ASTM C515-95(2007)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation:C515 −95(Reapproved 2007)
Standard Specification for
Chemical-Resistant Ceramic Tower Packings
This standard is issued under the fixed designation C515; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope normal or angular ends, rings with included obstructions,
perforated cylinders, and curved saddles. These shapes are
1.1 This specification covers fired ceramic shapes formed
used within columns or towers to provide inert surfaces for
from naturally occurring clays and from compounded bodies
promotion of energy transfer or chemical reaction between
that are used as packing in tower installations. These ceramic
liquids and liquids, gases and liquids, and gases and gases.
units are designed primarily for use in process equipment for
3.1.1.1 Discussion—Clay: An earthy or stony mineral ag-
the chemical or allied industries.
gregate consisting, essentially of hydrous silicates of alumina,
1.2 The physical and chemical properties that affect quality
plasticwhensufficientlypulverizedandwetted,rigidwhendry,
of packing materials are covered in this specification. Proper-
and vitreous when fired at a sufficiently high temperature.
ties that affect actual operational efficiency or characteristics of
3.1.2 chemical stoneware tower packing—pieces manufac-
processing towers are not covered.
tured from specially compounded bodies consisting of clays
1.3 The values stated in inch-pound units are to be regarded
and other minerals, of natural origin.
as the standard. The values given in parentheses are for
3.1.3 chemical porcelain tower packing—pieces manufac-
information only.
tured from specially compounded bodies, consisting of refined
1.4 The following precautionary statement pertains to the
clays and other naturally occurring minerals. These pieces are
test method portion only, Section 7, of this standard. This
characteristically smooth-textured, vitreous, and white or light
standard does not purport to address all of the safety concerns,
gray in color.
if any, associated with its use. It is the responsibility of the user
of this standard to establish appropriate safety and health
4. Shapes, Sizes, and Quantities
practices and determine the applicability of regulatory limita-
4.1 The number of dumped pieces of cylindrical-type pack-
tions prior to use.
ing per cubic foot shall conform to the requirements for each
size of rings, packings, and saddles as specified in Table 1,
2. Referenced Documents
Table 2, and Table 3.
2.1 ASTM Standards:
C279 Specification for Chemical-Resistant Masonry Units
5. Tolerances for Rings
C373 Test Method for Water Absorption, Bulk Density,
5.1 Dimensional Accuracy—The average outside diameter
Apparent Porosity, andApparent Specific Gravity of Fired
and average length shall be within 65 % of specified size for
Whiteware Products
80 % of a lot, and within 610 % of specified size for 100 % of
E4 Practices for Force Verification of Testing Machines
a lot.
3. Terminology
5.2 Measurement of the ring shall be made with calipers,
avoiding flashes, protrusions, and obviously defective areas.
3.1 Definitions:
The average outside diameter shall be determined as one half
3.1.1 tower packing—a term covering variously shaped
the sum of the maximum and minimum outside diameters. The
ceramic pieces such as spheres, cylindrical rings with either
average length shall be determined as one half the sum of the
maximum and minimum lengths.
This specification is under the jurisdiction of ASTM Committee D32 on
5.3 Ovalness—The difference between maximum and mini-
Catalysts and is the direct responsibility of Subcommittee D32.02 on Physical-
mum outside diameters of any ring in a lot shall not exceed
Mechanical Properties.
CurrenteditionapprovedJune1,2007.PublishedJuly2007.Originallyapproved
10 % of the specified size.
in 1963. Last previous edition approved in 2001 as C515–95(2001). DOI: 10.1520/
5.4 Inspection—The sample plan and procedure shall be as
C0515-95R07.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
agreed upon by the supplier and purchaser at time of purchase.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on NOTE 1—See Table 2 for piece size counts of saddles which define size
the ASTM website. tolerances.
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C515−95 (2007)
TABLE 1 Requirements For Shapes, Sizes, and Quantities TABLE 3 Requirements for Shapes, Sizes, and
A
of Rings Quantities of Saddles
Berl Saddles Intalox Saddles
Raschig Rings
Minimum Minimum
Approximate
Size, in. Size, in.
Number per Number per
Nominal Wall Number per
A
Size, in. (mm) B B
C C
B
(mm) Cubic Foot (mm) Cubic Foot
Thickness, in. (mm)
Cubic Foot
3 3
(0.03 m ) (0.03 m )
(0.03 m )
1 1 1
1-4 96 050 ⁄4 99 450
⁄4 (6.4) ⁄32 to ⁄16 (0.8 to 1.6) 79 200
1 1
5 1 ⁄2 15 840 ⁄2 18 630
⁄16 (7.9) ⁄16 (1.6) 36 000
3 3
C
3 3 1 ⁄4 4 700 ⁄4 6110
⁄8 (9.5) ⁄32 to ⁄16 (2.4 to 1.6) 22 500
1 3
1 2 070 1 2 240
⁄2 (12.7) ⁄32 (2.4) 9 960
1 1
C
5 3 1 1 ⁄2 630 1 ⁄2 675
⁄8 (15.9) ⁄32 to ⁄8 (2.4 to 3.2) 5 360
C
3 3 1
2 238 2 257
⁄4 (19.1) ⁄32 to ⁄8 (2.4 to 3.2) 2 890
1 (25.4) ⁄8 (3.2) 1 260 A
Saddle shapes shall conform to samples previously approved by the consumer.
1 3
1 ⁄4 (31.8) ⁄16 (4.8) 640 B
1 in. = 25.4 mm.
1 1
1 ⁄2 (38.1) ⁄4 (6.4) 360 C
See Footnote B to Table 1.
C
3 1
2 (50.8) ⁄16 to ⁄4 (4.8 to 6.4) 155
3 (76.2) ⁄8 (9.5) 64
...