ASTM C324-01(2022)e1

Standard Test Method for Free Moisture in Ceramic Whiteware Clays

ABSTRACT
This test method covers the determination of free moisture in ceramic whiteware clays. Whiteware clays may be shipped as a bulk shipment in lumps, a bulk shipment of shredded or coarsely ground clay, or in bagged lots of ground or airfloated clay. Directions are given in this test method for obtaining representative samples of the clay shipment to be used in subsequent tests for the properties of the clay in the shipment. Percentage of free moisture shall be calculated to the nearest 0.1%.
SCOPE
1.1 This test method covers the determination of free moisture in ceramic whiteware clays. Whiteware clays may be shipped as a bulk shipment in lumps, a bulk shipment of shredded or coarsely ground clay, or in bagged lots of ground or airfloated clay. Directions are given in this test method for obtaining representative samples of the clay shipment to be used in subsequent tests for the properties of the clay in the shipment.  
1.2 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.  
1.3 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-2022
• ICS: 81.060.10 - Raw materials
• Technical Committee: C21 - Ceramic Whitewares and Related Products
• Drafting Committee: C21.04 - Raw Materials

Relations

• Refers: ASTM C322-09(2014) - Standard Practice for Sampling Ceramic Whiteware Clays
• Effective Date: 01-Dec-2014
• Refers: ASTM C322-09 - Standard Practice for Sampling Ceramic Whiteware Clays
• Effective Date: 01-Jan-2009
• Refers: ASTM C322-03 - Standard Practice for Sampling Ceramic Whiteware Clays
• Effective Date: 01-Oct-2003
• Refers: ASTM C322-82(1997)e1 - Standard Practice for Sampling Ceramic Whiteware Clays
• Effective Date: 01-Jan-1997

Overview

ASTM C324-01(2022)e1 - Standard Test Method for Free Moisture in Ceramic Whiteware Clays - establishes a reliable procedure to determine the percentage of free moisture present in ceramic whiteware clays. The standard applies to a variety of clay shipment forms, including lumps, shredded or coarsely ground clay, and bagged lots of ground or air-floated clay. Accurate measurement of free moisture is essential for evaluating the physical properties of ceramic clays and ensuring high-quality production processes in the ceramics industry.

Key Topics

• Determination of Free Moisture: The core focus of ASTM C324-01(2022)e1 is the quantification of free water content within ceramic whiteware clays, reported to the nearest 0.1%.
• Sampling Requirements: Clear instructions are provided for obtaining representative clay samples, referencing ASTM C322 for sampling practices. Samples must be at least 1000 grams, stored in airtight containers to preserve their moisture content before testing.
• Testing Procedure: The method involves weighing a portion of the sample, carefully drying it at 100°C to 110°C for 24 hours, and then reweighing to calculate moisture loss.
• Calculation Methods: The percentage of free moisture is determined on both a dry weight and a wet weight basis, using precise mathematical formulas.
• Safety and Compliance: Users are reminded of their responsibility to establish appropriate safety, health, and environmental practices and to evaluate any regulatory requirements prior to use.

Applications

• Quality Control in Ceramic Manufacturing: Monitoring and controlling free moisture content in ceramic whiteware clays is critical for ensuring consistency and structural integrity in end products like tiles, sanitaryware, and pottery.
• Raw Material Assessment: Consistent moisture measurement provides valuable data for raw material evaluation, production planning, and inventory management.
• Process Optimization: Understanding the moisture profile helps manufacturers adjust drying, forming, and firing processes for optimal material behavior and cost efficiency.
• Material Procurement: Suppliers and buyers rely on standardized testing methods to specify material requirements, promoting transparent transactions and reducing disputes over product quality.

Related Standards

• ASTM C322 - Practice for Sampling Ceramic Whiteware Clays: Provides essential procedures for collecting representative samples, referenced directly in ASTM C324.
• Other ASTM Ceramic Standards: Additional test methods address properties such as plasticity, particle size, and chemical composition relevant to ceramic raw materials.
• International Harmonization: This standard was developed in alignment with international standardization principles as set by the World Trade Organization (WTO) Technical Barriers to Trade (TBT) Committee, facilitating global trade and regulatory compliance.

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Keywords: ASTM C324, free moisture, ceramic whiteware clays, moisture content, ceramic industry standards, clay testing, raw material quality, ASTM standards, ceramics quality control

For organizations involved in the production, procurement, or testing of ceramic clays, adherence to ASTM C324-01(2022)e1 ensures consistency, reliability, and compatibility with global best practices in ceramic material testing.

Standards Content (Sample)

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: C324 − 01 (Reapproved 2022)
Standard Test Method for
Free Moisture in Ceramic Whiteware Clays
This standard is issued under the fixed designation C324; 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.
ε NOTE—Subsection 2.1 was editorially updated in September 2022.
1. Scope 3. Sampling
1.1 This test method covers the determination of free
3.1 The sample shall be obtained in accordance with Prac-
moisture in ceramic whiteware clays. Whiteware clays may be
tice C322. The sample submitted for testing shall weigh not
shipped as a bulk shipment in lumps, a bulk shipment of
less than 1000 g and shall be kept in an airtight container to
shredded or coarsely ground clay, or in bagged lots of ground
prevent loss of water before testing.
or airfloated clay. Directions are given in this test method for
obtaining representative samples of the clay shipment to be
4. Procedure
used in subsequent tests for the properties of the clay in the
shipment.
4.1 Remove the sample of clay from its container. Weigh
about 500 g of the sample to the nearest 0.1 g. Spread out the
1.2 This standard does not purport to address all of the
weighed portion of the sample in a weighed shallow metal or
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro- porcelain container, and dry at 100 °C to 110 °C for 24 h in a
priate safety, health, and environmental practices and deter- drying oven. Reweigh the dried clay, as quickly as possible, to
mine the applicability of regulatory limitations prior to use.
the nearest 0.1 g.
1.3 This international standard was developed in accor-
dance with internationally recognized principles on standard-
5. Calculation
ization established in the Decision on Principles for the
5.1 Calculate the percentage of free moisture to the nearest
Development of International Standards, Guides and Recom-
0.1 % as follows:
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
Free moisture, dry weight basis,% 5 A 2 B /B 3100 (1)
@~ ! #
Free mois
...