ASTM C515-95

Standard Specification for Chemical-Resistant Ceramic Tower Packings

SCOPE
1.1 This specification covers fired ceramic shapes formed from naturally occurring clays and from compounded bodies that are used as packing in tower installations. These ceramic units are designed primarily for use in process equipment for the chemical or allied industries.
1.2 The physical and chemical properties that affect quality of packing materials are covered in this specification. Properties that affect actual operational efficiency or characteristics of processing towers are not covered.
1.3 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
1.4 The following precautionary statement pertains to the test method portion only, Section 7, of this standard. 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.

General Information

• Status: Historical
• Publication Date: 31-Dec-2000
• Technical Committee: C15 - Manufactured Masonry Units

Relations

• Replaced By: ASTM C515-95(2001) - Standard Specification for Chemical-Resistant Ceramic Tower Packings
• Effective Date: 01-Jan-2001

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NOTICE: This standard has either been superseded and replaced by a new version or
withdrawn.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: C 515 – 95
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Specification for
1
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 3.1.1.1 Discussion—Clay: An earthy or stony mineral ag-
gregate consisting, essentially of hydrous silicates of alumina,
1.1 This specification covers fired ceramic shapes formed
plastic when sufficiently pulverized and wetted, rigid when dry,
from naturally occurring clays and from compounded bodies
and vitreous when fired at a sufficiently high temperature.
that are used as packing in tower installations. These ceramic
3.1.2 chemical stoneware tower packing—pieces manufac-
units are designed primarily for use in process equipment for
tured from specially compounded bodies consisting of clays
the chemical or allied industries.
and other minerals, of natural origin.
1.2 The physical and chemical properties that affect quality
3.1.3 chemical porcelain tower packing—pieces manufac-
of packing materials are covered in this specification. Proper-
tured from specially compounded bodies, consisting of refined
ties that affect actual operational efficiency or characteristics of
clays and other naturally occurring minerals. These pieces are
processing towers are not covered.
characteristically smooth-textured, vitreous, and white or light
1.3 The values stated in inch-pound units are to be regarded
gray in color.
as the standard. The values given in parentheses are for
information only.
4. Shapes, Sizes, and Quantities
1.4 The following precautionary statement pertains to the
test method portion only, Section 7, of this standard. This 4.1 The number of dumped pieces of cylindrical-type pack-
standard does not purport to address all of the safety concerns, ing per cubic foot shall conform to the requirements for each
if any, associated with its use. It is the responsibility of the user size of rings, packings, and saddles as specified in Table 1,
of this standard to establish appropriate safety and health Table 2, and Table 3.
practices and determine the applicability of regulatory limita-
tions prior to use. 5. Tolerances for Rings
5.1 Dimensional Accuracy—The average outside diameter
2. Referenced Documents
and average length shall be within 65 % of specified size for
2.1 ASTM Standards:
80 % of a lot, and within 610 % of specified size for 100 % of
2
C 279 Specification for Chemical-Resistant Masonry Units
a lot.
C 373 Test Method for Water Absorption, Bulk Density,
5.2 Measurement of the ring shall be made with calipers,
Apparent Porosity, and Apparent Specific Gravity of Fired
avoiding flashes, protrusions, and obviously defective areas.
3
Whiteware Products
The average outside diameter shall be determined as one half
4
E 4 Practices for Force Verification of Testing Machines
the sum of the maximum and minimum outside diameters. The
average length shall be determined as one half the sum of the
3. Terminology
maximum and minimum lengths.
3.1 Definitions:
5.3 Ovalness—The difference between maximum and mini-
3.1.1 tower packing—a term covering variously shaped
mum outside diameters of any ring in a lot shall not exceed
ceramic pieces such as spheres, cylindrical rings with either
10 % of the specified size.
normal or angular ends, rings with included obstructions,
5.4 Inspection—The sample plan and procedure shall be as
perforated cylinders, and curved saddles. These shapes are
agreed upon by the supplier and purchaser at time of purchase.
used within columns or towers to provide inert surfaces for
promotion of energy transfer or chemical reaction between NOTE 1—See Table 2 for piece size counts of saddles which define size
tolerances.
liquids and liquids, gases and liquids, and gases and gases.
6. Chemical Composition
1
This specification is under the jurisdiction of ASTM Committee C-15 on
6.1 The appearance of iron or other leachable impurities on
Manufactured Masonry Units and is the direct responsibility of Subcommittee
the surfaces may be cause for rejection if this is a matter of
C15.09 on Chemical-Resistant Units.
Current edition approved Nov. 10, 1995. Published February 1996. Originally
concern to the purchaser.
published as C 515 – 63 T. Last previous edition C 515 – 86 (1992).
6.2 The presence of undesirable trace elements such as
2
Annual Book of ASTM Standards, Vol 04.05.
3
boron is to be considered as a special case and will be treated
Annual B
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