Rating: 5/5 Perfect. This review is from: Fosmon PC to TV Converter Box compatible with Windows and Mac (VGA To RCA / VGA To S-Video). Pros: Easy to use and works well with an older TV. Cons: Set to default to black and white, probably why people had some issues with it.ating: 5/5 Perfect. This review is from: Fosmon PC to TV Converter Box compatible with Windows and Mac (VGA To RCA / VGA To S-Video). Pros: Easy to use and works well with an older TV. Cons: Set to default to black and white, probably why people had some issues with it.
âThere are two simple tests you can try to determine whether the leather is chrome, or vegetable-tannedâ. Test 1: Put a small narrow strip of leather in boiling water. If the leather instantly curls up, it is vegetable-tanned.A chrome-tanned leather will just float around in water.Test 2: Burn a piece of leather with a lighter.If you have a vegetable-tanned leather, it will not burn in flames and the ashes will be grey or black. A chrome-tanned leather will burn more easily and its ashes are green.est 1: Put a small narrow strip of leather in boiling water. If the leather instantly curls up, it is vegetable-tanned. A chrome-tanned leather will just float around in water. Test 2: Burn a piece of leather with a lighter.
Tanning hide into leather involves a process which permanently alters the protein structure of skin. Tanning can be performed with either vegetable or mineral methods. Before tanning, the skins are unhaired, degreased, desalted and soaked in water over a period of 6 hours to 2 days. To prevent damage of the skin by bacterial growth during the soaking period, biocides, typically dithiocarbamates, may be used.