ASTM E1118-05

Standard Practice for Acoustic Emission Examination of Reinforced Thermosetting Resin Pipe (RTRP)

SIGNIFICANCE AND USE
The AE examination method detects damage in RTRP. The damage mechanisms detected in RTRP are as follows: resin cracking, fiber debonding, fiber pullout, fiber breakage, delamination, and bond or thread failure in assembled joints. Flaws in unstressed areas and flaws which are structurally insignificant will not generate AE.
This practice is convenient for on-line use under operating conditions to determine structural integrity of in-service RTRP usually with minimal process disruption.
Flaws located with AE should be examined by other techniques; for example, visual, ultrasound, and dye penetrant, and may be repaired and retested as appropriate. Repair procedure recommendations are outside the scope of this practice.
SCOPE
1.1 This practice covers acoustic emission (AE) examination or monitoring of reinforced thermosetting resin pipe (RTRP) to determine structural integrity. It is applicable to lined or unlined pipe, fittings, joints, and piping systems.
1.2 This practice is applicable to pipe that is fabricated with fiberglass and carbon fiber reinforcements with reinforcing contents greater than 15 % by weight. The suitability of these procedures must be demonstrated before they are used for piping that is constructed with other reinforcing materials.
1.3 This practice is applicable to tests below pressures of 35 MPa absolute (5000 psia).
1.4 This practice is limited to pipe up to and including 0.6 m (24 in.) in diameter. Larger diameter pipe can be examined with AE, however, the procedure is outside the scope of this practice.
1.5 This practice applies to examinations of new or in-service RTRP.
1.6 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.7 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 to determine the applicability of regulatory limitations prior to use. For more specific safety precautionary information see 8.1.

General Information

• Status: Historical
• Publication Date: 31-May-2005
• ICS: 23.040.20 - Plastics pipes
• Technical Committee: E07 - Nondestructive Testing
• Drafting Committee: E07.04 - Acoustic Emission Method

Relations

• Replaces: ASTM E1118-00 - Standard Practice for Acoustic Emission Examination of Reinforced Thermosetting Resin Pipe (RTRP)
• Effective Date: 01-Jun-2005
• Replaced By: ASTM E1118/E1118M-11 - Standard Practice for Acoustic Emission Examination of Reinforced Thermosetting Resin Pipe (RTRP)
• Effective Date: 01-Jan-2011
• Referred By: ASTM E543-21 - Standard Specification for Agencies Performing Nondestructive Testing
• Effective Date: 01-Jun-2005
• Referred By: ASTM E2981-21 - Standard Guide for Nondestructive Examination of Composite Overwraps in Filament Wound Pressure Vessels Used in Aerospace Applications
• Effective Date: 01-Jun-2005

Standards Content (Sample)

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: E1118 – 05
Standard Practice for
Acoustic Emission Examination of Reinforced
1
Thermosetting Resin Pipe (RTRP)
This standard is issued under the fixed designation E1118; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope E650 Guide for Mounting Piezoelectric Acoustic Emission
Sensors
1.1 This practice covers acoustic emission (AE) examina-
E750 Practice for CharacterizingAcoustic Emission Instru-
tion or monitoring of reinforced thermosetting resin pipe
mentation
(RTRP) to determine structural integrity. It is applicable to
E976 Guide for Determining the Reproducibility ofAcous-
lined or unlined pipe, fittings, joints, and piping systems.
tic Emission Sensor Response
1.2 Thispracticeisapplicabletopipethatisfabricatedwith
E1316 Terminology for Nondestructive Examinations
fiberglass and carbon fiber reinforcements with reinforcing
3
2.2 ASNT Standards:
contents greater than 15% by weight. The suitability of these
ANSI/ASNTCP-189 Personnel Qualification and Certifica-
procedures must be demonstrated before they are used for
tion in Nondestructive Testing
piping that is constructed with other reinforcing materials.
ASNT SNT-TC-1A Personnel Qualification and Certifica-
1.3 Thispracticeisapplicabletotestsbelowpressuresof35
tion in Nondestructive Testing
MPa absolute (5000 psia).
4
2.3 AIA Standard:
1.4 This practice is limited to pipe up to and including 0.6
NAS-410 Certification and Qualification of Nondestructive
m (24 in.) in diameter. Larger diameter pipe can be examined
Test Personnel
with AE, however, the procedure is outside the scope of this
practice.
3. Terminology
1.5 This practice applies to examinations of new or in-
3.1 Complete glossaries of terms related to plastics and
service RTRP.
acoustic emission will be found in Terminologies D883 and
1.6 The values stated in SI units are to be regarded as the
E1316.
standard. The values given in parentheses are for information
3.2 Definitions of Terms Specific to This Standard:
only.
3.2.1 component and assembly proof testing—a program of
1.7 This standard does not purport to address all of the
tests on RTRP components designed to assess product quality
safety concerns, if any, associated with its use. It is the
inamanufacturer’splant,attheinstallationsite,orwhentaken
responsibility of the user of this standard to establish appro-
out of service for retesting.An assembly is a shippable unit of
priate safety and health practices and to determine the
factory-assembled components.
applicability of regulatory limitations prior to use. For more
3.2.2 count value N —an evaluation criterion based on the
c
specific safety precautionary information see 8.1.
total number of AE counts. (See A2.5.)
D 1 D
2. Referenced Documents
o i
3.2.3 diameter to thickness ratio (d/t)—equal to
2 2t
2.1 ASTM Standards:
where (D ) is the outside pipe diameter, (D) is the inside pipe
o i
D883 Terminology Relating to Plastics
diameter,and(t)isthewallthickness,asmeasuredinasection
E543 Specification for Agencies Performing Nondestruc-
of straight pipe.
tive Testing
3.2.4 high-amplitude threshold—a threshold for large am-
plitude events. (See A2.3.)
3.2.5 in-service systems testing—aprogramofperiodictests
1
This practice is under the jurisdiction of ASTM Committee E07 on Nonde-
during the lifetime of an RTRP system designed to assess its
structive Testing and is the direct responsibility of Subcommittee E07.04 on
structural integrity.
Acoustic Emission.
Current edition approved June 1, 2005. Published June 2005. Originally
approved in 1986. Last previous edition approved in 2000 as E1118-00. DOI:
10.1520/E1118-05.
2 3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or AvailablefromTheAmericanSocietyforNondestructiveTesting(ASNT),P.O.
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Box 28518, 1711 Arlingate Ln., Columbus, OH 43228-0518.
4
Standards volume information, refer to the standard’s Document Summary page on Available fromAerospace IndustriesAssociation ofAmerica, Inc. (AIA), 1250
the ASTM website. Eye St., NW, Washington, DC 20005.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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E1118 – 05
3.2.6 low-amplitude threshold—the threshold above which and may be repaired and retested as appropriate. Repair
AE counts (N) are measured. (See A2.2.) procedure recommendations are outside the scope of this
3.2.7 manufacturers qualification testing—acomprehensive practice.
program of tests to confirm product des
...