PMP
PERT Expected Duration
TE = (O + 4M + P) / 6
PMP
PERT Standard Deviation
σ = (P − O) / 6
PMP
Communication Channels
C = n(n−1) / 2
PMP
Point of Total Assumption
PTA = (CP − TP) / SR + TC
PMP
CPI — Cost Performance Index
CPI = EV / AC
PMP
SPI — Schedule Performance Index
SPI = EV / PV
PMP
EAC — Estimate at Completion
EAC = BAC / CPI
PMP
VAC — Variance at Completion
VAC = BAC − EAC
PMP
TCPI — To-Complete Performance Index
TCPI = (BAC − EV) / (BAC − AC)
Scrum
Sprint Capacity
Capacity = Team × Hrs × Days × Focus
ASME
Pipe Wall Thickness
t_m = PD / (2(SE + 0.4P))
ASME
Hydrotest Pressure
P_T = 1.5 × P × (S_T / S)
ASME
Carbon Equivalent
CE = C + Mn/6 + (Cr+Mo+V)/5 + (Ni+Cu)/15
NACE
DFT from WFT
DFT = WFT × %VS / 100
NACE
Theoretical Coverage
Coverage = 10 × %VS / DFT
NACE
Dew Point (Magnus)
γ = ln(RH/100) + 17.62T/(243.12+T)
ACI
Development Length
Ld = (fy × db) / (50 × √fc')
ACI
Concrete Maturity (ACI 209)
f(t) = f(28) × t / (4 + 0.85t)
OSHA
Fall Clearance
D = ½ × g × t²
OSHA
Noise Dose
D = 100 × (C / T)
NDT
RT Exposure Time
t = Dose × SFD² / (A × Γ)
NDT
RT Safe Distance
d = √(Γ × A / DoseRate)