ASTM E1930-97

Standard Test Method for Examination of Liquid Filled Atmospheric and Low Pressure Metal Storage Tanks Using Acoustic Emission

SCOPE
1.1 This test method covers guidelines for acoustic emission (AE) examinations of new and in-service aboveground storage tanks of the type used for storage of liquids.

General Information

• Status: Historical
• Publication Date: 09-Dec-1997
• ICS: 23.020.10 - Stationary containers and tanks
• Technical Committee: E07 - Nondestructive Testing
• Drafting Committee: E07.04 - Acoustic Emission Method

Relations

• Replaced By: ASTM E1930-02 - Standard Test Method for Examination of Liquid Filled Atmospheric and Low Pressure Metal Storage Tanks Using Acoustic Emission
• Effective Date: 10-Jul-2002

Standards Content (Sample)

Designation: E 1930 – 97
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Test Method for
Examination of Liquid-Filled Atmospheric and Low-Pressure
1
Metal Storage Tanks Using Acoustic Emission
This standard is issued under the fixed designation E 1930; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
1.1 This test method covers guidelines for acoustic emission
bility of regulatory limitations prior to use. Specific precau-
(AE) examinations of new and in-service aboveground storage
tionary statements are given in Section 8.
tanks of the type used for storage of liquids.
1.2 This test method will detect acoustic emission in areas
2. Referenced Documents
of sensor coverage that are stressed during the course of the
2.1 ASTM Standards:
test. For flat-bottom tanks these areas will generally include the
E 543 Practice for Evaluating Agencies that Perform Non-
sidewalls (and roof if pressure is applied above the liquid
2
destructive Evaluation
level). The test may not detect defects on the bottom of
2
E 650 Guide to Mounting Piezoelectric AE Sensors
flat-bottom tanks unless sensors are located on the bottom.
E 976 Guide for Determining Reproducibility of AE Sensor
1.3 This test method may require that the tank experience a
2
Response
load that is greater than that encountered in normal use. The
2
E 1316 Terminology for Nondestructive Examinations
normal contents of the tank can usually be used for applying
2.2 ANSI/ASNT Standard:
this load.
ASNT SNT-TC-1A Recommended Practice (for Qualifica-
1.4 This test method is not valid for tanks that will be
tion and Certification of Nondestructive Testing Person-
operated at a pressure greater than the examination pressure.
3
nel)
1.5 It is not necessary to drain or clean the tank before
ANSI/ASNT CP-189 Standard for Qualification and Certi-
performing this examination.
3
fication of NDT Personnel
1.6 This test method applies to tanks made of carbon steel,
2.3 ASME Standard:
stainless steel, aluminum and other metals.
4
Section V, Article 12, Boiler and Pressure Vessel Code
1.7 This test method may also detect defects in tank linings
(for example, high buke phenolics and other brittle materials).
3. Terminology
1.8 Acoustic emission (AE) measurements are used to
3.1 Definitions:
detect and localize emission sources. Other nondestructive
3.1.1 This test method makes use of definitions provided in
testing (NDT) methods may be used to confirm the nature and
Terminology E 1316. Definitions for terms that do not appear
significance of the AE indication(s). Procedures for other NDT
in Terminology E 1316 are given below.
techniques are beyond the scope of this test method.
3.2 Definitions of Terms Specific to This Standard:
1.9 Examination liquid must be above its freezing tempera-
3.2.1 AE activity—the presence of acoustic emission during
ture and below its boiling temperature.
a test. It is normally measured by one or more AE parameters
1.10 Superimposed internal or external pressures must not
such as number of hits, events, signal strength or AE counts. A
exceed design pressure.
source is considered active if its AE activity consistently
1.11 Leaks may be found during the course of this exami-
increases with increasing load.
nation but their detection is not the intention of this test
3.2.2 maximum operating pressure—largest pressure within
method.
the tank during the six-month period prior to AE examination.
1.12 The values stated in inch-pound units are to be re-
This pressure involves the maximum liquid contents level, the
garded as the standard. The SI units given in parentheses are
range of temperature experienced during operation, superim-
for information only.
posed hydrostatic or pneumatic pressure, or both, and any
1.13 This standard does not purport to address all of the
overload or upset conditions which may have occurred.
safety concerns, if any, associated with its use. It is the
2
Annual Book of ASTM Standards, Vol 03.03.
1 3
This test method is under the jurisdiction of ASTM Committee E-07 on Available from American Society for Nondestructive Testing, 1711 Arlingate
Nondestructive Testing and is the direct responsibility of Subcommittee E07.04 on Plaza, P.O. Box 28518, Columbus, OH 43228-0518.
4
Acoustic Emission Method. Available from American Society of Mechanical Engineers, 345 E. 47th Street,
Current edition approved Dec. 10, 1997. Published June 1998. New York, NY 10017.
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E 1930
3.2.3 signal strength—the measured ar
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