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" Staron® Solid Surfaces make an elegant, hygienic
and easy-to-maintain surface in any kitchen " |
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1. Test method
THE UNIVERSITY OF PITTSBURGH TEST PROTOCOL (UPitt)
- For Measurement of Acute Lethality of Thermal Decomposition Products of Specimens
- The major function of the UPitt laboratory test method is to provide a means of evaluating the
lethal toxic potency of thermal decomposition products of test materials.
TEST PROCEDURE
- The test protocol calls for samples to be subjected to continuously changing temperature
conditions starting
- The test system generates decomposition products that continuously change in chemical
composition as the temperature increase.
- Animals are exposed to the decomposition products starting when the test sample loses one
percent of its initial weight and continues for 30 min.
- The UPitt protocol utilizes rodent (mouse) lethality as the primary source in evaluating the
toxicity of combustion atmosphere produced by a material.
- Groups of four animals at a time are exposed to the combustion gases generated from different
initial quantities of the test material.
- This establishes a concentration-response relationship.
- From this relationship, the concentration estimated to produce lethality in 50 percent of the
animals within the specified time is obtained by interpolation.
- This concentration, commonly termed the LC50, is a measure of the toxic potency of combustion
atmosphere.
EVALUATION
- The Building Code of the City of New York requires the materials to be ¡°not more toxic than
wood,¡± which requires a passing LC50 value of greater than or equal to 19.7g.
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2. Test result
Zero traces of growth
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| TEST SAMPLE |
LC50 value |
| Solid Color |
84.4g |
| Patterned Color |
81.8g |
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Thermal decomposition of Staron® Solid Surfaces were measured at a temperature greater than 300°C (572°F), which is most likely in case of fire. Staron® Solid Surfaces meet the requirements for interior finish material as defined by Title 27, Chapter 1, Subchapter 5, Article 5, of the Building Code of the City of New York. |
