinforcement Pad

Thickness

Repairs to welds

Thermoplastic Piping neat fusion joints

Responsibility designer 10-11 rights of owner's 10-03

inspection 17-15

(Vol. solvent cemented joints 10-8 7) specific requirements 10-06

6-07 7-05 Thickness ALlowances 8-16 governing 17-13 17-18 17-21

Safeguarding 5-12 18-16 1842 reduction factors 16-10 in stress calculations 1-20

Scope (see Code Coverage) 21-34 welding tee 18-18

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Interpre- tation

20-17 20-41

Subject

Washers. Use of

Interpre- tation

2-5


Thickness Requirements Subject

Weld (Cont'd) qualification of position reinforcement Weld

acceptable criteria Tubing category M fluid service joints limitations

repair

sign size socket Ultrasonic Examination

in place of radiography bevels closure configuration definition

requirements

examination of welds Unlisted components spacing of

tack types

Welder Qualification by others

fillet size

requirements

Welding Procedure qualification of

final for branch connections

materials (see Materials)

Valves Category M Fluid Service Flanged Ball Valves materials

imperfections (see also Acceptable Criteria)

joint quality factor

joint strength reduction factor pressure buildup

ratings responsibility

specification longitudinal Visual Examination internal

requirements of valves preparation for welding

Workmanship

(rn)

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interpretation of b31.3

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