Standard Test Method for Acoustic Emission Examination of Pressurized Containers Made of Fiberglass Reinforced Plastic with Balsa Wood Cores

SCOPE
1.1 This test method covers guidelines for acoustic emission (AE) examinations of pressurized containers made of fiberglass reinforced plastic (FRP) with balsa cores. Containers of this type are commonly used on tank trailers for the transport of hazardous chemicals.
1.2 This test method is limited to cylindrical shape containers, 0.5 m [20 in.] to 3 m [120 in.] in diameter, of sandwich construction with balsa wood core and over 30 % glass (by weight) FRP skins. Reinforcing material may be mat, roving, cloth, unidirectional layers, or a combination thereof. There is no restriction with regard to fabrication technique or method of design.
1.3 This test method is limited to containers that are designed for less than 0.520 MPa [75.4 psi] (gage) above static pressure head due to contents.
1.4 This test method does not specify a time interval between examinations for re-qualification of a pressure container.
1.5 Containers that operate with a vacuum are not within the scope of this test method.
1.6 Repair procedures are not within the scope of this test method.
1.7 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
1.8 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Specific precautionary statements are given in Section 8.

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Publication Date
09-Dec-2002
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ASTM E1888/E1888M-02 - Standard Test Method for Acoustic Emission Examination of Pressurized Containers Made of Fiberglass Reinforced Plastic with Balsa Wood Cores
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: E 1888/E 1888M – 02
Standard Test Method for
Acoustic Emission Examination of Pressurized Containers
Made of Fiberglass Reinforced Plastic with Balsa Wood
1
Cores
This standard is issued under the fixed designation E 1888/E 1888M; 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 2. Referenced Documents
1.1 Thistestmethodcoversguidelinesforacousticemission 2.1 ASTM Standards:
(AE)examinationsofpressurizedcontainersmadeoffiberglass E 543 Practice for Agencies Performing Nondestructive
2
reinforced plastic (FRP) with balsa cores. Containers of this Testing
type are commonly used on tank trailers for the transport of E 750 PracticeforCharacterizingAcousticEmissionInstru-
2
hazardous chemicals. mentation
1.2 This test method is limited to cylindrical shape contain- E 976 Guide for Determining the Reproducibility ofAcous-
2
ers, 0.5 m [20 in.] to 3 m [120 in.] in diameter, of sandwich tic Emission Sensor Response
construction with balsa wood core and over 30 % glass (by E 1067 Practice for Acoustic Emission Examination of
2
weight) FRP skins. Reinforcing material may be mat, roving, Fiberglass Reinforced Plastic Resin (FRP) Tanks/Vessels
2
cloth, unidirectional layers, or a combination thereof. There is E 1316 Terminology for Nondestructive Examinations
no restriction with regard to fabrication technique or method of 2.2 SPI/CARP Standards:
design. Recommended Practice for Acoustic Emission Testing of
1.3 This test method is limited to containers that are Fiberglass Reinforced Plastic Resin (FRP) Tanks/
3
designed for less than 0.520 MPa [75.4 psi] (gage) above static Vessels
pressure head due to contents. Recommended Practice for Acoustic Emission Testing of
2
1.4 This test method does not specify a time interval Fiberglass Reinforced Plastic Piping Systems
between examinations for re-qualification of a pressure con- 2.3 ANSI/ASNT Standards:
tainer. SNT-TC-1A Recommended Practice for Personnel Qualifi-
4
1.5 Containersthatoperatewithavacuumarenotwithinthe cation and Certification in Nondestructive Testing
scope of this test method. ANSI/ASNT CP-189 Standard for Qualification and Certi-
4
1.6 Repair procedures are not within the scope of this test fication of NDT Personnel
method. 2.4 Military Standard:
1.7 The values stated in either SI units or inch-pound units MIL STD 410 Nondestructive Testing Personnel Qualifica-
5
are to be regarded separately as standard. The values stated in tion and Certification
each system may not be exact equivalents; therefore, each 2.5 ASME Standard:
6
system shall be used independently of the other. Combining Section V, Article 11, Boiler and Pressure Vessel Code
values from the two systems may result in non-conformance
3. Terminology
with the standard.
3.1 Definitions—With the exception of terms defined in 3.2,
1.8 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the this test method incorporates by reference all terminology in
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use. Specific precau-
2
Annual Book of ASTM Standards, Vol 03.03.
tionary statements are given in Section 8.
3
Available from American Society for Nondestructive Testing, Inc., 1711
Arlingate Lane, Columbus, OH 43228–0518.
4
Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
1
This test method is under the jurisdiction of ASTM Committee E07 on 4th Floor, New York, NY 10036.
5
Nondestructive Testing and is the direct responsibility of Subcommittee E07.04 on AvailablefromStandardizationDocumentsOrderDesk,Bldg.4SectionD,700
Acoustic Emission Method. Robbins Ave., Philadelphia, PA 19111–5094, Attn: NPODS.
6
Current edition approved December 10, 2002. Published February 2003. Origi- Available from American Society of Mechanical Engineers (ASME), ASME
nally approved in 1997. Last previous edition approved in 1997 as E 1888 - 97. International Headquarters, Three Park Ave., New York, NY 10016-5990.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

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E 1888/E 1888M – 02
Terminology E 1316 and Practice E 1067. First occurrences of conducted. AE examinations should not be conducted until
terms defined herein are italicized. such noise is substantially eliminated.
3.2 Definitions of Terms Specific to This Standard: 4.4 Mechanical Background Noise—Mechanical back-
3.2.1 AE trend num
...

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