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ASTM F2873-13

(Practice)

Standard Practice for the Installation of Self-Leveling Underlayment and the Preparation of Surface to Receive Resilient Flooring

Standard Practice for the Installation of Self-Leveling Underlayment and the Preparation of Surface to Receive Resilient Flooring

SIGNIFICANCE AND USE
4.1 This practice provides minimum recommendations for the installation of self-leveling underlayments suitable to receive resilient floor coverings. This practice establishes the proper preparation of the subfloor, and installation methods and quality control requirements for self-leveling underlayments. This practice addresses the preparation of the self-leveling underlayment’s surface prior to the installation of floor coverings.  
4.2 Actual requirements for self-leveling underlayments are generally included as part of project plans or specifications and may vary from the recommendations set forth in this practice. Provisions in the project documents at variance with this practice shall take precedence.
SCOPE
1.1 This practice covers the installation of self-leveling underlayments, which may include a priming system, over solid wood, wood structural panel subfloors, over concrete, and over certain solidly bonded existing flooring systems such as epoxy floors, ceramic and natural stone tiles, terrazzo, as well as properly prepared non water-soluble adhesive residues as recommended by the underlayment manufacturer. This practice also covers the preparation of the self-leveling underlayment’s surface prior to the installation of resilient flooring.  
1.2 This practice points out the factors that are required to be controlled while installing a self-leveling underlayment to be used as a substrate for resilient flooring.  
1.3 This practice does not cover the structural adequacy of the subfloor. The structural integrity of assemblies is governed by local building codes and may be superseded by the resilient flooring manufacturer's requirements.  
1.4 This practice does not supersede the self-leveling underlayment manufacturer’s, adhesive manufacturer’s or resilient flooring manufacturer’s written instructions. Consult the individual manufacturer for specific recommendations.  
1.5 Many self-leveling underlayments are not suitable for use on concrete slabs on grade or below due to potential moisture problems arising from moisture intrusion. This may occur unless an adequate vapor retarder or vapor barrier is present directly beneath the concrete slab or an effective moisture remediation system has been installed beneath the surface of the self-leveling underlayment. Consult the manufacturer of the self-leveling underlayment and flooring system for specific recommendations.  
1.6 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.7 This practice does purport to address the necessity for or the safe or correct removal of asbestos containing materials. Breathing of asbestos dust is hazardous. Asbestos and asbestos products present demonstrated health risks for users and for those with whom they come into contact. In addition to other precautions, when working with asbestos-cement products, minimize the dust that results. For information on the safe use of chrysoltile asbestos, refer to “Safe Use of Chrysotile Asbestos: A Manual on Preventive and Control Measures.”2  
1.8 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-May-2013
ICS
83.080.10 - Thermosetting materials
Technical Committee
F06 - Resilient Floor Coverings
Drafting Committee
F06.40 - Practices
Current Stage
Ref Project

Relations

Replaced By
ASTM F2873-18 - Standard Practice for the Installation of Self-Leveling Underlayment and the Preparation of Surface to Receive Resilient Flooring
Effective Date
15-Jul-2018
Referred By
ASTM F3311-19 - Standard Practice for Mat Bond Evaluation of Performance and Compatibility for Resilient Flooring System Components Prior to Installation
Effective Date
01-Jun-2013

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ASTM F2873-13 - Standard Practice for the Installation of Self-Leveling Underlayment and the Preparation of Surface to Receive Resilient FlooringASTM F2873-13 - Standard Practice for the Installation of Self-Leveling Underlayment and the Preparation of Surface to Receive Resilient Flooring
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ASTM F2873-13 - Standard Practice for the Installation of Self-Leveling Underlayment and the Preparation of Surface to Receive Resilient Flooring
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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: F2873 − 13
Standard Practice for
the Installation of Self-Leveling Underlayment and the
1
Preparation of Surface to Receive Resilient Flooring
This standard is issued under the fixed designation F2873; 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 1.7 This practice does purport to address the necessity for or
the safe or correct removal of asbestos containing materials.
1.1 This practice covers the installation of self-leveling
Breathing of asbestos dust is hazardous.Asbestos and asbestos
underlayments, which may include a priming system, over
products present demonstrated health risks for users and for
solidwood,woodstructuralpanelsubfloors,overconcrete,and
those with whom they come into contact. In addition to other
over certain solidly bonded existing flooring systems such as
precautions, when working with asbestos-cement products,
epoxy floors, ceramic and natural stone tiles, terrazzo, as well
minimize the dust that results. For information on the safe use
as properly prepared non water-soluble adhesive residues as
of chrysoltile asbestos, refer to “Safe Use of Chrysotile
recommendedbytheunderlaymentmanufacturer.Thispractice
2
Asbestos: A Manual on Preventive and Control Measures.”
also covers the preparation of the self-leveling underlayment’s
1.8 This standard does not purport to address all of the
surface prior to the installation of resilient flooring.
safety concerns, if any, associated with its use. It is the
1.2 This practice points out the factors that are required to
responsibility of the user of this standard to establish appro-
be controlled while installing a self-leveling underlayment to
priate safety and health practices and determine the applica-
be used as a substrate for resilient flooring.
bility of regulatory limitations prior to use.
1.3 This practice does not cover the structural adequacy of
2. Referenced Documents
the subfloor. The structural integrity of assemblies is governed
3
by local building codes and may be superseded by the resilient
2.1 ASTM Standards:
flooring manufacturer’s requirements.
C219 Terminology Relating to Hydraulic Cement
C1583 Test Method for Tensile Strength of Concrete Sur-
1.4 This practice does not supersede the self-leveling un-
faces and the Bond Strength or Tensile Strength of
derlayment manufacturer’s, adhesive manufacturer’s or resil-
Concrete Repair and Overlay Materials by Direct Tension
ient flooring manufacturer’s written instructions. Consult the
(Pull-off Method)
individual manufacturer for specific recommendations.
C1708 Test Methods for Self-leveling Mortars Containing
1.5 Many self-leveling underlayments are not suitable for
Hydraulic Cements
use on concrete slabs on grade or below due to potential
F141 Terminology Relating to Resilient Floor Coverings
moisture problems arising from moisture intrusion. This may
F710 Practice for Preparing Concrete Floors to Receive
occur unless an adequate vapor retarder or vapor barrier is
Resilient Flooring
present directly beneath the concrete slab or an effective
F1869 Test Method for Measuring Moisture Vapor Emission
moisture remediation system has been installed beneath the
Rate of Concrete Subfloor Using Anhydrous Calcium
surface of the self-leveling underlayment. Consult the manu-
Chloride
facturer of the self-leveling underlayment and flooring system
F2170 Test Method for Determining Relative Humidity in
for specific recommendations.
Concrete Floor Slabs Using in situ Probes
F2420 Test Method for Determining Relative Humidity on
1.6 The values stated in inch-pound units are to be regarded
as standard. The values given in parentheses are mathematical the Surface of Concrete Floor Slabs Using Relative
Humidity Probe Measurement and Insulated Hood
conversions to SI units that are provided for information only
and are not considered standard. F1482 Practice for Installation and Preparation of Panel
Type Underlayments to Receive Resilient Flooring
1 2
This practice is under the jurisdiction of ASTM Committee F06 on Resilient Available from http://www.chrysotile.com
3
Floor Coverings and is the direct responsibility of Subcommittee F06.40 on For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Practices. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Current edition approved June 1, 2013. Published July 2013. DOI: 10.1520/ Standards volume information, refer to the standard’s Document Summary page on
F2873-13 the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United Sta
...

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Standard Practice for the Installation of Self-Leveling Underlayment and the Preparation of Surface to Receive Resilient Flooring

SIGNIFICANCE AND USE
4.1 This practice provides minimum recommendations for the installation of self-leveling underlayments suitable to receive resilient floor coverings. This practice establishes the proper preparation of the subfloor, and installation methods and quality control requirements for self-leveling underlayments. This practice addresses any necessary preparation of the self-leveling underlayment’s surface prior to the installation of floor coverings.  
4.2 Actual requirements for self-leveling underlayments are generally included as part of project plans or specifications and may vary from the recommendations set forth in this practice. Provisions in the project documents at variance with this practice shall take precedence.
SCOPE
1.1 This practice covers the installation of self-leveling underlayments, which may include a priming system, over solid wood, wood structural panel subfloors, over concrete, and over certain solidly bonded existing flooring systems such as epoxy floors, ceramic and natural stone tiles, terrazzo, metal subfloors and foils such as steel, copper and lead, solidly bonded patching and other leveling materials as well as properly prepared non water-soluble adhesive residues as recommended by the underlayment manufacturer. This practice also covers the preparation of the self-leveling underlayment’s surface prior to the installation of resilient flooring.  
1.2 This practice points out the factors that are required to be controlled while installing a self-leveling underlayment to be used as a substrate for resilient flooring.  
1.3 This practice does not cover the structural adequacy of the subfloor. The structural integrity of assemblies is governed by local building codes and may be superseded by the resilient flooring manufacturer's and the self-leveling underlayment manufacturer’s requirements.  
1.4 This practice does not supersede the self-leveling underlayment manufacturer’s, adhesive manufacturer’s or resilient flooring manufacturer’s written instructions. Consult the individual manufacturer for specific recommendations.  
1.5 Some self-leveling underlayments are not suitable for use on concrete slabs on or below grade due to potential moisture problems arising from moisture intrusion. However, most of the self-leveling underlayments may be suitable for use on and below grade if an adequate and effective vapor retarder or vapor barrier is present directly beneath the concrete slab or an effective moisture remediation system has been installed beneath the surface of the self-leveling underlayment. Consult the manufacturer of the self-leveling underlayment and flooring system for specific recommendations.  
1.6 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.7 This practice does purport to address the necessity for or the safe or correct removal of asbestos containing materials. Breathing of asbestos dust is hazardous. Asbestos and asbestos products present demonstrated health risks for users and for those with whom they come into contact. In addition to other precautions, when working with asbestos-cement products, minimize the dust that results. For information on the safe use of chrysoltile asbestos, refer to “Safe Use of Chrysotile Asbestos: A Manual on Preventive and Control Measures.”2  
1.8 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.  
1.9 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standar...

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ASTM D8065/D8065M-16(2023)(Specification)
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SIGNIFICANCE AND USE
4.1 The purpose of this classification system is to provide a method of adequately identifying plastic films using a system that applies universally for plastic films. It further provides a means for specifying these films by the use of a simple line call-out designation.  
4.2 This classification system was developed to permit the addition of additional film products and property values.  
4.3 It is intended that the classification of plastic sheeting, >0.25 mm [0.010 in.] thickness, multi-layer structures, blends, and other variants will be addressed in related standards.
SCOPE
1.1 This standard provides a classification system for tabulating the properties of unfilled, single-layer plastic films.
Note 1: The classification system serves many of the needs of industries using plastic films. The standard is subject to revision as the need requires; therefore, the latest revision should always be used.
Note 2: Film is defined in Terminology D883 as an optional term for sheeting having a nominal thickness no greater than 0.25 mm [0.010 in.].  
1.2 The classification system and subsequent line call-out (specification) is intended to be a means of identifying plastic films used for applications including industrial, packaging, construction, and agriculture. It is not intended for the selection of materials to be used in films. This selection should be made by those having expertise in the plastics field after careful consideration of the end-use requirements, the environment to which the films will be exposed, the fabrication process to be employed, the inherent properties of the material not covered in this document, and the economic factors.  
1.3 This classification system is based on the premise that plastic films can be arranged into broad generic families based on materials with similar composition using basic film properties. A system is thus established which, together with values describing additional requirements, permits as complete a description as desired of the selected film.  
1.4 In all cases where the provisions of this classification system would conflict with the referenced ASTM specification for a particular film product, the latter shall take precedence.
Note 3: It is strongly recommended that this classification system be used for all new applications and specifications and that the specification of films using existing standards be expeditiously withdrawn or converted to this classification system.  
1.5 This classification system applies to commercial products and, as such, there is no control over the manufacturing parameters employed in producing the film. It shall be the responsibility of those developing the specification documents utilizing this classification system to identify the critical parameters and values to be used for the cell classifications and suffix requirements.  
1.6 Units—The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.  
1.7 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.
Note 4: There is no known ISO equivalent to this standard.  
1.8 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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ASTM D6902-04(2023)(Test Method)
Standard Test Method for Laboratory Measurement of Formaldehyde Evolved During the Curing of Melamine-Formaldehyde-Based Coatings

SIGNIFICANCE AND USE
5.1 This test method measures the amount of formaldehyde that is evolved from a coating containing melamine-formaldehyde resin(s) during cure at elevated temperature. Cure formaldehyde results from a side-reaction during cross-linking of functionalized polymers with melamine-formaldehyde resins. Cure formaldehyde is evolved in the final bake or cure oven, when the coating temperature is high enough to initiate cross-linking. Formaldehyde can be released from a coating during application, solvent flash-off and cure. Free formaldehyde is primarily evolved during coating application and solvent flash-off. Test Method D1979 measures “free formaldehyde” in amino resins and Test Method D6191 measures formaldehyde evolved from coatings at ambient temperature. This method measures only the formaldehyde released during heat cure, which is primarily “cure formaldehyde.”  
5.2 This test method is not intended to duplicate the evolved formaldehyde from an industrial process, but serves as a reproducible comparative laboratory evaluation.  
5.3 This test method has not been evaluated with catalyzed coating systems that cure at or below 40 °C, such as those used by the wood-finishing industry, and would likely require special adaptation for this application.
SCOPE
1.1 This test method is for the determination of formaldehyde evolved from melamine-formaldehyde-based coatings during the cure step. The results may be used to determine the “cure formaldehyde” evolved from a sample under controlled laboratory conditions.  
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.  
1.3 This test method is capable of measuring from 500 μg/g to 22 000 μg formaldehyde/g dry coating under the test conditions specified (3 000 ml/min total flow, 50 ml/min DNPH tube flow). The ratio of total flow to DNPH tube flow could be adjusted to extend the range of the method.  
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.

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ASTM D4895-18(2023)(Specification)
Standard Specification for Polytetrafluoroethylene (PTFE) Resin Produced From Dispersion

ABSTRACT
This specification covers dry-powder resins of polytetrafluoroethylene (PTFE) resin produced from dispersion. PTFE mixtures with additives are not covered in this specification. This specification covers type I and type II PTFE. The resins shall be tested for bulk density, particle size, water content, melting peak temperature, tensile strength, elongation at break, standard specific gravity, extrusion pressure, thermal instability index, and stretching void index. Specimen preparation, testing, inspection, and packaging shall be in accordance to the procedures indicated in this specification.
SCOPE
1.1 This specification2 covers polytetrafluoroethylene (PTFE) prepared by coagulation of a dispersion. These PTFE resins are homopolymers of tetrafluoroethylene or modified homopolymers containing not more than 1 % by weight of other fluoromonomers. The materials covered herein do not include mixtures of PTFE with additives such as colors, fillers, or plasticizers; nor do they include reprocessed or reground resin or any fabricated articles because the properties of such materials have been irreversibly changed when they were fibrillated or sintered.  
1.2 The values stated in SI units as detailed in IEEE/ASTM SI-10 are to be regarded as standard. The values given in parentheses are for information only.  
1.3 The following safety hazards caveat pertains only to the Specimen Preparation Section, Section 9, and the Test Methods Section, Section 10, of this specification: 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. See Warning note in 9.1.1 for a specific hazards statement.
Note 1: Information in this specification is technically equivalent to related information in ISO 20568-1 and ISO 20568-2.  
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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ASTM D7750-23(Test Method)
Standard Test Method for Cure Behavior of Thermosetting Resins by Dynamic Mechanical Procedures using an Encapsulated Specimen Rheometer

SIGNIFICANCE AND USE
5.1 This method provides a simple means of characterizing the cure behavior of a thermosetting resin specimen that is a representation of a composite part. The diameter of the specimen is approximately 38 mm and the thickness ranges from 2.6 mm to 3.2 mm. This corresponds to a sample volume of approximately 3 cm3 to 4 cm3. The data may be used for quality control, research and development, and verifying the cure within processing equipment including autoclaves.  
5.2 Dynamic mechanical testing provides a sensitive method for determining cure characteristics by measuring the elastic and loss moduli as a function of temperature or time, or both. Plots of cure behavior and tan delta of a material provide graphical representation indicative of cure behavior under a specified time-temperature profile. The presence of fibers within the resin may change the dynamic properties measured within a material. However, it is still possible to compare different resins with the same fiber structure and obtain the relative difference due to the resin cure properties.  
5.3 This method can be used to assess the following:  
5.3.1 Cure behavior, as well as changes as a function of temperature or time, or both,  
5.3.2 Processing behavior, as well as changes as a function of temperature or time, or both,  
5.3.3 The effects of processing treatments,  
5.3.4 Relative resin behavioral properties, including cure behavior, damping and impact resistance,  
5.3.5 The effects of reinforcement on cure; the reinforcement can be a fiber or a filler,  
5.3.6 The effects of materials used to bond the resin and reinforcement,  
5.3.7 The effect of formulation additives that might affect processability or performance.  
5.4 This provides a method to assess the cure properties of a thermosetting resin containing woven fiber or other reinforcing materials.  
5.5 This method is valid for a wide range of oscillation frequencies typically from 0.002 Hz to 50 Hz.
Note 1: It is recommended tha...
SCOPE
1.1 This method covers the use of dynamic mechanical instrumentation for determination and reporting of the thermal advancement of cure behavior of thermosetting resin on an inert filler or fiber in a laboratory. It may also be used for determining the cure properties of resins without fillers or fibers. These encapsulated specimens are deformed in torsional shear using dynamic mechanical methods.  
1.2 This method is intended to provide means for determining the cure behavior of thermosetting resins on fibers over a range of temperatures from room temperature to 250 °C by forced-constant amplitude techniques (in accordance with Practice D4065). Plots of complex modulus, complex viscosity, and damping ratio or tan delta as a function of time or temperature, or both, quantify the thermal advancement or cure characteristics of a resin or a resin on filler or fiber.  
1.3 Test data obtained by this method is relevant and appropriate for optimizing cure cycles.  
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.4.1 Exception—The Fahrenheit temperature measurement in 10.1 is provided for information only and is not considered standard.  
1.5 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.  
1.6 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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ASTM D4661-23(Test Method)
Standard Test Methods for Polyurethane Raw Materials: Determination of Total Chlorine in Isocyanates

SIGNIFICANCE AND USE
5.1 These test methods are suitable for use for research or for quality control to determine the total chlorine content of aromatic isocyanates. In some instances total chlorine content may correlate with performance in polyurethane systems.
SCOPE
1.1 These test methods determine the total chlorine content of aromatic isocyanates used as polyurethane raw materials. The difference between the total chlorine content and the hydrolyzable chlorine content (see Test Method D4663) is a measure of the amount of chlorobenzene, o-dichlorobenzene, and other ring-substituted chlorinated products that are present. Both procedures are applicable to a variety of organic compounds but the amount of sample used is varied. (See Note 1.)  
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.  
1.3 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.
Note 1: This standard is identical to ISO 26603.  
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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ASTM D5629-23(Test Method)
Standard Test Method for Polyurethane Raw Materials: Determination of Acidity in Low-Acidity Aromatic Isocyanates and Polyurethane Prepolymers

SIGNIFICANCE AND USE
5.1 This test method is suitable for research or for quality control to characterize aromatic isocyanates and low-acidity prepolymers. Acidity correlates with performance in some polyurethane systems.
SCOPE
1.1 This test method measures the acidity, expressed as ppm of hydrochloric acid (HCl), in aromatic isocyanate or polyurethane prepolymer samples of below 100 ppm acidity. The test method is applicable to products derived from toluene diisocyanate and methylene di(phenylisocyanate) (see Note 1). Refer to Test Method D6099 for determination of acidity in moderate- to high-acidity aromatic isocyanates.  
1.2 The values stated in SI units are to be regarded as the standard.  
1.3 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.
Note 1: This standard is equivalent to ISO 14898, Method B.  
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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ASTM D5991-23(Practice)
Standard Practice for Separation and Identification of Poly(Vinyl Chloride) (PVC) Contamination in Poly(Ethylene Terephthalate) (PET) Flake

SIGNIFICANCE AND USE
5.1 Presence of even low concentrations of PVC in recycled PET flakes results in equipment corrosion problems during processing. The PVC contamination level shall dictate the market for use of the recycled polymer in secondary products. Procedures presented in this practice are used to identify the PVC contamination in recycled PET flakes.
Note 4: These procedures may also be used to estimate the concentration of PVC contamination.
SCOPE
1.1 This practice covers four procedures for separation and qualitative identification of poly(vinyl chloride) (PVC) contamination in poly(ethylene terephthalate) (PET) flakes.
Note 1: Although not presented as a quantitative method, procedures presented in this practice may be used to provide quantitative results at the discretion of the user. The user assumes the responsibility to verify the reproducibility of quantitative results. Data from an independent source suggest a PVC detection level of 200 ppm (w/w) based on an original sample weight of 454 g.  
1.2 Procedure A is based on different fluorescence of PVC and PET when these polymers are exposed to ultraviolet (UV) light.  
1.3 Procedure B is an oven test based upon the charring of PVC when it is heated in air at 235°C.  
1.4 Procedures C and D are dye tests based on differential staining of PVC and PET.  
Note 2: Other polymers (for example, PETG) also absorb the stain or brightener. Such interferences will result in false positive identification of PVC as the contaminant.  
1.5 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. For specific hazards see Section 8.  
Note 3: There is no known ISO equivalent to this standard.  
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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ASTM D3643-15(2022)(Test Method)
Standard Test Method for Acid Number of Certain Alkali-Soluble Resins

SIGNIFICANCE AND USE
4.1 This test method is not appropriate for alkali-soluble resins whose acid functionality is due to incorporated anhydrides. Variations in manufacture, storage, and possible contamination of anhydride functional resins may cause partial hydrolysis, or esterification, which will invalidate data from this test method. Anhydride functional resins should be characterized by Test Method D3644.  
4.2 This test method is used to measure a property of acid functionalized resins. Acid number determines the utility of resins as well as being a significant quality control measure.
SCOPE
1.1 This test method covers the measurement of the free acidity present in certain alkali-soluble resins.  
1.2 This test method is not suitable for styrene-maleic anhydride resins.  
1.3 The resin manufacturer should specify whether or not this test method may be used for his product(s).  
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.5 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.  
1.6 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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ASTM D3644-15(2022)(Test Method)
Standard Test Method for Acid Number of Styrene-Maleic Anhydride Resins

SIGNIFICANCE AND USE
4.1 This test method is used to determine the property of styrene-maleic anhydride resins functionality. Acid functionality determines the utility of resin as well as being a significant quality control test.  
4.2 Because some of the anhydride functionality has been hydrolyzed in the manufacturing process, direct titration with base will produce erroneous data on the total acid content of the fully hydrolyzed resin in use. This test method charges excess alkali to hydrolize the anhydride functionality and neutralize the resulting acid. The remaining unreacted alkali is then back titrated with a standardized acid solution and the acid content is determined by difference.
SCOPE
1.1 This test method covers the measurement of the free acidity present in styrene-maleic anhydride resins.  
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.3 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.  
1.4 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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