ASTM C484-99

Standard Test Method for Thermal Shock Resistance of Glazed Ceramic Tile

SCOPE
1.1 This test method covers the determination of the resistance of glazed ceramic tile to thermal shock.  
1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.  
1.3 This standard may involve hazardous materials, operations, and equipment. This standard does not purport to address all of the safety problems 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: 09-Apr-1999
• ICS: 91.100.25 - Terracotta building products
• Technical Committee: C21 - Ceramic Whitewares and Related Products
• Drafting Committee: C21.06 - Ceramic Tile

Relations

• Replaced By: ASTM C484-99(2003) - Standard Test Method for Thermal Shock Resistance of Glazed Ceramic Tile
• Effective Date: 01-Oct-2003

Standards Content (Sample)

NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: C 484 – 99
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Test Method for
Thermal Shock Resistance of Glazed Ceramic Tile
This standard is issued under the fixed designation C 484; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope 6. Apparatus
1.1 This test method covers the determination of the resis- 6.1 Water Bath, for testing with immersion, through which
tance to thermal shock of glazed ceramic tiles under normal 15 6 5°C (59 6 9°F) water flows at a rate of 1 gal/min. The
conditions of use. bath shall hold at least 5 gal (19 L) of water and shall be of
1.2 The values stated in SI units are to be regarded as the dimensions such that five whole tiles are immersed completely
standard. The values given in parentheses are for information when placed in the bath vertically.
only. 6.2 Covered Water Bath, for testing without immersion,
1.3 This standard does not purport to address all of the consisting of the Water Bath in 6.1 covered with an aluminum
safety concerns, if any, associated with its use. It is the sheet and layer of aluminum grains. The aluminum sheet shall
responsibility of the user of this standard to establish appro- be 5.18–mm (0.204–in.) thick—No. 4 B&S—gage and of
priate safety and health practices and determine the applica- dimensions such that five whole tiles can be placed glazed face
bility of regulatory limitations prior to use. down on it. The aluminum sheet shall cover the mouth of the
bath with the flow of water directed such that it is in contact
2. Referenced Documents
with bottom surface of the aluminum sheet. The entire top
2.1 ASTM Standards: surface of the aluminum sheet shall be covered with a 3–mm
C 242 Terminology of Ceramic Whitewares and Related
(0.197–in.) thick layer of aluminum grains. The diameters of
Products the aluminum grains shall be in the range of 0.3 mm (0.012 in.)
C 373 Test Method for Water Absorption, Bulk Density, to 0.6 mm (0.024 in.).
Apparent Porosity, and Apparent Specific Gravity of Fired
6.3 Oven, capable of maintaining a constant temperature of
Whiteware Products 145 6 5°C (293 6 9°F).
3. Terminology
7. Sampling
3.1 Definitions—For the definitions of terms used on this 7.1 The test sample shall consist of five whole tiles or trim
test method, refer to Terminology C 242.
units, selected at random from the lot to be tested.
4. Summary of Test Method 8. Procedure
4.1 This test method consists of determining the thermal
8.1 Before testing for resistance to thermal shock, inspect
shock resistance of ceramic tiles by cycling a sample ten times the tiles for visible defects. To assist in detecting defects, a
between the temperatures of 15 6 5°C (59 6 9°F) and 145 6
suitable stain, such as waterproof black India ink or a 1 %
5°C (293 6 9°F). This test method includes two procedures, aqueous solution of methylene blue, may be used. Apply the
with and without immersion, for tiles with a water absorption
ink or dye solution to the face of the tiles and wipe off with a
less than or equal to 10 % and tiles with a water absorption damp cloth after 1 min. All tiles should be free from defects
greater than 10 %, respectively. After completing ten cycles,
before testing.
the tiles are inspected for an
...