API 510 Certification Practice Data

Vocabulary based on the API 510 Certification Data Sheets covering codes, dimensions, temperatures, pressures, and inspection intervals.

API 579

The reference document for Fitness for Service (FFS).

API 580

The reference document for Risked Based Inspection.

API 2201

The reference document for Welding on In-Service Equipment containing Flammables.

ASNT SNT-TC-1A

The reference document for NDE Personnel Qualification, specifically for RT & UT Flaw Detection.

AIRR

The abbreviation representing the API 510 Scope: Alteration, Inspection, Repair, Rerate.

JOIC

The abbreviation representing API 510 Authorized Inspector’s Employer: Jurisdiction, Owner, Insurance company, or Contractor.

SPUCE

The mnemonic for determining Corrosion Rate for New or Changed Service: Similar Service, Published Data, UT Sensors, Corrosion Specialist, or Exam within 6 months.

RAT-IE

The primary responsibilities of API 510 Authorized Inspector: Repairs, Alterations, Testing, Inspection, and Examination.

Alteration

A physical change in a component that has design implications that affect the pressure-containing capability or flexibility of a pressure vessel.

Repair

The work necessary to restore a vessel to a condition suitable for safe operation at the design conditions.

RBI Primary Factors

Probability and Consequence.

Max weld crack length (New Weld)

$0"$ is the maximum length of Crack, Incomplete Penetration, or Incomplete Fusion allowed.

Mill Tolerance of a plate

The lesser of $0.010"$ or $6\%$ of $T$, where $T$ is the thickness.

RT Thickness Range using Iridium 192

$0.25 - 3.0"$.

UT in lieu of RT thickness

Thickness greater than $\frac{1}{4}"$ ($> 1/4"$) allows UT to be used for inspection of new vessel welds or welder qualification.

Min radius of insert patch

Minimum radius of $1"$ is required for an insert patch or fillet weld patch.

LTA Evaluation Distance

To use $E = 1.0$, the corroded area must be away from the weld by the greater of $1"$ or $2T$.

Wall thickness requiring PWHT (CS shell)

Wall thickness greater than $1-1/2"$ ($> 1-1/2"$) of Carbon Steel shell requires PWHT.

Maximum diameter of a CML

$2"$.

Vessel inside diameters excluded from ASME Sect VIII

Inside diameters less than $6"$ ($< 6"$).

Maximum distance between welder's stamps

$3'$.

Minimum wall thickness at a pit

$1/2 t_{min}$.

CUI Temp Range (Carbon Steel)

$10 - 350\,^{\circ}F$.

CUI Temp Range (Austenitic SS)

$140 - 350\,^{\circ}F$.

UT Calibration Block Temp Tolerance

The block must be within $25\,^{\circ}F$ of the part to be examined.

Standard PT Temp Range

$40 - 125\,^{\circ}F$.

Chloride Stress Corrosion Cracking Temp

Becomes a concern at temperatures greater than $140\,^{\circ}F$ ($> 140\,^{\circ}F$).

Sulfidation concern temperature (CS)

$500\,^{\circ}F$.

Carbon Steel normal PWHT temperature

$1100\,^{\circ}F$.

Hydrotest Min Base Metal Temp (vessels < 2")

$MDMT + 10\,^{\circ}F$.

Hydrotest Min Base Metal Temp (vessels > 2")

$MDMT + 30\,^{\circ}F$.

WPS

Weld Procedure Specification.

PQR

Procedure Qualification Record, which is the record of a weld procedure qualification.

WPQ

Welders Qualification Record, often referred to as the welder’s paper.

ASME Sect VIII & API 510 scope pressure

Design pressures greater than $15\,psig$ ($> 15\,psig$).

Pressure Gauge Range for Testing

Minimum: $1.5 \times P_{test}$; Preferred: $2.0 \times P_{test}$; Maximum: $4.0 \times P_{test}$.

P-numbers for Pre-heat in lieu of PWHT

$P1$ and $P3$.

Static Head Factor

$0.433\,psig/ft$ (psig per height of water in feet).

Safety Factor of ASME Section VIII (Current)

$3.5$.

Max chloride content in 300 series SS hydrotest water

$50\,ppm$.

Weight for AC Yoke magnetic strength check

$10\,lb$.

Minimum light intensity for VT

$100\,ft-candles$.

Minimum black light intensity for MT/PT

$1000\,\mu W/cm^2$.

Max Internal Insp Interval (Remaining Life < 4 years)

The lesser of $2\,yr$ or Full Life.

Max External Inspection Interval

The lesser of $5\,yr$ or the Internal inspection interval.

Max Internal or On-Stream Inspection Interval

The lesser of $10\,yr$ or $\frac{1}{2}$ Life.

Vessel MAWP location

Defined as being at the top of the vessel.

Defect

An imperfection that exceeds the acceptance criteria.

Lethal Service Marking

Marked with an $L$ on the nameplate.

RT Lead Letter B

Lead letter used during RT to check for backscatter radiation.

All-position test coupon

$6G$.

Jaeger J-1

The visual acuity test required for an inspector’s eye exam.