Other kinds of welding. Some kinds of welding do not use an electric arc. They might use a flame, electricity without an arc, an energy beam, or physical force. The most common type of welding that does not use an arc is called gas welding.
TDW - Total Diamond Weight. A term usually used when there is more than one diamond in a particular piece of jewelry. The combined weight of all of the (diamond) stones.
Total Dissolved Solids (TDS) is a measure of the combined content of all contaminants contained in drinking water.A standard definition for âdissolved solidsâ is that they must be small enough to pass through a 2 micron filter. Contaminants larger than 2 microns are often referred to as Total Suspended Solids.otal Dissolved Solids (TDS) is a measure of the combined content of all contaminants contained in drinking water.