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687 views
06:54 Jun-20-2007

Shoaib Anwar

NDT Inspector
Pakistan,
Joined Dec 2006
8
Questions

Hello Dears,

Please, i want some answers of below questions;

Ultrasonc testing:

Which one is the big in size V1 or V2 and these belong to which standard.
What is beam divergence and how it is measured.
What is attenuation of sound beam and how it is calculated.

For CSWIP

1. What is lamellar tearing.

2. What is weld decay

3. What is the difference between Macrograph and micrograph.

API 510

1. CTOD is abbreviation of what.

2. if the dia of vessel is 48”then what is the grading distance for thickness measurement.\

3. if PHT is written on vessel name plate,what is the meaning of this.

Thanks for interest


 
07:25 Jun-20-2007

Udo Schlengermann

Consultant, -
Standards Consulting,
Germany,
Joined Nov 1998
174
Re: Questions Reply to calibration blocks:

The names V1 and V2 are obsolete since 1993.
The correct titles are calibration blocks no 1 (K1) and no 2 (K2):

Nondestructive testing - Ultrasonic examination - Specification for calibration block no 1
EN 12223:2000

Nondestructive testing - Ultrasonic testing - Specification for calibration block no 2
ISO 7963:2006 (identical to EN 27963)

The calibration block no 1 is bigger than the block no 2.

Best regards
Udo Schlengermann
GE Inspection Technologies GmbH, Huerth, Germany
Convenor CEN/TC138/WG2 (UT)
Chairman ISO/TC135/SC3 (UT)

----------- Start Original Message -----------
: Hello Dears,
: Please, i want some answers of below questions;
: Ultrasonc testing:
: Which one is the big in size V1 or V2 and these belong to which standard.
: What is beam divergence and how it is measured.
: What is attenuation of sound beam and how it is calculated.
:
:
: For CSWIP
:
: 1. What is lamellar tearing.
: 2. What is weld decay
: 3. What is the difference between Macrograph and micrograph.
: API 510
: 1. CTOD is abbreviation of what.
: 2. if the dia of vessel is 48”then what is the grading distance for thickness measurement.\
: 3. if PHT is written on vessel name plate,what is the meaning of this.
: Thanks for interest
------------ End Original Message ------------




 


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