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ASTM C 323 : 1956 : R2016

Current
Current

The latest, up-to-date edition.

Standard Test Methods for Chemical Analysis of Ceramic Whiteware Clays (Withdrawn 2024)
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

07-11-2016

These test methods cover the chemical analysis of clays used in the manufacture of ceramic whitewares.

1.1These test methods cover the chemical analysis of clays used in the manufacture of ceramic whitewares.

1.2The analytical procedures appear in the following order:

Section

 Moisture

  7

 Loss on Ignition

  8

 Silica

  9

 Iron, Aluminum, and Titanium Oxides

10

 Iron Oxide

11

 Titania

12

 Alumina

13

 Lime

14

 Magnesia

15

 Alkalies

16

Note 1:These test methods have been compiled as standard procedures for use in referee analyses. These test methods, however, when the determination of iron oxide as Fe2O3 is involved, are not intended to preclude the use of other procedures that give results within the permissible variations. For the sake of uniformity the classical Zimmerman-Reinhardt procedure is specified for the determination of iron oxide. It is recognized that numerous other procedures are equally accurate and often more convenient. The other procedures commonly in use include reduction of an oxidized solution with zinc or other metal, and titration with standard potassium permanganate (KMnO4) or potassium dichromate (K2Cr2O7) solution, as well as titration with a standard solution of titanous chloride in an oxidized solution. These procedures shall be considered acceptable, provided the analyst has obtained results by his special procedure that check with the Zimmerman-Reinhardt procedure within the limits specified in Section 17. It is suggested that National Institute of Standards and Technology standard samples be used for checking the accuracy of procedures.

It will be understood that the making of a complete analysis of a ceramic whiteware clay is a difficult procedure requiring a wide knowledge of the chemistry involved in the operations and a thorough training in carrying out the work. A skilled analyst of good training is therefore required to do the work. The descriptions here given cover the vital points of procedure, but frequent reference in regard to the details of the various manipulations should be made to “Applied Inorganic Analysis” by Hillebrand and Lundell2 and to similar publications. Particularly in the determination of alumina, reference should be made to Scientific Paper No. 286 of the National Bureau of Standards.3

1.3The values stated in acceptable metric units are to be regarded as the standard. The values given in parentheses are for information only.

1.4This 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.

Committee
C 21
DocumentType
Test Method
Pages
5
ProductNote
Reconfirmed 2016
PublisherName
American Society for Testing and Materials
Status
Current
Supersedes

ASTM E 11 : 2020 Standard Specification for Woven Wire Test Sieve Cloth and Test Sieves
ASTM E 11 : 2022 Standard Specification for Woven Wire Test Sieve Cloth and Test Sieves
ASTM C 322 : 2009 Standard Practice for Sampling Ceramic Whiteware Clays
ASTM C 322 : 2009 : R2018 Standard Practice for Sampling Ceramic Whiteware Clays
ASTM E 11 : 2017 : REDLINE Standard Specification for Woven Wire Test Sieve Cloth and Test Sieves

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