ASTM C515-95(2001)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: C 515 – 95 (Reapproved 2001)
Standard Specification for
Chemical-Resistant Ceramic Tower Packings
This standard is issued under the fixed designation C 515; 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 perforated cylinders, and curved saddles. These shapes are
used within columns or towers to provide inert surfaces for
1.1 This specification covers fired ceramic shapes formed
promotion of energy transfer or chemical reaction between
from naturally occurring clays and from compounded bodies
liquids and liquids, gases and liquids, and gases and gases.
that are used as packing in tower installations. These ceramic
3.1.1.1 Discussion—Clay: An earthy or stony mineral ag-
units are designed primarily for use in process equipment for
gregate consisting, essentially of hydrous silicates of alumina,
the chemical or allied industries.
plasticwhensufficientlypulverizedandwetted,rigidwhendry,
1.2 The physical and chemical properties that affect quality
and vitreous when fired at a sufficiently high temperature.
of packing materials are covered in this specification. Proper-
3.1.2 chemical stoneware tower packing—pieces manufac-
ties that affect actual operational efficiency or characteristics of
tured from specially compounded bodies consisting of clays
processing towers are not covered.
and other minerals, of natural origin.
1.3 The values stated in inch-pound units are to be regarded
3.1.3 chemical porcelain tower packing—pieces manufac-
as the standard. The values given in parentheses are for
tured from specially compounded bodies, consisting of refined
information only.
clays and other naturally occurring minerals. These pieces are
1.4 The following precautionary statement pertains to the
characteristically smooth-textured, vitreous, and white or light
test method portion only, Section 7, of this standard. This
gray in color.
standard does not purport to address all of the safety concerns,
if any, associated with its use. It is the responsibility of the user
4. Shapes, Sizes, and Quantities
of this standard to establish appropriate safety and health
4.1 The number of dumped pieces of cylindrical-type pack-
practices and determine the applicability of regulatory limita-
ing per cubic foot shall conform to the requirements for each
tions prior to use.
size of rings, packings, and saddles as specified in Table 1,
2. Referenced Documents Table 2, and Table 3.
2.1 ASTM Standards:
5. Tolerances for Rings
C 279 Specification for Chemical-Resistant Masonry Units
5.1 Dimensional Accuracy—The average outside diameter
C 373 Test Method for Water Absorption, Bulk Density,
and average length shall be within 65 % of specified size for
Apparent Porosity, andApparent Specific Gravity of Fired
3 80 % of a lot, and within 610 % of specified size for 100 % of
Whiteware Products
4 a lot.
E4 Practices for Force Verification of Testing Machines
5.2 Measurement of the ring shall be made with calipers,
3. Terminology avoiding flashes, protrusions, and obviously defective areas.
The average outside diameter shall be determined as one half
3.1 Definitions:
the sum of the maximum and minimum outside diameters. The
3.1.1 tower packing—a term covering variously shaped
average length shall be determined as one half the sum of the
ceramic pieces such as spheres, cylindrical rings with either
maximum and minimum lengths.
normal or angular ends, rings with included obstructions,
5.3 Ovalness—The difference between maximum and mini-
mum outside diameters of any ring in a lot shall not exceed
This specification is under the jurisdiction of ASTM Committee C15 on 10 % of the specified size.
Manufactured Masonry Units and is the direct responsibility of Subcommittee
5.4 Inspection—The sample plan and procedure shall be as
C15.02 on Brick and Structural Clay Tile.
agreed upon by the supplier and purchaser at time of purchase.
Current edition approved Nov. 10, 1995. Published February 1996. Originally
published as C 515 – 63 T. Last previous edition C 515 – 86 (1992).
NOTE 1—See Table 2 for piece size counts of saddles which define size
Annual Book of ASTM Standards, Vol 04.05.
tolerances.
Annual Book of ASTM Standards, Vol 15.02.
Annual Book of ASTM Standards, Vol 03.01.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
C 515 – 95 (2001)
TABLE 1 Requirements For Shapes, Sizes, and Quantities TABLE 3 Requirements for Shapes, Sizes, and
A
of Rings Quantities of Saddles
Raschig Rings Berl Saddles Intalox Saddles
Approximate Minimum Minimum
Nominal Wall Number per Size, in. Number per Size, in. Number per
A
Size, in. (mm)
B B C B C
Thickness, in. (mm) Cubic Foot (mm) Cubic Foot (mm) Cubic Foot
3 3 3
(0.03 m ) (0.03 m ) (0.03 m )
1 1 1 1
⁄4 (6.4) ⁄32 to ⁄16 (0.8 to 1.6) 79 200 1-4 96 050 ⁄4 99 450
5 1 1 1
⁄16 (7.9) ⁄16 (1.6) 36 000 ⁄2 15 840 ⁄2 18 630
C
3 3 1 3 3
⁄8 (9.5) ⁄32 to ⁄16 (2.4 to 1.6) 22 500 ⁄4 4 700 ⁄4 6110
1 3
⁄2 (12.7) ⁄32 (2.4) 9 960 1 2 070 1 2 240
C
5 3 1 1 1
⁄8 (15.9) ⁄32 to ⁄8 (2.4 to 3.2) 5 360 1 ⁄2 630 1 ⁄2 675
C
3 3 1
⁄4 (19.1) ⁄32 to ⁄8 (2.4 to 3.2) 2 890 2 238 2 257
1 (25.4) ⁄8 (3.2) 1 260
A
Saddleshapesshallconformtosamplespreviouslyapprovedbytheconsumer.
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
...