ASTM E802-95(1999)
(Specification)Standard Reference Radiographs for Gray Iron Castings Up to 4 1/2 in. (114 mm) in Thickness
Standard Reference Radiographs for Gray Iron Castings Up to 4 1/2 in. (114 mm) in Thickness
SCOPE
1.1 These reference radiographs for gray iron castings consist of one set of illustrations of centerline shrinkage with severity levels 1 to 5 using three radiation source types as follows:
1.1.1 Volume I: Medium Voltage (nominal 250 kVp) X-Ray Reference Radiographs -Set of 5 severity levels in a 15 by 17 in. folder.
1.1.2 Volume II: Iridium-192 Reference Radiographs Set of 5 severity levels in a 15 by 17 in. folder.
1.1.3 Volume III: Cobalt-60 Reference Radiographs -Set of 5 severity levels in a 15 by 17 in. folder.
1.2 The values stated in inch-pound units are to be regarded as the standard.
1.3 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.
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Designation: E 802 – 95 (Reapproved 1999)
Standard Reference Radiographs for
Gray Iron Castings Up to 4 ⁄2 in. (114 mm) in Thickness
This standard is issued under the fixed designation E 802; 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 Volume III, Cobalt-60
1.1 These reference radiographs for gray iron castings
3. Terminology
consist of one set of illustrations of centerline shrinkage with
3.1 Definitions—For definitions of terms used in this docu-
severity levels 1 to 5 using three radiation source types as
ment, see Terminology E 1316, Section D.
follows:
1.1.1 Volume I: Medium Voltage (nominal 250 kVp) X-Ray
4. Significance and Use
Reference Radiographs——Set of 5 severity levels in a 15 by
4.1 These reference radiographs, along with the referenced
17 in. folder.
applicable steel casting standards (Reference Radiographs
1.1.2 Volume II: Iridium-192 Reference Radiographs—Set
E 186 and E 446), are supplied as a means of establishing
of 5 severity levels in a 15 by 17 in. folder.
categoriesandseveritylevelsofcommoninternaldiscontinuity
1.1.3 Volume III: Cobalt-60 Reference Radiographs—Set of
types in gray iron castings subjected to radiographic examina-
5 severity levels in a 15 by 17 in. folder.
tion. They may be used in accordance with contractual speci-
1.2 The values stated in inch-pound units are to be regarded
fications as agreed upon between purchaser and supplier.
as the standard.
4.2 The use of this standard is not intended to be restricted
1.3 This standard does not purport to address all of the
to the specific energy level or to the absolute thickness limits
safety concerns, if any, associated with its use. It is the
that are contained in this standard title. The title is intended to
responsibility of the user of this standard to establish appro-
be descriptive and not restrictive. This document may be used,
priate safety and health practices and determine the applica-
where there is no other applicable document, for other energy
bility of regulatory limitations prior to use.
levels or thicknesses, or both, for which it is found to be
2. Referenced Documents applicable and for which agreement has been reached between
purchaser and supplier.
2.1 ASTM Standards:
E 94 Guide for Radiographic Testing
5. Method of Preparation
E 186 Reference Radiographs for Heavy-Walled (2 to 4 ⁄2
2 5.1 The original radiographs used to prepare the accompa-
-in. (51 to 114-mm)) Steel Castings
nying reference radiographs were produced on high contrast,
E 446 Reference Radiographs for Steel Castings Up to 2 in.
2 fine-grainfilmbytherespectiveuseofradiationenergiesstated
(51 mm) in Thickness
in 1.1.1-1.1.3. The radiographs were made with a penetrameter
E 1316 Terminology for Nondestructive Examinations
3 sensitivity as determined by ASTM penetrameters (see Guide
2.2 ASTM Adjuncts:
E 94) of 2-2T. The reproductions have been prepared to an
Reference Radiographs for Gray Iron Castings Up to 4 ⁄2 in.
H&D density from 2.00 to 2.25 and they have retained
(114 mm) in Thickness:
substantially the contrast of the original radiographs.
Volume I, Medium Voltage (Nominal 250 kVp) X Rays
5 5.2 Film Deterioration—Radiographic films are subject to
Volume II, Iridium-192
wear and tear from handling and use. The extent to which the
image deteriorates over time is a function of storage condi-
tions, care in handling and amount of use. Reference radio-
These reference radiographs are under the jurisdiction of ASTM Committee
E-7 on Nondestructive Testing and are the direct responsibility of Subcommittee
graph films are no exception and may exhibit a loss in image
E07.02 on Reference Radiographs.
quality over time. The radiographs should therefore be peri-
Current edition approved Dec. 10, 1995. Published February 1996. Originally
odically examined for signs of wear and tear, including
published as E 802 – 82. Last previous edition E 802 – 91.
Annual Book of ASTM Standards, Vol 03.03.
Available from ASTM Headquarters.
Order RRE080201.
5 6
Order RRE080202. Order RRE080203.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
E 802 – 95 (1999)
scratches, abrasions, stains, and so forth. Any reference radio- 8.2 When a particular class or severity is called for and the
graphs which show signs of exces
...
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