ASTM D4122-17

Standard Practice for Carbon Black—Evaluation of an Industry Reference Black

SIGNIFICANCE AND USE
3.1 These guidelines are intended to ensure that IRBs are evaluated by a standard procedure.  
3.2 These guidelines are to be used to establish the average physicochemical and physical rubber properties of a lot of carbon black to be used as an IRB.
SCOPE
1.1 This practice covers guidelines for the production and testing for uniformity of a lot of carbon black to be used as an Industry Reference Black (IRB).  
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 and health practices and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 31-Dec-2016
• ICS: 83.040.20 - Rubber compounding ingredients
• Technical Committee: D24 - Carbon Black
• Drafting Committee: D24.61 - Carbon Black Sampling and Statistical Analysis

Relations

• Replaces: ASTM D4122-10a(2015) - Standard Practice for Carbon Black—Evaluation of an Industry Reference Black
• Effective Date: 01-Jan-2017
• Referred By: ASTM D8466-22 - Standard Guide for Recovered Carbon Black—Carbon Black Test Methods for Testing rCB
• Effective Date: 01-Jan-2017

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D4122 − 17
Standard Practice for
1
Carbon Black—Evaluation of an Industry Reference Black
This standard is issued under the fixed designation D4122; 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 D3191Test Methods for Carbon Black in SBR (Styrene-
Butadiene Rubber)—Recipe and Evaluation Procedures
1.1 This practice covers guidelines for the production and
D3192Test Methods for Carbon Black Evaluation in NR
testing for uniformity of a lot of carbon black to be used as an
(Natural Rubber)
Industry Reference Black (IRB).
D3265Test Method for Carbon Black—Tint Strength
1.2 The values stated in SI units are to be regarded as the
D3493Test Method for Carbon Black—Oil Absorption
standard. The values given in parentheses are for information
Number of Compressed Sample (COAN)
only.
D5230Test Method for Carbon Black—Automated Indi-
1.3 This standard does not purport to address all of the
vidual Pellet Hardness
safety concerns, if any, associated with its use. It is the D6556Test Method for Carbon Black—Total and External
responsibility of the user of this standard to establish appro-
Surface Area by Nitrogen Adsorption
priate safety and health practices and determine the applica-
3. Significance and Use
bility of regulatory limitations prior to use.
3.1 These guidelines are intended to ensure that IRBs are
2. Referenced Documents
evaluated by a standard procedure.
2
2.1 ASTM Standards:
3.2 These guidelines are to be used to establish the average
D412TestMethodsforVulcanizedRubberandThermoplas-
physicochemical and physical rubber properties of a lot of
tic Elastomers—Tension
carbon black to be used as an IRB.
D1506Test Methods for Carbon Black—Ash Content
4. Production, Quality Control, and Quality Assurance
D1508Test Method for Carbon Black, Pelleted Fines and
Attrition
4.1 It is assumed that the manufacturer of the IRB will use
D1509Test Methods for Carbon Black—Heating Loss
state-of-the-art techniques to ensure maximum uniformity
D1510Test Method for Carbon Black—Iodine Adsorption
throughouttheentireproductionrun.Theproductionshouldbe
Number
made in one continuous production lot run. The testing called
D1513Test Method for Carbon Black, Pelleted—Pour Den-
for in this practice is not intended to be a substitute for
sity
in-process quality control. This interlaboratory study is only
D1514Test Method for Carbon Black—Sieve Residue
adequate to verify the quality of a homogeneous lot.
D1618 Test Method for Carbon Black Extractables—
4.2 Thesizeofthelotisdeterminedbyhistoricalrecordson
Transmittance of Toluene Extract
the rate of use. The lot should have an expected life of 8 to 10
D2414Test Method for Carbon Black—Oil Absorption
years at the most recent rate of use.
Number (OAN)
D3182PracticeforRubber—Materials,Equipment,andPro- 4.3 The black should be bagged in 50-lb polyethylene bags
cedures for Mixing Standard Compounds and Preparing to reduce moisture incursion. Each pallet of bagged black
Standard Vulcanized Sheets should be wrapped in plastic to reduce environmental expo-
sure.Dependingonthesizeofthelot,thebaggedblackwillbe
segregated into equal sized sublots, typically ten to twenty,
1
This practice is under the jurisdiction of ASTM Committee D24 on Carbon representing some logical subdivision, such as a truck load.
Black and is the direct responsibility of Subcommittee D24.61 on Carbon Black
Sampling and Statistical Analysis.
5. Sampling
Current edition approved Jan. 1, 2017. Published January 2017. Originally
5.1 To avoid having to break down stacked and wrapped
approved in 1982. Last previous edition approved in 2015 as D4122–10a (2015).
DOI: 10.1520/D4122-17.
bags on a pallet, the bags to be used as samples for uniformity
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
and property determination testing are typically removed at
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
appropriatetimesfromthebaggingstream.Atleastonesample
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. persublotwillbecollectedforuniformitytesting.Ifmorethan
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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D4122 − 17
one sample point is identified for each sublot, they should be 6.2.1.1 InaccordancewithTestMethodsD412,TestMethod
spaced to represent approximately equal quantities. Typically, A,testfivedumbbellsfromeachcuredsheetanddeterminethe
two bags are taken at each sampling point. On
...

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: D4122 − 10a (Reapproved 2015) D4122 − 17
Standard Practice for
1
Carbon Black—Evaluation of an Industry Reference Black
This standard is issued under the fixed designation D4122; 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 covers guidelines for the production and testing for uniformity of a lot of carbon black to be used as an Industry
Reference Black (IRB).
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 and health practices and determine the applicability of regulatory
limitations prior to use.
2. Referenced Documents
2
2.1 ASTM Standards:
D412 Test Methods for Vulcanized Rubber and Thermoplastic Elastomers—Tension
D1506 Test Methods for Carbon Black—Ash Content
D1508 Test Method for Carbon Black, Pelleted Fines and Attrition
D1509 Test Methods for Carbon Black—Heating Loss
D1510 Test Method for Carbon Black—Iodine Adsorption Number
D1513 Test Method for Carbon Black, Pelleted—Pour Density
D1514 Test Method for Carbon Black—Sieve Residue
D1618 Test Method for Carbon Black Extractables—Transmittance of Toluene Extract
D2414 Test Method for Carbon Black—Oil Absorption Number (OAN)
D3182 Practice for Rubber—Materials, Equipment, and Procedures for Mixing Standard Compounds and Preparing Standard
Vulcanized Sheets
D3191 Test Methods for Carbon Black in SBR (Styrene-Butadiene Rubber)—Recipe and Evaluation Procedures
D3192 Test Methods for Carbon Black Evaluation in NR (Natural Rubber)
D3265 Test Method for Carbon Black—Tint Strength
D3493 Test Method for Carbon Black—Oil Absorption Number of Compressed Sample (COAN)
D5230 Test Method for Carbon Black—Automated Individual Pellet Hardness
D6556 Test Method for Carbon Black—Total and External Surface Area by Nitrogen Adsorption
3. Significance and Use
3.1 These guidelines are intended to ensure that IRBs are evaluated by a standard procedure.
3.2 These guidelines are to be used to establish the average physicochemical and physical rubber properties of a lot of carbon
black to be used as an IRB.
4. Production, Quality Control, and Quality Assurance
4.1 It is assumed that the manufacturer of the IRB will use state-of-the-art techniques to ensure maximum uniformity throughout
the entire production run. The production should be made in one continuous production lot run. The testing called for in this
practice is not intended to be a substitute for in-process quality control. This interlaboratory study is only adequate to verify the
quality of a homogeneous lot.
1
This practice is under the jurisdiction of ASTM Committee D24 on Carbon Black and is the direct responsibility of Subcommittee D24.61 on Carbon Black Sampling
and Statistical Analysis.
Current edition approved Jan. 1, 2015Jan. 1, 2017. Published February 2015January 2017. Originally approved in 1982. Last previous edition approved in 20102015 as
D4122 – 10a.D4122 – 10a (2015). DOI: 10.1520/D4122-10AR15.10.1520/D4122-17.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D4122 − 17
4.2 The size of the lot is determined by historical records on the rate of use. The lot should have an expected life of 8 to 10
years at the most recent rate of use.
4.3 The black should be bagged in 50-lb polyethylene bags to reduce moisture incursion. Each pallet of bagged black should
be wrapped in plastic to reduce environmental exposure. The Depending on the size of the lot, the bagged black will be segregated
into at least twelve equal sized sublots for uniformity testing.equal sized sublots, typically ten to twenty, representing some logical
subdivision, such as a truck load.
5. Sampling
5.1 After a suitable time to allow the black to stabilize, a bag will be selected
...