Page Location Details of change Impact area

1 80 3.16 Design/FEA

2 146 Table 3-F.3 FEA

3 151 4.1.1.3 FEA

4 152 4.1.5.1 Design & FEA

5 153 4.1.5.3 Design /FEA

6 156 Table 4.1.1 Design,FEA7 157 Table 4.1.2 Added 0.6 before W Design, FEA

8 191 4.3.9.2 equation 4.3.29 revised Design, FEA

9 200 Table 4.3.110 211 Fig. 4.3.7 Figures corrected for variable referance FEA/Cal

11

12 536 5.1.3.2 Design /FEA

13 538

14 544 5.5.1.7 FEA-Fatigue15 549 5.5.4.2 Step 5 revised for Effective Strain Range FEA

16 550 5.5.5.2 FEA

17 553 5.5.6.2 FEA

Sr. No.

Permited the use of room temperature design values from sec. II, parD, to be used for dsign at colder temperature.

in last two columns of the top row, the second"</=" in each equationcorrected by errata to read "<"

Added requirement that joint alignment must be considered when vessel is operating at a temperature where time-dependant properties govern the allowable stress.

The defination of the term "Design Thickness" is modified by adding corrosion allowance.

use of external standards for Wind Loads & Earthquakes s allowed by code.

Transportation load added to dead weight of vessal.

In the equation beginning with Ncq, in the second column under, "Stress Resultant Calculation", +Qc corrected to -Qc.

Design Cal. & FEA of Dampners may affect

2) In equations beginning with 'V' under "For 0.25<Xh≤2.0", Xh^2Xh, corrrecteds by errata to read "Xg^2Xh"

fea & calculations

use of external standards for Wind Loads & Earthquakes s allowed by code.

5.2.2.4 - step 5 revised

1) modified primary local membrane & primery local membrane plus bending stress limit in para 5.2.2.4 Added variable SPL. Modify fig. 5.1 to reflect new stress limit for PL & PL = PB stress categories.

FEA assesment procedure change

For fatigue analysis effect of Joint alignment & weld peaking in shells & heads to be considered

Rk > 0' corrected to 'Rk ≤ 0' & '≤2Sy,k'

revised to exclude all thermal stresses for simplified elastic - plastic P+Q check

18 554 5.5.6.3 FEA

19 563 Table 5.2 FEA20 564 Table 5.3 Added 0.6 before W FEA21 564 Table 5.4 Revised Globle criteria conditions FEA22 565 Table 5.5 Revised Globle criteria conditions FEA

23 608 5-E.6.1 FEA

24 618 Table 5-E.8 FEA2526

Revised to include all thernmal membrane ratcheting criteria.

1) Added Load due to transportation to Table 5.2

in equation 5-E.7 exponent changed from 0.5 to 2

in equation 5-E.8 exponent changed from 0.5 to 2

Action to be taken

need to check if the case is simulated in FEA

Change design thickness +corrosion allowance

Can use other ref standards for wind load & Earthquakes calculations.

Need to re-run the FEANeed to re-run the FEA

Need to check why sheare force is not considered in this edition.

need to update calculations

Can use other ref standards for wind load & Earthquakes calculations.

need to update FEA as per new assesment procrdure.

FEA to reruen for fatigue analysisFatigue assesment procedure changed to be considered.

Fatigue assesment of weld changed.

Coefficent for fatigue curve 110.2.1-series 3XX High Alloy Steels, Nickel-Chromium-Iron alloy, Nickle-Iron-Chromium Alloy & Nickel-Copper Alloy For temperature not exceeding 427°C

Equation for "drilled holes not penetrating through the vessel wall" changed. Need to redesign/ rerun fea. 1) Tresca based equations changed to average circumferential stress equations. 2) ± sign added to correct bending moment equations

Need to change design Cal. & Fea of DPD/PPD for Cylindrical to conical shell transation junctions with a Knuckle

To be considered during AnalysisTo be considered during AnalysisNeed to re-run the FEANeed to re-run the FEA

Need to revise

Need to revise