ASTM D5817-03a(2014)
Standard Practice for Carbon Black, Pelleted—Reduction, Blending, and Drying of Gross Samples for Testing

Standard No.

ASTM D5817-03a(2014)

Release Date

2003

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM D5817-19

Latest

ASTM D5817-20

Scope

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 nonrepresentative sample to be used in subsequent testing. Individual test methods provide for minimum amounts of material to be tested.

4.2 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.

4.3 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.

4.4 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).

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 D3053.

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.

ASTM D5817-03a(2014) Referenced Document

• ASTM D1506 Standard Test Methods for Carbon Blackmdash;Ash Content
• ASTM D1508 Standard Test Method for Carbon Black, Pelleted-Fines and Attrition
• ASTM D1509 Standard Test Methods for Carbon Blackmdash;Heating Loss
• ASTM D1510 Standard Test Method for Carbon Black8212;Iodine Adsorption Number
• ASTM D1511 Standard Test Method for Carbon Black—Pellet Size Distribution
• ASTM D1512 Standard Test Methods for Carbon Black-pH Value
• ASTM D1513 Standard Test Method for Carbon Black, Pelleted-Pour Density
• ASTM D1514 Standard Test Method for Carbon Black—Sieve Residue
• ASTM D1618 Standard Test Method for Carbon Black ExtractablesTransmittance of Toluene Extract
• ASTM D1619 Standard Test Methods for Carbon Black-Sulfur Content
• ASTM D1765 Standard Classification System for Carbon Blacks Used in Rubber Products (Standard + Redline PDF Bundle)
• ASTM D1799 Standard Practice for Carbon Black-Sampling Packaged Shipments
• ASTM D1900 Standard Practice for Carbon Black8212;Sampling Bulk Shipments
• ASTM D2414 Standard Test Method for Carbon Black—Oil Absorption Number (OAN)
• ASTM D3053 Standard Terminology Relating to Carbon Black
• ASTM D3191 Standard Test Methods for Carbon Black in SBR (Styrene-Butadiene Rubber)—Recipe and Evaluation Procedures
• ASTM D3192 Standard Test Methods for Carbon Black Evaluation in NR (Natural Rubber)
• ASTM D3265 Standard Test Method for Carbon Black—Tint Strength
• ASTM D3493 Standard Test Method for Carbon Black—Oil Absorption Number of Compressed Sample (COAN)
• ASTM D412 Standard Test Methods for Vulcanized Rubber and Thermoplastic Elastomers8212;Tension
• ASTM D5230 Standard Test Method for Carbon Black—Automated Individual Pellet Hardness
• ASTM D6556 Standard Test Method for Carbon Black—Total and External Surface Area by Nitrogen Adsorption

ASTM D5817-03a(2014) history

• 2020 ASTM D5817-20 Standard Practice for Carbon Black, Pelleted—Reduction, Blending, and Drying of Gross Samples for Testing
• 2019 ASTM D5817-19 Standard Practice for Carbon Black, Pelleted—Reduction, Blending, and Drying of Gross Samples for Testing
• 2003 ASTM D5817-03a(2014) Standard Practice for Carbon Black, Pelleted—Reduction, Blending, and Drying of Gross Samples for Testing
• 2003 ASTM D5817-03a(2008) Standard Practice for Carbon Black, Pelleted - Reduction, Blending, and Drying of Gross Samples for Testing
• 2003 ASTM D5817-03a Standard Practice for Carbon Black, Pelleted8212;Reduction, Blending, and Drying of Gross Samples for Testing
• 2003 ASTM D5817-03 Standard Practice for Carbon Black, Pelleted-Reduction, Blending, and Drying of Gross Samples for Testing
• 1996 ASTM D5817-96 Standard Practice for Carbon Black, Pelleted-Reduction and Blending of Gross Samples