ASTM D5817-03a(2008)

Standard Practice for Carbon Black, Pelleted - Reduction, Blending, and Drying of Gross Samples for Testing

SIGNIFICANCE AND USE
Several test methods for carbon black require the reduction in sample size or the blending of the test sample to reduce the variation of the measured characteristic. Other factors being equal, larger samples will tend to be more representative of the total supply. This practice provides procedures for reducing the large sample obtained from the bag and bulk sampling practices to a convenient size for conducting a number of tests to describe the material and measure its quality in such a manner that the smaller portion is most likely to be a representation of the bulk sample. Failure to follow the procedures in this practice could result in providing a nonrepresentative sample to be used in subsequent testing. Individual test methods provide for minimum amounts of material to be tested.
Test Method A, Reduction of Sample Size, is typically used to obtain an aliquot from a large sample, splitting a black into two or more equal portions, or reducing a blended black from Test Method B to a specified sample size. The final sample is always smaller than the original sample and would not be considered to be a “well blended” sample.
Test Method B, Blending of Carbon Black, is typically used to prepare a homogeneous sample. The homogeneous sample may be used for several tests (see Note 3) or may be reduced in size by Test Method A. The final sample size is the same as the original.
When a sample is to be blended and reduced, the sample should be blended (Test Method B) before reduction (Test Method A). The blending and reduction must be done before the sample is dried (Test Method C).
SCOPE
1.1 This practice describes the procedure for blending of pelleted carbon black, the procedure for the reduction of gross samples of pelleted carbon black to the appropriate size for testing and the preparation of the sample for testing. These techniques are intended to minimize variations in measured characteristics between test samples. Standard terminology relating to carbon black samples is found in Terminology D 3053.
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: 30-Jun-2008
• ICS: 71.060.10 - Chemical elements
• Technical Committee: D24 - Carbon Black
• Drafting Committee: D24.61 - Carbon Black Sampling and Statistical Analysis

Relations

• Replaces: ASTM D5817-03a - Standard Practice for Carbon Black, Pelleted—Reduction, Blending, and Drying of Gross Samples for Testing
• Effective Date: 01-Jul-2008
• Referred By: ASTM D1508-23 - Standard Test Method for Carbon Black, Pelleted Fines and Attrition
• Effective Date: 01-Jul-2008
• Referred By: ASTM D1900-20 - Standard Practice for Carbon Black—Sampling Bulk Shipments
• Effective Date: 01-Jul-2008
• Referred By: ASTM D1511-12(2023) - Standard Test Method for Carbon Black—Pellet Size Distribution
• Effective Date: 01-Jul-2008
• Referred By: ASTM D8466-22 - Standard Guide for Recovered Carbon Black—Carbon Black Test Methods for Testing rCB
• Effective Date: 01-Jul-2008
• Referred By: ASTM D1799-20 - Standard Practice for Carbon Black—Sampling Packaged Shipments
• Effective Date: 01-Jul-2008

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: D5817 − 03a(Reapproved 2008)
Standard Practice for
Carbon Black, Pelleted—Reduction, Blending, and Drying of
Gross Samples for Testing
This standard is issued under the fixed designation D5817; 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 D1514 Test Method for Carbon Black—Sieve Residue
D1618 Test Method for Carbon Black Extractables—
1.1 This practice describes the procedure for blending of
Transmittance of Toluene Extract
pelleted carbon black, the procedure for the reduction of gross
D1619 Test Methods for Carbon Black—Sulfur Content
samples of pelleted carbon black to the appropriate size for
D1765 Classification System for Carbon Blacks Used in
testing and the preparation of the sample for testing. These
Rubber Products
techniques are intended to minimize variations in measured
D1799 Practice for Carbon Black—Sampling Packaged
characteristics between test samples. Standard terminology
Shipments
relating to carbon black samples is found in Terminology
D1900 Practice for Carbon Black—Sampling Bulk Ship-
D3053.
ments
1.2 The values stated in SI units are to be regarded as the
D2414 Test Method for Carbon Black—Oil Absorption
standard. The values given in parentheses are for information
Number (OAN)
only.
D3053 Terminology Relating to Carbon Black
1.3 This standard does not purport to address all of the D3191 Test Methods for Carbon Black in SBR (Styrene-
safety concerns, if any, associated with its use. It is the
Butadiene Rubber)—Recipe and Evaluation Procedures
responsibility of the user of this standard to establish appro- D3192 Test Methods for Carbon Black Evaluation in NR
priate safety and health practices and determine the applica-
(Natural Rubber)
bility of regulatory limitations prior to use. D3265 Test Method for Carbon Black—Tint Strength
D3493 Test Method for Carbon Black—Oil Absorption
2. Referenced Documents
Number of Compressed Sample (COAN)
2.1 ASTM Standards:
D5230 Test Method for Carbon Black—Automated Indi-
D412 Test Methods forVulcanized Rubber andThermoplas-
vidual Pellet Hardness
tic Elastomers—Tension
D6556 Test Method for Carbon Black—Total and External
D1506 Test Methods for Carbon Black—Ash Content
Surface Area by Nitrogen Adsorption
D1508 Test Method for Carbon Black, Pelleted Fines and
Attrition
3. Summary of Test Methods
D1509 Test Methods for Carbon Black—Heating Loss
3.1 Test Method A—Reduction of Sample Size:
D1510 Test Method for Carbon Black—Iodine Adsorption
3.1.1 The gross bulk sample is poured through the riffle
Number
sample splitter.Aportion of the sample is reintroduced into the
D1511 Test Method for Carbon Black—Pellet Size Distri-
splitter as many times as necessary to reduce the gross sample
bution
to the size desired for the intended test portion.The test portion
D1512 Test Methods for Carbon Black—pH Value
may not be homogeneous.
D1513 Test Method for Carbon Black, Pelleted—Pour Den-
3.2 Test Method B—Blending of Carbon Black:
sity
3.2.1 The gross sample is poured through the riffle sample
splitter a minimum of four times in a specific sequence to
This practice is under the jurisdiction of ASTM Committee D24 on Carbon
prepare a homogeneous test portion. The black must be
Black and is the direct responsibility of Subcommittee D24.61 on Carbon Black
Sampling and Statistical Analysis.
cross-blended to accomplish a homogeneous portion for test-
Current edition approved July 1, 2008. Published September 2008. Originally
ing.
approved in 1995. Last previous edition approved in 2003 as D5817 – 03a. DOI:
10.1520/D5817-03AR08.
3.3 Test Method C—Drying of Carbon Black:
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
3.3.1 For all test methods listed in Section 2 except: the
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Fines and Attrition (Test Method D1508), Heating Loss (Test
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. Methods D1509), Pellet Size Distribution (Test Method
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
D5817 − 03a (2008)
D1511), pH Value (Test Methods D1512), Pour Density (Test
Method D1513), Sieve Residue (Test Method D1514), Sulfur
Content (Test Methods D1619), and Pellet Hardness (Test
Method D5230) test methods, the sample must be dried before
testing begins.
NOTE 1—Samples that are known to be dry (< 1.0 % moisture) due to
prior preparation or production processing may be tested without further
drying.
4. Significance and Use
4.1 Several test methods for carbon black require the
reduction in sample size or the blending of the test sample to
reduce the variation of the measured characteristic. Other
factors being equal, larger samples will tend to be more
representative of the total supply. This practice provides
NOTE 1—May be constructed as either closed or open type.
proceduresforreducingthelargesampleobtainedfromthebag
FIG. 1 Riffle Sample Splitter
andbulksamplingpracticestoaconvenientsizeforconducting
a number of tests to describe the material and measure its
quality in such a manner that the smaller portion is most likely
5.2 Oven, gravity-convection type, capable of temperature
to be a representation of the bulk sample. Failure to follow the
regulation of within 61°C at 125°C and temperature unifor-
procedures in this practice could result in providing a nonrep-
mity within 65°C.
resentative sample to be used in subsequent testing. Individual
test methods provide for minimum amounts of material to be
5.3 Desic
...

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:D5817–03 Designation: D 5817 – 03a (Reapproved 2008)
Standard Practice for
Carbon Black, Pelleted—Reduction, Blending, and Drying of
Gross Samples for Testing
This standard is issued under the fixed designation D 5817; 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 describes the procedure for blending of pelleted carbon black, the procedure for the reduction of gross samples
of pelleted carbon black to the appropriate size for testing and the preparation of the sample for testing. These techniques are
intended to minimize variations in measured characteristics between test samples. Standard terminology relating to carbon black
samples is found in Terminology D 3053.
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
2.1 ASTM Standards:
D412Test Methods for Vulcanized Rubber and Thermoplastic Elastomers—Tension
D1506Test Methods for Carbon Black—Ash Content 412 Test Methods for Vulcanized Rubber and Thermoplastic
ElastomersTension
D 1506 Test Methods for Carbon BlackAsh Content
D 1508 Test Method for Carbon Black, Pelleted Fines and Attrition
D 1509 Test Methods for Carbon Black—Heating Loss
D 1510 Test Method for Carbon Black—Iodine Adsorption Number
D 1511 Test Method for Carbon Black—Pellet Size Distribution
D 1512 Test Methods for Carbon Black—pHBlackpH Value
D 1513 Test Method for Carbon Black, Pelleted—Pour Density
D 1514 Test Method for Carbon Black—Sieve Residue
D 1618 Test Method for Carbon Black Extractables—Transmittance of Toluene Extract
D 1619 Test Methods for Carbon Black—Sulfur Content
D 1765 Classification System for Carbon Blacks Used in Rubber Products
D 1799 Practice for Carbon Black—Sampling Packaged Shipments
D 1900 Practice for Carbon Black—Sampling Bulk Shipments
D2414Test Method for Carbon Black—Oil Absorption Number 2414 Test Method for Carbon BlackOil Absorption Number
(OAN)
D 3053 Terminology Relating to Carbon Black
D 3191 Test Methods for Carbon Black in SBR (Styrene-Butadiene Rubber)—Recipe and Evaluation Procedures
D 3192 Test Methods for Carbon Black Evaluation in NR (Natural Rubber)
D 3265 Test Method for Carbon Black—Tint Strength
D 3493 Test Method for Carbon Black—OilBlackOil Absorption Number of Compressed Sample (COAN)
D 5230 Test Method for Carbon Black—Automated Individual Pellet Hardness
D 6556 Test Method for Carbon Black—Total and External Surface Area by Nitrogen Adsorption
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. 10, 2003. Published February 2003. Originally approved in 1995. Last previous edition approved in 1996 as D5817–96.
Current edition approved July 1, 2008. Published September 2008. Originally approved in 1995. Last previous edition approved in 2003 as D 5817 – 03a.
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at [e-mail]. ForAnnualBookofASTMStandards
, Vol 09.01.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.
D 5817 – 03a (2008)
3. Summary of Test Methods
3.1 Test Method A—Reduction of Sample Size:
3.1.1 The gross bulk sample is poured through the riffle sample splitter.Aportion of the sample is reintroduced into the splitter
as many times as necessary to reduce the gross sample to the size desired for the intended test portion. The test portion may not
be homogeneous.
3.2 Test Method B—Blending of Carbon Black:
3.2.1 The gross sample is poured through the riffle sample splitter a minimum of four times in a specific sequence to prepare
a homogeneous test portion. The black must be cross-blended to accomplish a homogeneous portion for testing.
3.3 Test Method C—Drying of Carbon Black:
3.3.1 For all test methods listed in Section 2 except: the Fines andAttrition (Test Method D 1508), Heating Loss (Test Methods
D 1509), Pellet Size Distribution (Test Method D 1511), pH Value (Test Methods D 1512), Pour Density (Test Method D 1513),
Sieve Residue (Test Method D 1514), Sulfur Content (Test Methods D 1619), and Pellet Hardness (Test Method D 5230) test
methods, the sample must be dried before testing begins.
NOTE 1—Samples that are known to be dry (< 1.0 % moisture) due to prior preparation or production processing may be tested without further drying.
4. Significance and Use
4.1 Several test methods for carbon black require the reduction in sample size or the blending of the test sample to reduce the
variation of the measured characteristic. Other factors being equal, larger samples will tend to be more representative of the total
supply. This practice provides procedures for reducing the large sample obtained from the bag and bulk sampling practices to a
convenient size for conducting a number of tests to describe the material and measure its quality in such a manner that the smaller
portion is most likely to be a representation of the bulk sample. Failure to follow the procedures in this practice could result in
providing a nonrepre
...