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ASTM D8108-21e1

(Test Method)

Standard Test Method for Determination of Particulate Matter Mass from Light Duty Mobile Sources (Gravimetric Method)

Standard Test Method for Determination of Particulate Matter Mass from Light Duty Mobile Sources (Gravimetric Method)

SIGNIFICANCE AND USE
5.1 This test method is used to demonstrate compliance with state, EPA as well as relevant international regulations for PM emissions from light-duty vehicles.  
5.1.1 The EPA Tier 3 and CARB LEV III regulations specify FTP and SFTP PM emission standards for light-duty vehicles.
SCOPE
1.1 This test method covers a procedure for the gravimetric determination of particulate matter (PM) collected from diluted light duty vehicle exhaust. It is applicable to mass rates from 0.32 to 32 mg/km (0.2 to 20 mg/mile).  
1.2 Diluted exhaust is passed through pre-weighed filter media which is re-weighed after sampling. The difference in weight is used to determine particulate mass, which is then used with other data to calculate the distance specific emissions.  
1.3 The particulate materials that are measured using this test method are generated by a vehicle following the PM standard applicable portions of the United States Environmental Protection Agency (EPA) and California Air Resources Board (CARB) driving schedules and test procedures for determining the emissions of light duty vehicles. For other jurisdictions, consult regional regulations for applicability of these test procedures. These test procedures are referenced in Annex A3 of this document.  
1.4 The primary intent of this test method is to summarize the PM measurement test procedures as defined by the EPA and CARB (40 CFR Parts §1066, §1065, §86.101, and CARB test procedures for hybrid vehicle testing).  
Note 1: Some requirements are generalized from core references for simplicity and to provide guidance for users applying the principals in this standard to regions not governed by EPA and CARB regulation. For specific details, reference the regulated procedures.  
1.5 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard.  
1.6 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.  
1.7 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
30-Apr-2021
ICS
13.040.50 - Transport exhaust emissions
Technical Committee
D22 - Air Quality
Drafting Committee
D22.03 - Ambient Atmospheres and Source Emissions
Current Stage
Ref Project

Relations

Refers
ASTM D1356-20a - Standard Terminology Relating to Sampling and Analysis of Atmospheres
Effective Date
01-Sep-2020
Refers
ASTM D1356-20 - Standard Terminology Relating to Sampling and Analysis of Atmospheres
Effective Date
15-Mar-2020

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ASTM D8108-21e1 - Standard Test Method for Determination of Particulate Matter Mass from Light Duty Mobile Sources (Gravimetric Method)ASTM D8108-21e1 - Standard Test Method for Determination of Particulate Matter Mass from Light Duty Mobile Sources (Gravimetric Method)
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ASTM D8108-21e1 - Standard Test Method for Determination of Particulate Matter Mass from Light Duty Mobile Sources (Gravimetric Method)
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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.
´1
Designation: D8108 − 21
Standard Test Method for
Determination of Particulate Matter Mass from Light Duty
1
Mobile Sources (Gravimetric Method)
This standard is issued under the fixed designation D8108; 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
ε NOTE—Research report information was updated editorially in July 2022.
1. Scope priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use.
1.1 This test method covers a procedure for the gravimetric
1.7 This international standard was developed in accor-
determinationofparticulatematter(PM)collectedfromdiluted
dance with internationally recognized principles on standard-
light duty vehicle exhaust. It is applicable to mass rates from
ization established in the Decision on Principles for the
0.32 to 32 mg/km (0.2 to 20 mg/mile).
Development of International Standards, Guides and Recom-
1.2 Diluted exhaust is passed through pre-weighed filter
mendations issued by the World Trade Organization Technical
media which is re-weighed after sampling. The difference in
Barriers to Trade (TBT) Committee.
weight is used to determine particulate mass, which is then
used with other data to calculate the distance specific emis- 2. Referenced Documents
sions. 2
2.1 ASTM Standards:
1.3 The particulate materials that are measured using this D1356 Terminology Relating to Sampling and Analysis of
test method are generated by a vehicle following the PM Atmospheres
standard applicable portions of the United States Environmen- E177 Practice for Use of the Terms Precision and Bias in
tal Protection Agency (EPA) and California Air Resources ASTM Test Methods
Board (CARB) driving schedules and test procedures for E691 Practice for Conducting an Interlaboratory Study to
determining the emissions of light duty vehicles. For other Determine the Precision of a Test Method
3
jurisdictions, consult regional regulations for applicability of 2.2 ISO Standards:
these test procedures. These test procedures are referenced in
ISO 14644-1 Cleanrooms and associated controlled environ-
Annex A3 of this document.
ments — Part 1: Classification of air cleanliness by
particle concentration
1.4 The primary intent of this test method is to summarize
2.3 Government Regulations:
thePMmeasurementtestproceduresasdefinedbytheEPAand
CARB California Exhaust Emission Standards and Test
CARB (40 CFR Parts §1066, §1065, §86.101, and CARB test
Procedures for 2018 and Subsequent Model Zero-
procedures for hybrid vehicle testing).
Emission Vehicles and Hybrid Electric Vehicles, in the
NOTE 1—Some requirements are generalized from core references for
Passenger Car, Light-Duty Truck and Medium-Duty Ve-
simplicity and to provide guidance for users applying the principals in this
4
hicle Classes – Sections F (HEVs) and G (PHEVs)
standard to regions not governed by EPA and CARB regulation. For
5
EPA 40 CFR Part 86, Appendix I
specific details, reference the regulated procedures.
5
EPA 40 CFR Part 86.101
1.5 The values stated in SI units are to be regarded as
5
EPA 40 CFR Part 1065
standard. The values given in parentheses after SI units are
provided for information only and are not considered standard.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
1.6 This standard does not purport to address all of the
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
safety concerns, if any, associated with its use. It is the
Standards volume information, refer to the standard’s Document Summary page on
responsibility of the user of this standard to establish appro-
the ASTM website.
3
Available from International Organization for Standardization (ISO), ISO
Central Secretariat, BIBC II, Chemin de Blandonnet 8, CP 401, 1214 Vernier,
1
This test method is under the jurisdiction of ASTM Committee D22 on Air Geneva, Switzerland, http://www.iso.org.
4
Quality and is the direct responsibility of Subcommittee D22.03 on Ambient Available from California Air Resources Board (CARB), 1001 I Street,
Atmospheres and Source Emissions. Sacramento, CA 95814, https://ww2.arb.ca.gov.
5
Current edition approved May 1, 2021. Published May 2021. Originally AvailablefromUnitedStatesEnvironmentalProtectionAgency(EPA),William
approved in 2020. Last previous edition approved in 2020 as D8101 – 20. DOI: Jefferson Clinton Bldg., 1200 Pennsylvania Ave., NW, Washington, DC 20460,
10.152
...

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4.1 The primary use of these test methods is testing to determine the specified mechanical properties of steel, stainless steel, and related alloy products for the evaluation of conformance of such products to a material specification under the jurisdiction of ASTM Committee A01 and its subcommittees as designated by a purchaser in a purchase order or contract.  
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4.2.1 As with any mechanical testing, deviations from either specification limits or expected as-manufactured properties can occur for valid reasons besides deficiency of the original as-fabricated product. These reasons include, but are not limited to: subsequent service degradation from environmental exposure (for example, temperature, corrosion); static or cyclic service stress effects, mechanically-induced damage, material inhomogeneity, anisotropic structure, natural aging of select alloys, further processing not included in the specification, sampling limitations, and measuring equipment calibration uncertainty. There is statistical variation in all aspects of mechanical testin...
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1.1 These test methods2 cover procedures and definitions for the mechanical testing of steels, stainless steels, and related alloys. The various mechanical tests herein described are used to determine properties required in the product specifications. Variations in testing methods are to be avoided, and standard methods of testing are to be followed to obtain reproducible and comparable results. In those cases in which the testing requirements for certain products are unique or at variance with these general procedures, the product specification testing requirements shall control.  
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1.2 In the case of conflict between a requirement of a product specification and a requirement of this specification, the product specification shall prevail. In the case of conflict between a requirement of the product specification or a requirement of this specification and a more stringent requirement of the purchase order, the purchase order shall prevail. The purchase order requirements shall not take precedence if they, in any way, violate the requirements of the product specification or this specification; for example, by waiving a test requirement or by making a test requirement less stringent.  
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SCOPE
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Test Method for Shrinkage Temperature of Wet Blue and Wet White

SIGNIFICANCE AND USE
5.1 This test method is designed to determine the temperature at which the Wet Blue or Wet White specimen experiences shrinkage. In this test method, shrinkage occurs as a result of hydrothermal denaturation of the collagen protein molecules which make up the fiber structure of the Wet Blue or Wet White. The shrinkage temperature of Wet Blue or Wet White is influenced by many different factors, most of which appear to affect the number and nature of crosslinking interactions between adjacent polypeptide chains of the collagen protein molecules. The value of the shrinkage temperature of Wet Blue or Wet White is commonly used as an indicator of the type of tannage or the degree of tannage, or both, of that particular Wet Blue or Wet White (especially for the more hydrothermally stable tannages such as chrome tannage).
SCOPE
1.1 This test method covers the determination of the shrinkage temperature of all types of Wet Blue and Wet White. The heating medium is water when the shrinkage temperature is at or below 98 °C. The heating medium is a glycerine-water solution when the shrinkage temperature is above 98 °C.  
1.2 The values stated in SI units are to be regarded as the standard. The values 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.  
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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