Para. 1 - The Relationship Between Special and Regular School Programs. Special education is an integral part of the total educational enterprise, not a separate order. In any school system, special education is a means of enlarging the capacity of the system to serve the educational needs of all children.
The purity of dental gold is usually 16 karat, but it is slightly more complicated to recycle than jewelry because it may include nonmetal content like tooth enamel or porcelain. The recycler will use a process like acid reduction or reverse electroplating to extract the gold from the nonmetal elements.
A karat measures the purity of gold based on a scale of 1-24, with 24 karats being the purest. What this means is that 24-karat (24K) gold has 99.9% purity, generally referred to as âpureâ gold. 18-karat (18K) gold has 75% pure gold. Its content is 18 parts gold and six parts other metal alloys.