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ASTM D7085-04(2018)

(Guide)

Standard Guide for Determination of Chemical Elements in Fluid Catalytic Cracking Catalysts by X-ray Fluorescence Spectrometry (XRF)

Standard Guide for Determination of Chemical Elements in Fluid Catalytic Cracking Catalysts by X-ray Fluorescence Spectrometry (XRF)

SIGNIFICANCE AND USE
4.1 The chemical composition of fresh FCC catalyst and equilibrium FCC catalyst is a predictor of catalyst performance. The analysis of catalyst fines also provides information on the performance of the FCC unit and the fines collection device(s).  
4.2 The chemical composition of equilibrium FCC catalyst is a measure of the hazardous nature or toxicity of the material for purposes of disposal or secondary use.
SCOPE
1.1 This guide covers several comparable procedures for the quantitative chemical analysis of up to 29 elements in fluid catalytic cracking (FCC) catalyst by X-ray fluorescence spectrometry (XRF). Additional elements may be added.  
1.2 This guide is applicable to fresh FCC catalyst, equilibrium FCC catalyst, spent FCC catalyst, and FCC catalyst fines.  
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.3.1 The units of ppm (mg/kg) are used instead of wt% in Tables X2.3-X2.5 for reporting concentration of certain elements because of industry convention and because most of these elements are present at trace levels.  
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

Status
Published
Publication Date
31-Oct-2018
ICS
71.040.50 - Physicochemical methods of analysis
Technical Committee
D32 - Catalysts
Drafting Committee
D32.03 - Chemical Composition
Current Stage
Ref Project

Relations

Referred By
ASTM D8088-16(2022) - Standard Practice for Determination of the Six Major Rare Earth Elements in Fluid Catalytic Cracking Catalysts, Zeolites, Additives, and Related Materials by Inductively Coupled Plasma Optical Emission Spectroscopy
Effective Date
01-Nov-2018

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ASTM D7085-04(2018) - Standard Guide for Determination of Chemical Elements in Fluid Catalytic Cracking Catalysts by X-ray Fluorescence Spectrometry (XRF)ASTM D7085-04(2018) - Standard Guide for Determination of Chemical Elements in Fluid Catalytic Cracking Catalysts by X-ray Fluorescence Spectrometry (XRF)
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ASTM D7085-04(2018) - Standard Guide for Determination of Chemical Elements in Fluid Catalytic Cracking Catalysts by X-ray Fluorescence Spectrometry (XRF)
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This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: D7085 − 04 (Reapproved 2018)
Standard Guide for
Determination of Chemical Elements in Fluid Catalytic
Cracking Catalysts by X-ray Fluorescence Spectrometry
1
(XRF)
This standard is issued under the fixed designation D7085; 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 Dispersive X-Ray Fluorescence (XRF) Systems (With-
3
drawn 2008)
1.1 Thisguidecoversseveralcomparableproceduresforthe
C1118 Guide for Selecting Components for Wavelength-
quantitative chemical analysis of up to 29 elements in fluid
Dispersive X-Ray Fluorescence (XRF) Systems (With-
catalytic cracking (FCC) catalyst by X-ray fluorescence spec-
3
drawn 2011)
trometry (XRF). Additional elements may be added.
D1977 Test Method for Nickel and Vanadium in FCC
1.2 This guide is applicable to fresh FCC catalyst, equilib- Equilibrium Catalysts by Hydrofluoric/Sulfuric Acid De-
composition and Atomic Spectroscopic Analysis
rium FCC catalyst, spent FCC catalyst, and FCC catalyst fines.
E1172 Practice for Describing and Specifying a Wavelength
1.3 The values stated in SI units are to be regarded as
Dispersive X-Ray Spectrometer
standard. No other units of measurement are included in this
E1361 Guide for Correction of Interelement Effects in
standard.
X-Ray Spectrometric Analysis
1.3.1 The units of ppm (mg/kg) are used instead of wt% in
E1621 Guide for ElementalAnalysis by Wavelength Disper-
Tables X2.3-X2.5 for reporting concentration of certain ele-
sive X-Ray Fluorescence Spectrometry
ments because of industry convention and because most of
E1622 Practice for Correction of Spectral Line Overlap in
these elements are present at trace levels.
Wavelength-Dispersive X-Ray Spectrometry (Withdrawn
3
2006)
1.4 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
3. Summary of Guide
responsibility of the user of this standard to establish appro-
3.1 The test specimen is prepared with a clean, uniform, flat
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use. surface. Two commonly used test methods of preparing test
specimens are listed: briquetting a powder (Test Method A,
1.5 This international standard was developed in accor-
Sections8–15) and fusing a powder into a glass bead (Test
dance with internationally recognized principles on standard-
Method B, Sections16–23). This surface of the fused or
ization established in the Decision on Principles for the
briquetted specimen is irradiated with a primary source of X
Development of International Standards, Guides and Recom-
rays. The secondary X rays produced in the specimen are
mendations issued by the World Trade Organization Technical
characteristic of the chemical elements present in the speci-
Barriers to Trade (TBT) Committee.
men.TwotypesofXRFinstrumentationmaybeusedtocollect
and process the X-ray spectra. Using a wavelength-dispersive
2. Referenced Documents
X-ray spectrometer, the secondary X rays produced in the
2
2.1 ASTM Standards:
specimen are dispersed according to their wavelength by
C982 Guide for Selecting Components for Energy-
means of crystals or synthetic multilayers. The X-ray intensi-
ties are measured by detectors set at selected wavelengths and
recorded as counts (number of X rays impinging on the
1
detector per unit time). Concentrations of the elements are
This guide is under the jurisdiction ofASTM Committee D32 on Catalysts and
is the direct responsibility of Subcommittee D32.03 on Chemical Composition.
determined from the measured intensities using calibration
Current edition approved Nov. 1, 2018. Published December 2018. Originally
curves prepared from suitable reference materials. Using an
ɛ1
approved in 2004. Last previous edition approved in 2010 as D7085 – 04(2010) .
energy-dispersive X-ray spectrometer, the secondary X rays
DOI:10.1520/D7085-04R18.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
3
Standards volume information, refer to the standard’s Document Summary page on The last approved version of this historical standard is referenced on
the ASTM website. www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D7085 − 04 (2018)
...

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4.1 ZSM-5 is a siliceous zeolite that can be crystallized with SiO2/Al2O3 ratio in the range of 20 to greater than 1000. ZSM-5, upon modification to the H-cation form (HZSM-5) in a post-crystallization step, has been used since the 1970s as a shape selective, acid-site catalyst for petroleum refining and petrochemicals production, including such processes as alkylation, isomerization, fluid cracking catalysis (FCC), and methanol-to-gasoline. The most siliceous member of the ZSM-5 family, sometimes called silicalite, is hydrophobic and it is used for selective sorption of organic molecules from water-containing systems.  
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5.1 This practice is suitable for the determination of extractable substances that may be found in materials used in systems or components requiring a high level of cleanliness, such as oxygen systems. Soft goods, such as seals and valve seats, may be tested as received. Gloves and wipes, or samples thereof, to be used in cleaning operations may be evaluated prior to use to ensure that the proposed extracting agent does not extract or deposit chemicals, or both, on the surface to be cleaned.  
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ASTM E135-23a(Terminology)
Standard Terminology Relating to Analytical Chemistry for Metals, Ores, and Related Materials

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3.1 Definitions given in Section 4 are intended for use in all standards on analytical chemistry for metals, ores, and related materials. The definitions should be used uniformly and consistently. The purpose of these definitions is to promote clear understanding and interpretation of the standards in which the terms are used.
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1.2 A definition is a single sentence with additional information included in a discussion.  
1.3 The date of last reapproval or revision of a term is in parentheses at the end of the definition.  
1.4 Definitions identical to those published by another standards organization or ASTM committee are identified with the name of the organization and the identifying document or ASTM committee and standard.  
1.5 Definitions specific to a particular field (such as emission spectrometry) are identified with an italicized introductory phrase.  
1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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Standard Practice for High-Resolution Gamma-Ray Spectrometry of Water

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1.1 This practice covers the measurement of gamma-ray emitting radionuclides in water by means of gamma-ray spectrometry. It is applicable to nuclides emitting gamma-rays with energies greater than 45 keV. For typical counting systems and sample types, activity levels of about 40 Bq are easily measured and sensitivities as low as 0.4 Bq are found for many nuclides. Count rates in excess of 2000 counts per second should be avoided because of electronic limitations. High count rate samples can be accommodated by dilution, by increasing the sample to detector distance, or by using digital signal processors.  
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1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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5.1 Many competent measurement laboratories comply with accepted quality system requirements such as ISO 9001, QS 9000, or ISO 17025. When using standard test methods, the measurement results should agree with those from other similar laboratories within the combined uncertainty limits of the laboratories’ measurement systems. It is for this reason that quality system requirements demand that a statement of the uncertainty of the test results accompany every test result.  
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1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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