ASTM G136-03(2016)
(Practice)Standard Practice for Determination of Soluble Residual Contaminants in Materials by Ultrasonic Extraction
Standard Practice for Determination of Soluble Residual Contaminants in Materials by Ultrasonic Extraction
SIGNIFICANCE AND USE
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.
5.2 Wipes or other cleaning equipment may be tested after use to determine the amount of contaminant removed from a surface.
Note 1: The amount of material extracted may be dependent upon the frequency and power density of the ultrasonic unit.
5.3 The extraction efficiency has been shown to vary with the frequency and power density of the ultrasonic unit. The unit, therefore, must be carefully evaluated to optimize the extraction conditions.
SCOPE
1.1 This practice may be used to extract nonvolatile and semivolatile residues from materials such as new and used gloves, new and used wipes, component soft goods, and so forth. When used with proposed cleaning materials (wipes, gloves, and so forth), this practice may be used to determine the potential of the proposed solvent or other fluids to extract contaminants (plasticizers, residual detergents, brighteners, and so forth.) and deposit them on the surface being cleaned.
1.2 This practice is not suitable for the evaluation of particulate contamination.
1.3 The values stated in SI units are to be regarded standard. No other units of measurement are included in this standard.
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.
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Designation: G136 − 03 (Reapproved 2016)
Standard Practice for
Determination of Soluble Residual Contaminants in
1
Materials by Ultrasonic Extraction
This standard is issued under the fixed designation G136; 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.
1. Scope 3. Terminology
1.1 This practice may be used to extract nonvolatile and 3.1 Definitions of Terms Specific to This Standard:
semivolatile residues from materials such as new and used 3.1.1 contaminant (contamination), n—unwantedmolecular
gloves, new and used wipes, component soft goods, and so and particulate matter that could affect or degrade the perfor-
forth. When used with proposed cleaning materials (wipes, mance of the components upon which they reside.
gloves, and so forth), this practice may be used to determine
3.1.2 contaminate, v—a process of contaminating.
the potential of the proposed solvent or other fluids to extract
3.1.3 nonvolatile residue (NVR), n—residual molecular and
contaminants (plasticizers, residual detergents, brighteners,
particulate matter remaining following the filtration and con-
and so forth.) and deposit them on the surface being cleaned.
trolled evaporation of liquid containing contaminants.
1.2 This practice is not suitable for the evaluation of
3.1.4 particle (particulate contaminant), n—a piece of mat-
particulate contamination.
terinasolidstatewithobservablelength,width,andthickness.
1.3 ThevaluesstatedinSIunitsaretoberegardedstandard.
3.1.4.1 Discussion—The size of a particle is usually defined
No other units of measurement are included in this standard.
by its greatest dimension and is specified in micrometres.
1.4 This standard does not purport to address all of the
3.1.5 molecular contaminant (non-particulate
safety concerns, if any, associated with its use. It is the
contamination), n—the molecular contaminant may be in a
responsibility of the user of this standard to establish appro-
gaseous, liquid, or solid state.
priate safety and health practices and determine the applica-
3.1.5.1 Discussion—A molecular contaminant may be uni-
bility of regulatory limitations prior to use.
formly or nonuniformly distributed, or be in the form of
droplets. Molecular contaminants account for most of the
2. Referenced Documents
NVR.
2
2.1 ASTM Standards:
3.1.6 degas, v—theprocessofremovinggasesfromaliquid.
D1193Specification for Reagent Water
E1235Test Method for Gravimetric Determination of Non-
4. Summary of Practice
volatile Residue (NVR) in Environmentally Controlled
4.1 Amaterial, glove, hand wipe, and so forth, is placed in
Areas for Spacecraft
a container containing the test fluid. This container is then
F324Test Method for Nonvolatile Residue of Volatile
placed in an ultrasonic cleaning bath and treated for a given
Cleaning Solvents Using the Solvent Purity Meter (With-
3 period of time at the recommended temperature for the test
drawn 1987)
fluid. This results in either a solution if the contaminant is
F331Test Method for Nonvolatile Residue of Solvent Ex-
solubleinthetestfluidoranemulsionifthecontaminantisnot
tract fromAerospace Components (Using Flash Evapora-
solubleinthetestfluid.Thetestfluidmaythenbeanalyzedfor
tor)
nonvolatile residue that was extracted from the test specimen.
4.1.1 In the case of aqueous-based agents, the material may
1
This practice is under the jurisdiction of ASTM Committee G04 on Compat-
be treated in accordance with Specification D1193 Type II
ibility and Sensitivity of Materials in Oxygen Enriched Atmospheres and is the
direct responsibility of Subcommittee G04.02 on Recommended Practices.
water or Type II water containing an extracting agent.
Current edition approved May 1, 2016. Published June 2016. Originally
4.1.1.1 When Type II water is used, the water and material
approved in 1995. Last previous edition approved in 2009 as G136–03(2009).
maybeanalyzedwithoutfurthertreatment.Typicalmethodsof
DOI: 10.1520/G0136-03R16.
2
analysis may include weighing the material before and after
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
treatment or more sophisticated analytical procedures such as
Standardsvolume information, refer to the standard’s Document Summary page on
total carbon (TC) or high-pressure liquid chromatography.
the ASTM website.
3 4.1.1.2 When cleaning agents are used, the materials are
The last approved version of this historical standard is referenced on
www.astm.org. rinsed with Type II water after the removal from the cleaning
Copyright © ASTM International, 100 Barr Harbor
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: G136 − 03 (Reapproved 2009) G136 − 03 (Reapproved 2016)
Standard Practice for
Determination of Soluble Residual Contaminants in
1
Materials by Ultrasonic Extraction
This standard is issued under the fixed designation G136; 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
1.1 This practice may be used to extract nonvolatile and semivolatile residues from materials such as new and used gloves, new
and used wipes, component soft goods, and so forth. When used with proposed cleaning materials (wipes, gloves, and so forth),
this practice may be used to determine the potential of the proposed solvent or other fluids to extract contaminants (plasticizers,
residual detergents, brighteners, and so forth.) and deposit them on the surface being cleaned.
1.2 This practice is not suitable for the evaluation of particulate contamination.
1.3 The values stated in SI units are to be regarded standard. No other units of measurement are included in this standard.
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.
2. Referenced Documents
2
2.1 ASTM Standards:
D1193 Specification for Reagent Water
E1235 Test Method for Gravimetric Determination of Nonvolatile Residue (NVR) in Environmentally Controlled Areas for
Spacecraft
3
F324 Test Method for Nonvolatile Residue of Volatile Cleaning Solvents Using the Solvent Purity Meter (Withdrawn 1987)
F331 Test Method for Nonvolatile Residue of Solvent Extract from Aerospace Components (Using Flash Evaporator)
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 contaminant (contamination), n—unwanted molecular and particulate matter that could affect or degrade the performance
of the components upon which they reside.
3.1.2 contaminate, v—a process of contaminating.
3.1.3 nonvolatile residue (NVR), n—residual molecular and particulate matter remaining following the filtration and controlled
evaporation of liquid containing contaminants.
3.1.4 particle (particulate contaminant), n—a piece of matter in a solid state with observable length, width, and thickness.
1
This practice is under the jurisdiction of ASTM Committee G04 on Compatibility and Sensitivity of Materials in Oxygen Enriched Atmospheres and is the direct
responsibility of Subcommittee G04.02 on Recommended Practices.
Current edition approved April 1, 2009May 1, 2016. Published September 2009June 2016. Originally approved in 1995. Last previous edition approved in 20032009 as
G136 – 03.G136 – 03(2009). DOI: 10.1520/G0136-03R09.10.1520/G0136-03R16.
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
Standardsvolume information, refer to the standard’s Document Summary page on the ASTM website.
3
The last approved version of this historical standard is referenced on www.astm.org.
3.1.4.1 Discussion—
The size of a particle is usually defined by its greatest dimension and is specified in micrometres.
3.1.5 molecular contaminant (non-particulate contamination), n—the molecular contaminant may be in a gaseous, liquid, or
solid state.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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G136 − 03 (2016)
3.1.5.1 Discussion—
A molecular contaminant may be uniformly or nonuniformly distributed, or be in the form of droplets. Molecular contaminants
account for most of the NVR.
3.1.6 degas, v—the process of removing gases from a liquid.
4. Summary of Practice
4.1 A material, glove, hand wipe, and so forth, is placed in a container containing the test fluid. This container is then placed
in an ultrasonic cleaning bath and treated for a given period of time at the recommended temperature for the test fluid. This results
in either a solution if the contaminant is soluble in the test fluid or an emulsion if the contaminant is not soluble in the test fluid.
The test fluid may then be analyzed for nonvolatile residue that was extracted from the test specimen.
4.1.1 In the case of aqueou
...
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