ASTM D5000-05

Standard Practice for Evaluating Activity of Clay Elements Using a Side-Stream Sensor (Withdrawn 2014)

SIGNIFICANCE AND USE
Clay elements are widely used in aviation fuel handling systems to adsorb polar contaminants that are picked up in shipments by tanker, barge, or pipeline from refineries to terminals, airports, or both. Some of these contaminants such as surfactants interfere with efficient operation of filter-separator units that remove water from fuel.
In order to determine whether the clay elements are spent, it is necessary to test fuel both into and out of clay treatment vessels frequently. Clay elements must be changed when no improvement in quality is noted. Unless carried out frequently, such testing may not disclose a deactivated clay treatment vessel in time to prevent failure of downstream filter/separators.
To avoid such failures, a small sample of clay in a clay holder contained in a sidestream installation that receives flow proportional to the main stream flow is evaluated periodically using a reference fuel containing a known surfactant. When the rating of the reference fuel by Test Method D 3948 indicates that the capsule clay is becoming spent, the elements in the main filter vessel are ready for change.
SCOPE
1.1 This practice describes a field procedure to determine whether the useful life of the clay has been exceeded in canister or bag-type clay elements that are installed in ground filtration units of aviation fuel handling systems.
1.2 The field procedure utilizes the apparatus of Test Methods D3948 to periodically test a small clay capsule installed in a sidestream around a clay treatment vessel that receives a fixed ratio of the same fuel that flows through the clay elements in the vessel.
1.3 The values stated in SI units are to be regarded as standard. The inch-pound units in parentheses are for information only.
1.4  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.
WITHDRAWN RATIONALE
This practice describes a field procedure to determine whether the useful life of the clay has been exceeded in canister or bag-type clay elements that are installed in ground filtration units of aviation fuel handling systems.
Formerly under the jurisdiction of Committee D02 on Petroleum Products, Liquid Fuels, and Lubricants, this practice was withdrawn in July 2014 in accordance with section 10.5.3.1 of the Regulations Governing ASTM Technical Committees, which requires that standards shall be updated by the end of the eighth year since the last approval date.

General Information

• Status: Withdrawn
• Publication Date: 31-Oct-2005
• Withdrawal Date: 24-Jul-2014
• ICS: 91.100.15 - Mineral materials and products
• Technical Committee: D02 - Petroleum Products, Liquid Fuels, and Lubricants
• Drafting Committee: D02.J0.05 - Fuel Cleanliness

Relations

• Replaces: ASTM D5000-89(2005) - Standard Practice for Evaluating Activity of Clay Elements Using a Side-Stream Sensor
• Effective Date: 01-Nov-2005

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: D5000 − 05 AnAmerican National Standard
Standard Practice for
Evaluating Activity of Clay Elements Using a Side-Stream
1
Sensor
This standard is issued under the fixed designation D5000; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
INTRODUCTION
Calcined clay is a widely used adsorptive medium for removing polar contaminants and additives
from petroleum fluids. In refineries, clay is installed in large bed-type vessels to refine products such
as lubricants or aviation turbine fuel. In the field, clay is usually used in canister or bag type elements
installed as a bank of elements in a vessel to remove traces of contaminants, particularly from
non-additive jet fuel immediately before delivery to an airport.
1. Scope* 3. Terminology
1.1 This practice describes a field procedure to determine 3.1 Definitions:
whethertheusefullifeoftheclayhasbeenexceededincanister
3.1.1 surfactants—surface active molecular species that ex-
or bag-type clay elements that are installed in ground filtration
hibit both water soluble and oil soluble properties, and affect
units of aviation fuel handling systems.
the physical behavior at the interface between water and oil
1.2 The field procedure utilizes the apparatus of Test phases by forming emulsions or changing the wetting charac-
Method D3948 to periodically test a small clay capsule teristics of solid surfaces exposed to water and oil.
installed in a sidestream around a clay treatment vessel that
3.2 Definitions of Terms Specific to This Standard:
receives a fixed ratio of the same fuel that flows through the
3.2.1 active limit—the Micro-Separometer (MSEP) rating
clay elements in the vessel.
byTest Method D3948 of the effluent from a clay monitor that
1.3 The values stated in SI units are to be regarded as
represents low surfactant content and therefore continued
standard. The values given in parentheses are for information
activity of the clay for adsorption.
only.
3.2.2 clay—a naturally occurring mineral, largely hydrous
1.4 This standard does not purport to address all of the
aluminum silicate, calcined at high temperature to remove
safety concerns, if any, associated with its use. It is the
water and volatile matter, used in granular form as an adsorp-
responsibility of the user of this standard to establish appro-
tive media for removing polar compounds that are present in
priate safety and health practices and determine the applica-
many hydrocarbon fluids.
bility of regulatory limitations prior to use.
3.2.3 clay treatment—a process for exposing fuels and
2. Referenced Documents
blending components at ambient temperatures to granulated
2
2.1 ASTM Standards:
calcined clay in order to remove polar impurities such as
D3948TestMethodforDeterminingWaterSeparationChar-
surfactants.
acteristicsofAviationTurbineFuelsbyPortableSeparom-
3.2.4 deactivation of clay media—results when adsorptive
eter
surfaces are no longer capable of adsorbing polar species and
improving the quality of the feed stream.
1
This practice is under the jurisdiction ofASTM Committee D02 on Petroleum
3.2.5 deactive limit—the MSEP rating by Test Method
Products and Lubricants and is the direct responsibility of Subcommittee D02.J0.05
D3948 of the effluent from a clay monitor that represents high
on Fuel Cleanliness.
Current edition approved Nov. 1, 2005. Published November 2005. Originally
surfactantcontentandthereforethedeactivationoftheclayfor
approved in 1989. Last previous edition approved in 2005 as D5000–89(2005).
adsorption.
DOI: 10.1520/D5000-05.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
3.2.6 sidestream—flow system that parallels the main flow
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
stream into and out of a unit, such as a vessel, holding filter
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. elements but usually operating at a lower flow rate.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D5000 − 05
FIG. 1 Schematic of Clay Sidestream Sensor Installation
4. Summary of Practice
FIG. 2 Clay Side-Stream Sensor
4.1 Asample of the clay from the same model element that
is installed in a clay treatment vessel is placed into a clay
holder that is then mounted in a sidestream cabinet that
terminals, airports, or both. Some of these contaminants such
receivesflowfromaninletprobeatarateproportionalto
...