ASTM E1066/E1066M-12

Standard Practice for Ammonia Colorimetric LeakTesting

SIGNIFICANCE AND USE
This method is useful for locating and measuring the size of gas leaks either as a quality-control test or as a field-inspection procedure. It can be used to test critical parts or containers that will hold toxic or explosive gases or liquids or as a quick test for other containers.
SCOPE
^SCOPE:
1.1 This test method covers the testing of large single- and double-walled tanks, pressure and vacuum vessels, laminated, lined- or double-walled parts, complex piping systems, flexible containers (such as aircraft fuel tanks), glass-to-metal seals in hybrid packages, and systems that inherently contain or will contain ammonia (such as large tonnage refrigeration systems and fertilizer storage systems).
1.2 This method can be used on piping, valves and containers with welded, fitted, or laminated sections that can be sealed at their ends or between their outer and inner walls and that are designed for internal pressures of 34.5 kPa [5 psig] or greater.
1.3 Basic procedures are described based on the type of inspection used. These procedures should be limited to finding leakage indications of 4.5 × 10−12 mol/s [1 × 10−7 Std cm 3/s] or larger.
1.4 Units—The values stated in Std cm3/s or mol/s 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.
1.5 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. (For more specific safety precautionary information see 7.4, 8.2, 9.4.1, and 10.3.1).

General Information

• Status: Historical
• Publication Date: 14-Jun-2012
• ICS: 17.180.20 - Colours and measurement of light
• Technical Committee: E07 - Nondestructive Testing
• Drafting Committee: E07.08 - Leak Testing Method

Relations

• Replaces: ASTM E1066-95(2006) - Standard Test Method for Ammonia Colorimetric Leak Testing
• Effective Date: 15-Jun-2012
• Replaced By: ASTM E1066/E1066M-19 - Standard Practice for Ammonia Colorimetric Leak Testing
• Effective Date: 01-May-2019
• Referred By: ASTM E2533-21 - Standard Guide for Nondestructive Examination of Polymer Matrix Composites Used in Aerospace Applications
• Effective Date: 15-Jun-2012
• Referred By: ASTM E2982-21 - Standard Guide for Nondestructive Examination of Thin-Walled Metallic Liners in Filament-Wound Pressure Vessels Used in Aerospace Applications
• Effective Date: 15-Jun-2012

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: E1066/E1066M − 12
Standard Practice for
1
Ammonia Colorimetric Leak Testing
ThisstandardisissuedunderthefixeddesignationE1066/E1066M;thenumberimmediatelyfollowingthedesignationindicatestheyear
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 2. Referenced Documents
3
1.1 This test method covers the testing of large single- and 2.1 ASTM Standards:
double-walled tanks, pressure and vacuum vessels, laminated, E1002Practice for Leaks Using Ultrasonics
lined-ordouble-walledparts,complexpipingsystems,flexible E1316Terminology for Nondestructive Examinations
containers (such as aircraft fuel tanks), glass-to-metal seals in 2.2 Other Documents:
hybrid packages, and systems that inherently contain or will SNT-TC-1ARecommended Practice for Personnel Qualifi-
4
contain ammonia (such as large tonnage refrigeration systems cation and Certification in Nondestructive Testing
and fertilizer storage systems). ANSI/ASNT CP-189 ASNT Standard for Qualification and
4
Certification of Nondestructive Testing Personnel
1.2 This method can be used on piping, valves and contain-
erswithwelded,fitted,orlaminatedsectionsthatcanbesealed
3. Terminology
attheirendsorbetweentheirouterandinnerwallsandthatare
3.1 Definitions—For definitions of terms used in this
designed for internal pressures of 34.5 kPa [5 psig] or greater.
standard, see Terminology E1316, Section E.
1.3 Basic procedures are described based on the type of
inspection used.These procedures should be limited to finding
4. Summary of Practice
−12 −7 3 2
leakage indications of 4.5×10 mol/s [1×10 Std cm /s]
4.1 This test method consists of testing a container already
or larger.
filled with ammonia or of introducing an anhydrous ammonia
3
1.4 Units—The values stated in Std cm /s or mol/s are to be or an ammonia-nitrogen mixture into a container or system so
regarded separately as standard. The values stated in each
that the final ammonia percentage achieved is between 1 and
system may not be exact equivalents; therefore, each system 100% by volume at a gage pressure between 34.5 and 689.5
shall be used independently of the other. Combining values
kPa [5 and 100 psig]. The ammonia flows through leaks
from the two systems may result in non-conformance with the
existing in welds and connections and reacts with a developer
standard.
that is applied outside of the container producing a visible
indication.
1.5 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
4.2 Two basic developer procedures are described:
responsibility of the user of this standard to establish appro-
4.2.1 Smoke-producing developers.
priate safety and health practices and determine the applica-
4.2.2 Color-change developers.
bility of regulatory limitations prior to use. (For more specific
4.3 Methods of introducing ammonia into unfilled systems
safety precautionary information see 7.4, 8.2, 9.4.1, and
are described, together with methods of estimating the concen-
10.3.1).
tration and pressure needed to achieve specific detectable leak
rates.
1
This test method is under the jurisdiction of ASTM Committee E07 on
Nondestructive Testing and is the direct responsibility of Subcommittee E07.08 on
3
Leak Testing Method. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved June 15, 2012. Published July 2012. Originally contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
approved in 1985. Last previous edition approved in 2006 as E1066-95(2006). Standards volume information, refer to the standard’s Document Summary page on
DOI: 10.1520/E1066-12. the ASTM website.
2 4
The gas temperature is referenced to 0°C. To convert to another gas reference AvailablefromAmericanSocietyforNondestructiveTesting(ASNT),P.O.Box
temperature, T , multiply the leak rate by (T +273)/273. 28518, 1711 Arlingate Ln., Columbus, OH 43228-0518, http://www.asnt.org.
ref ref
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
E1066/E1066M − 12
4.4 Procedures for testing large tanks and systems are 8.3 Apparatus for Injecting Ammonia Gas:
described. 8.3.1 Pressure Gage—The gage must be able to withstand
normaltestpressures.Thegagemustbeaccuratetowithin1%
4.5 Ultrasonic pretesting for gross leaks is described.
offullscale.Thegagemustreadatleast1.5×butnotmorethan
4× the maximum test pressure to be used.The gage must be in
5. Personnel Qualification
current calibration.
5.1 It is recommended that personnel performing leak test-
8.3.2 Pressure-Relief Valve,ifhigh
...