ASTM A1015-01
(Guide)Standard Guide for Videoborescoping of Tubular Products for Sanitary Applications
Standard Guide for Videoborescoping of Tubular Products for Sanitary Applications
SCOPE
1.1 This standard covers guidelines for ordering and examining tubular products for sanitary applications by videoborescoping. This method uses movable camera probe at the end of a cable to examine the interior of a tubular product. The image is then transmitted to an external monitor for analysis. The method is normally used when inside surface imperfections, not normally detected by other nondestructive methods, may result in contamination of the product which is contained by the tubular product.
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Designation:A1015–01
Standard Guide for
Videoborescoping of Tubular Products for Sanitary
Applications
This standard is issued under the fixed designation A 1015; 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 3.3.6 scratch—a long depression cause by a mechanical
means. It usually has a length-to-width ratio greater than 5.
1.1 This standard covers guidelines for ordering and exam-
3.3.7 slag pocket—a pit, usually in a weld, caused by a
ining tubular products for sanitary applications by videobore-
particle of slag (metal oxides, carbides, fluorides or similar)
scoping. This method uses movable camera probe at the end of
which may have been cold worked into the surface.The pocket
a cable to examine the interior of a tubular product. The image
may or may not still contain slag during the examination.
is then transmitted to an external monitor for analysis. The
3.3.8 starburst—a series of slag pockets where the center
method is normally used when inside surface imperfections,
one is usually the largest and smaller ones radiate outward.
not normally detected by other nondestructive methods, may
3.3.9 tube—agenerictermforalltubularproductsincluding
result in contamination of the product which is contained by
both pipe and tube.
the tubular product.
4. Ordering Information
2. Referenced Documents
4.1 It is the responsibility of the purchaser to specify all of
2.1 ASTM Standards:
the requirements that are desired under this specification. Such
A 941 Terminology Relating to Steel, Stainless Steel, Re-
requirementsmayinclude,butarenotlimitedto,thefollowing:
lated Alloys, and Ferroalloys
4.1.1 Number of tubes to be inspected.
3. Terminology 4.1.2 The amount of probe to tube rotation, if desired
(Section 8).
3.1 Definitions:
4.1.3 Any special probe coverage (Section 8).
3.1.1 For definition of some of the terms used in this
4.1.4 Special probe feed rates (Section 8).
specification, refer to Specification A 941.
4.1.5 Any special acceptance criteria (Section 6).
3.2 Other Definitions:
4.1.6 Supply of recording tapes and whether traceability is
3.2.1 collar—a device which fits around the probe tip to
required (Section 9).
control distance from the product surface and angle of viewing
4.1.7 Information to be identified on recording tapes (Sec-
to ensure a consistent magnification factor.
tion 9).
3.3 Definitions of Terms Specific to This Standard:
4.1.8 Whether customer witnessing is required (Section 10).
3.3.1 inclusion—a nonmetallic particle embedded in the
4.1.9 Whether Certification is required (Section 11).
product surface.
3.3.2 nick—a surface imperfection resulting from material
5. Significance and Use
removal or compression usually caused by a mechanical
5.1 This specification establishes some the key factors
means. It usually has a length to width ratio less than 5.
which govern the interpretation of videoborescoping tubular
3.3.3 oxide—a darker, non-reflective area that is the result
products for a specific application. It is recognized that the
of improper protective gas coverage during a high temperature
requirements for one application may be very different than
operation or insufficient chemical cleaning.
those of another. Therefore, the specification allows for the
3.3.4 pit—a sharp edged surface depression usually caused
inspection to be customized for the application by the user by
bytheremovalofanembeddedparticlebutmayalsobecaused
allowing the purchaser to specify parameters which may be
by selective metal removal by a chemical means.
important for the application.
3.3.5 shrinkage—a line of irregular shallow pores which
occur along the center of a weld.
6. Acceptance Criteria
6.1 The purpose of this inspection is to identify imperfec-
This guide is under the jurisdiction of ASTM Committee A01 on Steel,
tions on the ID surface of the tube which may be detrimental
Stainless Steel, and Related Alloysand is the direct responsibility of Subcommittee
to the end use. These imperfections could have a variety of
A01.10 on Stainless Steel and Alloy Steel Tubular Products.
shapes, sizes and causes which may or may not have impact on
Current edition approved Mar. 10, 2001. Published May 2001.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
A1015
the final use. The criteria should include a reference to the probe tip and scale is controlled to be the same as probe tip and
typesofimperfectionswhichareconsidereddetrimental.These examined surface distance.
may include, but are not limited to, the following:
8. Method of Scanning
6.1.1 Nicks,
6.1.2 Scratches or other linear imperfections, 8.1 The method and coverage of scanning, and care shall be
related to the criticality of the application (See Notes 1-3).
6.1.3 Pits,
6.1.4 Inclusions,
NOTE 1—Scanning is usually considered as a sampling technique as the
6.1.5 Slag pockets,
inside surface coverage is often less than 100 %.As the amount of surface
6.1.6 Starbursts,
area per tube to be scanned increases, so does the potential for detecting
an increasing number of imperfections. Therefore, as the amount of
6.1.7 Shrinkage,
inspected surface area increases, so should the number of imperfections in
6.1.8 Oxide,
the acceptance criteria for a tube of the same quality level.
6.1.9 Other weld imperfections.
NOTE 2—The videoborescoping technique is considered to be a rela-
6.2 Each imperfection shall be ranked by size. The cr
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