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flame test |
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flame test n
(Chemistry) a test for detecting the presence of certain metals in compounds by the coloration they give to a flame. Sodium, for example, turns a flame yellow How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Properties include low specific gravity; no degradation of physical properties of base polymer; long-term thermal and uv protection; non-yellowing and non-blooming; no heavy metals; no forming of dioxins when heated or incinerated; passing UL, MVSS-302 and NFPA flame tests when properly formulated. Zinc borate can be added to any flame retardant system and will improve flame test results with minimal effect on compound properties, according to the company. It is essential that fabrics pass the Vertical Flame Test ASTM 191 A Method 5903, which measures the char length and after flame before and after 25 launderings. |
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