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.
The yellow gold used in jewelry is made in the same way, and the difference is only in the mixture of the additional metals used. For example, white gold has more zinc, whereas yellow gold usually contains more nickel. Regardless of what metals are added to the gold alloy, its purity is measured in the same way.For example, if a gold ring is 18 karats, this means that out of a maximum of 24 parts, 18 parts are pure gold and the rest is something else.egardless of what metals are added to the gold alloy, its purity is measured in the same way. For example, if a gold ring is 18 karats, this means that out of a maximum of 24 parts, 18 parts are pure gold and the rest is something else.