API V Flashcards
Examination records shall include the following information as a minimum:
(1) date of the examination
(2) name and/or identity and certification level
(3) identification of the weld, part, or component examined including weld number, serial number, or other identifier
4) examination method, technique, procedure identification, and revision
(5) results of the examination
difference between inspection and examination?
INSPECTION: functions performed by the Inspector,
EXAMINATION - applies to those quality control functions performed by personnel employed by the organization.
lead symbol “B” for RT should be placed where?
attached to the back of each film holder
What is IQI stand for
Image quality indicator
2 Types of IQI?
wire and hole type
how often should Densitometers be calibrated
at least every 3 months
what is a Densitometers
device for measuring the optical density
of radiograph film.
step wedge:
a device with discrete step thickness increments / used to obtain an image with discrete density step values.
What to use to calibrate densitometers? (2)
national standard step tablet or a step wedge calibration film
When is the densitometer is acceptable if the density readings…..
do not vary by more than ±0.05 density
when to verify densitometers?
beginning of each shift, after 8 hr of continuous use
2 type of RT technique?
- single wall
2. double wall
where is the placement of location markers?
placed on the part, not on the exposure holder/cassette
/ source side
The IQI(s) shall be placed on the
source side of the part
When the IQI not practical to be placed in the source side? and what letter to put?
Film side , with A lead letter “F” shall be placed adjacent to or on the IQI(s), but shall not mask the essential hole where hole IQIs are used.
Where to place the hole IQI?
adjacent to or on the weld.
The lead letter “F,” shall not be place
be in the area of interest, except when geometric configuration makes it impractical.
All radiographs shall be free
from mechanical, chemical, or other blemishes to the extent that they do not mask and are not confused with the image of any discontinuity
density limitation for single film view with X-ray?
1.8 minimum for single film view for radiographs made with an X-ray source , max is 4.0
density limitation for single film view with gamma ray?
2.0 minimum for radiographs made with a gamma ray source max is 4.0
density limitation for composite viewing (min/max)
minimum density of 1.3 ,max is 4.0
density allowable variation (%), ) (- / +)
vary by more than minus 15% or plus 30% through the IQI
when shim are used what is the density variation allowed?
the plus 30% may be exceeded, the minimum density requirements do not apply for the IQI,
if needed, so that the radiographic density throughout the area of interest is no more than minus 15% from (lighter than) the radiographic density through the designated IQI adjacent
to the essential hole
where are shims placed?
shall be placed between the part and the IQI,