TS ISO 9802

TS ISO 9802 is a vocabulary standard for raw optical glass and the manufacturing processes associated with it. Optical glass is the starting material for lenses, prisms and other components where transmission quality, homogeneity and controlled optical properties are critical, so precise terminology matters throughout production and supply chains.

What the vocabulary is meant to cover

According to the scope, the document defines terms relating to raw optical glass and related manufacturing processes. The list is not complete; it includes only those terms for which a definition is considered necessary for correct and adequate understanding of the terminology. It also states that the interpretations reflect practical usage in this field and do not necessarily coincide with terminology used elsewhere. In practice, this kind of standard helps ensure that manufacturers, purchasers, and technical users share the same meaning for key words.

Why raw optical glass terminology matters

From a general technical perspective, raw optical glass refers to glass material produced before it is turned into a finished optical part. In optical materials work, terms related to composition, homogeneity, defects, shape and processing stages help distinguish material quality and suitability for later fabrication. Vocabulary standards typically do not prescribe product performance limits; instead, they create a common language that reduces ambiguity in documentation, drawings, specifications and communication between disciplines.

• Covers terminology for raw optical glass and related manufacturing processes.
• The term list is selective, not exhaustive.
• Definitions are based on practical usage in this technical field.
• Meanings may differ from those used in other disciplines.