ASTM F1348/F1348M-91(2007)
(Specification)Standard Specification for Pneumatic Rotary Descaling Machines
Standard Specification for Pneumatic Rotary Descaling Machines
ABSTRACT
This specification covers requirements for pneumatic rotary descaling machines for removal of paint, rust, scale, nonskid deck covering and other coatings from steel and aluminum structures. These portable machines are intended for use in a marine environment, subject to salt air and spray during use and high humidity during storage. De scaling machines are available in two types and two classes, as follows: Type 1 which is the hand-held and Type 2 which is the deck-supported type. Both types have two classes which are Class A in inch-pound design and Class B in SI metric design. Hubs for use with descaling machines are also available in four classes: Class A is a hub that is non-metallic, nonwoven and non-contaminating, Class B is a peening hub for aluminum surfaces, Class C is a hub of metallic hammer type used for steel surfaces and Class D is a hub of metallic cutter type use for steel surfaces. A service life test shall be conducted on an uncoated steel test plate and each hub shall be subjected to a performance test.
SCOPE
1.1 This specification covers requirements for pneumatic rotary descaling machines for removal of paint, rust, scale, nonskid deck covering, and other coatings from steel and aluminum structures. These portable machines are intended for use in a marine environment, subject to salt air and spray during use and high humidity during storage.
1.2 The values stated in either inch-pound units or SI units are to be regarded separately as standard. The values stated in each system are not exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the specification.
1.3 The following precautionary statement pertains to the test method portion only, Section 12, of this specification: 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 17.2.1.
General Information
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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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:F1348/F1348M −91(Reapproved 2007) An American National Standard
Standard Specification for
Pneumatic Rotary Descaling Machines
ThisstandardisissuedunderthefixeddesignationF1348/F1348M;thenumberimmediatelyfollowingthedesignationindicatestheyear
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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope 2.2 Federal Specifications:
Fed. Std. No. 123 Marking for Shipment (Civil Agencies)
1.1 This specification covers requirements for pneumatic
PPP-B-566 Boxes, Folding, Paperboard
rotary descaling machines for removal of paint, rust, scale,
PPP-B-601 Boxes, Wood, Cleated-Plywood
nonskid deck covering, and other coatings from steel and
PPP-B-621 Boxes, Wood, Nailed and Lock-Corner
aluminum structures.These portable machines are intended for
PPP-B-636 Boxes, Shipping, Fiberboard
use in a marine environment, subject to salt air and spray
PPP-B-640 Boxes, Fiberboard, Corrugated, Triple Wall
during use and high humidity during storage.
PPP-B-676 Boxes, Setup
1.2 The values stated in either inch-pound units or SI units 4
2.3 Military Specifications:
are to be regarded separately as standard. The values stated in
MIL-STD-129 Marking for Shipment and Storage
each system are not exact equivalents; therefore, each system
MIL-STD-147 Palletized Unit Loads
shall be used independently of the other. Combining values
MIL-B-117 Bags, Sleeves and Tubing
from the two systems may result in nonconformance with the
MIL-H-775 Hose, Hose Assemblies; Rubber, Plastic, Fabric
specification.
or Metal (Including Tubing); and Associated Hardware:
1.3 The following precautionary statement pertains to the
Packaging of
test method portion only, Section 12, of this specification: This MIL-L-17331 Lubricating Oil, Steam Turbine, Noncorro-
standard does not purport to address all of the safety concerns,
sive
if any, associated with its use. It is the responsibility of the user DOD-G-24508 Grease, High Performance, Ball Roller
of this standard to establish appropriate safety and health
Bearing, Continuous Run to 300°F
practices and determine the applicability of regulatory limita- 2.4 ABS Publication:
tions prior to use. Specific precautionary statements are given ABS Rules for Building and Classing Steel Vessels
in 17.2.1.
3. Classification
2. Referenced Documents
3.1 Descaling machines are available in two types and two
classes, as follows:
2.1 ASTM Standards:
3.1.1 Type 1, Hand-Held:
B209 Specification for Aluminum and Aluminum-Alloy
3.1.1.1 Class A—Inch-pound design, and
Sheet and Plate
3.1.1.2 Class B—SI metric design.
D4417 Test Methods for Field Measurement of Surface
3.1.2 Type 2, Deck-Supported:
Profile of Blast Cleaned Steel
3.1.2.1 Class A—Inch-pound design, and
F1166 Practice for Human Engineering Design for Marine
3.1.2.2 Class B—SI metric design.
Systems, Equipment, and Facilities
3.2 Hubs for use with descaling machines are available in
four classes, as follows:
This specification is under the jurisdiction of ASTM Committee F25 on Ships
and Marine Technology and is the direct responsibility of Subcommittee F25.07 on
General Requirements. AvailablefromU.S.GovernmentPrintingOfficeSuperintendentofDocuments,
Current edition approved Dec. 1, 2007. Published January 2008. Originally 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401, http://
approved in 1991. Last previous edition approved in 2002 as F1348/ www.access.gpo.gov.
F1348M – 91(2002). DOI: 10.1520/F1348_F1348M-91R07. Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http://
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM www.dodssp.daps.mil.
Standards volume information, refer to the standard’s Document Summary page on Available from American Bureau of Shipping (ABS), ABS Plaza, 16855
the ASTM website. Northchase Dr., Houston, TX 77060, http://www.eagle.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
F1348/F1348M−91 (2007)
3.2.1 Class A—Nonmetallic, nonwoven, noncontaminating, hubs attached, the machine shall sit level on the deck with the
3.2.2 Class B—Peening hub for aluminum surfaces, abrasive hubs in contact with the deck and not interfere with
3.2.3 Class C—Metallic hammer type for steel surfaces, and deck coating removal process. The machine shall easily propel
3.2.4 Class D—Metallic cutter type for steel surfaces. itself or be propelled by the operator across the deck without
overstressing the operator (see 6.2). The Type 2 machine shall
4. Ordering Information
remove deck coating to within 1 ⁄2 in. [40 mm] of the
bulkheads, coamings, and other immovable objects.
4.1 Orders for material under this specification shall include
the following:
6.2 Human Engineering—The machines shall be in accor-
4.1.1 Title, number, and date of this specification,
dance with the human engineering criteria of Practice F1166
4.1.2 Quantity,
except where such requirements conflict with the requirements
4.1.3 Type and class required (see Section 3),
of this specification. The machines shall incorporate the
4.1.4 Test and inspection certification requirements, if ap-
maintainability requirements of Practice F1166 and shall per-
plicable (see Section 15),
mit safe and efficient performance of operation and mainte-
4.1.5 Test report requirements (see Section 15),
nance by the fifth percentile female to the ninety-fifth percen-
4.1.6 Technical manual requirements (see Section 16),
tile male, as defined in Practice F1166. Clearance shall be
4.1.7 Special marking required (see 18.3),
provided around each component, part or control so that an
4.1.8 Level of preservation, packaging, packing, and mark-
individual with aforementioned percentile body dimensions
ing required (see Section 17 and Supplementary Require-
and physical capabilities can safely operate, maintain, remove,
ments), and
or replace any item using normally available tools and test
4.1.9 Lubrication requirements of Supplementary Require-
equipment. The controls required for operation and mainte-
ments, if applicable (see Section S3).
nance shall be in accordance with Practice F1166 and shall not
require operator forces to exceed the strength limitations listed
5. Materials and Manufacture
therein.
5.1 Asbestos and Cadmium:
6.3 Interchangeability—Component parts and assemblies
5.1.1 Material used in the machines, or in any components,
peculiar to each type and class of machine from any one
accessories, repair parts, tools, and packing and packaging
manufacturer shall be fully interchangeable. Such interchange-
shall be free of asbestos and cadmium.
ability shall not require any alterations or modifications.
5.2 Metal Parts—Metal parts shall be corrosion resistant or
6.4 Dimensions and Weight—The machines, fully as-
treated to resist corrosion.
sembled with guards; debris collector attachment (less hoses
and collection container); and with operating handles (Type 2)
6. Mechanical Properties
lockedinitsoperatingposition;fullylubricatedandreadyinall
6.1 The machines shall be powered by an air motor and
aspects for operation (less air hose and filter, evaporator and
shall accept each of the rotary hubs (see 6.9).
lubricator attachments) shall not exceed the maximum dimen-
6.1.1 Type 1—TheType 1 machine shall be a hand-held unit
sions and weight shown in Table 1.
having a minimum of two handles, one of which shall house
6.5 Air Motor—The machines shall be driven by air motors
the trigger mechanism. The trigger mechanism shall be of the
that operate on the minimum air supplies as shown in Table 2.
spring-loaded “dead man” type and shall immediately shut off
6.6 Guards—Machines of both Type 1 and Type 2 shall be
air flow to the motor when released. The arrangement of the
provided with guards that protect the operator from inadvertent
handles and trigger mechanism shall permit right- or left-
contact with moving parts and prevent uncontrolled scattering
handed operation with equal ease. The direction of rotation of
of chips or scale removed by the machine. These guards shall
the hubs shall tend to propel the machine in the forward
not interfere with the performance of the machine throughout
direction, away from the operator. The Type 1 machine shall
the machine’s useful life, unduly decrease any of the hub’s
remove coatings to within ⁄4 in. [6 mm] of bulkheads,
physical dimensions or wear, or interfere with changing of the
coamings, decks, and other immovable objects.
hubs. The guards/rotary hub containment shall be constructed
6.1.2 Type 2—The Type 2 machine shall be a deck sup-
to accommodate a debris collection system.
ported unit with a T-shaped operating handle. The operating
handle shall be adjustable for height, rigid and strong enough
6.7 Air Connections—Air connections for both Type 1 and
to operate the machine without bending, and long enough to
Type 2 machines shall be of the quick disconnect type. The
allow any operator with the percentile body dimensions speci-
locations of the air connection shall be such that the hose does
fied herein (see 6.2) to operate the machine while walking
behind it in a natural walking position.The air hose connection
and trigger mechanism shall be located on the T-handle. The
TABLE 1 Maximum Dimensions and Weights
trigger mechanism shall be of the spring-loaded “dead man”
Type 1 Type 1 Type 2 Type 2
type and shall immediately shut off air flow to the motor when Class A Class B Class A Class B
released. The handle shall detach or be adjustable to and Length 16 in. 410 mm 36 in. 915 mm
Width 6 in. 155 mm 16 in. 410 mm
lockable in the vertical position for storage. The machine shall
Height 12 in. 306 mm 48 in. 1220 mm
be provided with at least two wheels used to move the
Weight 5lb 2.3kg 110lb 50kg
machine. With the handle, air hose and each of the abrasive
F1348/F1348M−91 (2007)
TABLE 2 Air Supplies TABLE 4 Minimum Path Width
Type 1 Type 1 Type 2 Type 2 Hub for: Minimum Path Width
Class A Class B Class A Class B
Type 1 Class A machine 2 in.
2 2
Air pressure 80 lb/in. 550 kPa 80 lb/in. 550 kPa Type 1 Class B machine 50 mm
3 3 3 3
Air volume 18 ft /min 0.51 m /min 125 ft /min 3.54 m /min Type 2 Class A machine 5 in.
Type 2 Class B machine 125 mm
2 2
not interfere with operation of the machine or the operator.The
TABLE 5 Removal Rate; ft /h (m /h)
inside diameter of the connections shall be in accordance with
Paint Rust/Scale Nonskid
Hub
Table 3.
Class A Class B Class A Class B Class A Class B
Class
Machine Machine Machine Machine Machine Machine
6.8 Lubrication—Lubrication fittings shall be installed so
A 50 4.5 25 2.3 . .
that lubrication can be accomplished without disassembly of
B 65 6.0 35 3.3 . .
the machine (see 6.2). Lubrication materials shall be high-
C 85 8.0 . . 20 1.9
D 85 8.0 25 2.3 25 2.3
temperature lubricating oil or high-performance grease.
6.9 Hubs:
6.9.1 Hubs for each type and class of machine shall clean a
2 2
TABLE 6 Removal Rate; ft /h (m /h)
pathofwidthnotlessthanthatshowninTable4.Hubsforeach
Paint Rust/Scale Nonskid
Hub
type, class, and manufacture of machine shall be interchange-
Class A Class B Class A Class B Class A Class B
Class
Machine Machine Machine Machine Machine Machine
able with hubs of any other machine of the same type, class,
and manufacture, using only the normally available tools (see A 200 18.5 150 13.9 . . . . . .
B 300 27.9 200 18.5 . . . . . .
8.1.2) for the interchange.
C 350 32.5 . . . . . . 80 7.4
6.9.2 Hubs shall be of the following classes, classified by
D 350 32.5 200 18.5 100 9.3
intended composition, function, and service life, as follows:
6.9.2.1 Class A Hub—The ClassAhub shall be nonmetallic,
nonwoven, noncontaminating, and shall remove paint, rust, or
7.2 Stability:
scale. The Class A hub shall feather the edge of a painted
7.2.1 Type 1 Machine—The assembled Type 1 machine
surfaceinasmoothtaperfromthepaintedaluminumsurfaceto
shall operate at any angle from the horizontal to vertical
bare metal, and shall not remove, erode, or groove metal
(including the overhead) without loss of power or descaling
surfaces.The ClassAhub shall have a minimum service life of
efficiency.
8h.
7.2.2 Type 2 Machine—The assembled Type 2 machine
6.9.2.2 Class B Hub—The Class B hub shall remove paint,
shall operate without loss of power and descaling efficiency
rust, or scale and shall peen the aluminum surface to a profile
and without tipping when inclined at an angle of 15° from the
of1.0to3.0mils[0.0025to0.0076mm].TheClassBhubshall
horizontal in any direction.
have a minimum service life of 50 h.
8. Attachments
6.9.2.3 Class C Hub—The Class C hub shall be a metallic
hammer type assembly and shall remove paint and nonskid
8.1 Themachineshallbefurnishedinkitform,witheachkit
covering on steel surfaces. The Class C hub shall operate over
containing the following items besides the basic machine:
protrusionsorobstructionsonthedecksurface,suchasboltsor
8.1.1 One Class A hub,
padeyes,uptoaheightof1in.[25mm],withoutdamagetothe
8.1.2 One Class B hub,
hubormachine.TheClassChubshallhaveaminimumservice
8.1.3 One Class C hub,
life of 100 h.
8.1.4 One Class D hub,
6.9.2.4 Class D Hub—The Class D hub shall be a metallic
8.1.5 One air hose with fittings,
type cutter assembly that removes paint, rust, scale, and
8.1.6 One hub-changing tool (or tool set),
nonskid deck coverings on steel surfaces. The Class D hub
8.1.7 One debris collector,
shall have a minimum service life of 30 h.
8.1.8 One carrying case, and
8.1.9 One in-line filter/evaporator/lubricator.
7. Performance Requirements
8.1.10 Air Hose—Air hoses shall be ⁄8 in. [10 mm] forType
7.1 Removal Rate—The minimum removal rate when tested
1 machine and ⁄4 in. [19 mm] for Type 2 machine with
in accordance with Section 12 shall be as specified in Table 5
quick-disconnectconnectionsandanairshutoffvalvethatshall
and Table 6.
immediatelyshutofftheairwhenthehoseisdisconnected.The
7.1.1 Type 1 Machine—See Table 5.
hose for the Type 1 machine shall be 50 ft [15 m] long and the
7.1.2 Type 2 Machine—See Table 6.
hose for the Type 2 machine shall be 100 ft [30 m] long.
8.1.11 Hub Changing Tool—Astandardcommerciallyavail-
able tool for changing hubs shall be provided. The tools shall
TABLE 3 Air Connections
not be unique to a specific supplier.
Type 1 Type 1 Type 2 Type 2
8.1.12 Carrying Case—The carrying cases for Type 1 and
Class A Class B Class A Class B
Type 2 machines shall be corrosion-resistant, fire-resistant,
1 1
⁄4
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