Chinese Ceramics - Authentication

Authentication

The most widely known test is the thermoluminescence test, or TL test, which is used on some types of ceramic to estimate, roughly, the date of last firing. The TL test is carried out on small samples of porcelain drilled or cut from the body of a piece, which can be risky and disfiguring. For this reason, the test is rarely used for dating finely potted, high-fired ceramics. TL testing cannot be used at all on some types of porcelain items, particularly high-fired porcelain.

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