HG/T 6452-2026Cellulose triacetate (TAC) film for resin base polarizer lens (English PDF)

HG/T 6452-2026 is the English-translated version of 树脂偏光镜用三醋酸纤维素酯（TAC）薄膜.

HG/T 6452-2026 covers cellulose triacetate (TAC) film used for resin polarizer lenses. It specifies the product structure, requirements, test methods, inspection rules, marking, packaging, transport and storage of the film. It applies to TAC film for plano (non-prescription) and myopia polarized resin lenses. The film is a component of polarized spectacle lenses, and the standard defines what is expected of it when it is supplied to lens makers.

Film producers, polarized lens manufacturers, buyers and test laboratories can use the document to specify, accept and check the material. It is a voluntary standard, as the /T in the code indicates. It was issued by the Ministry of Industry and Information Technology on 16 April 2026 and takes effect on 1 November 2026. It is a new standard and does not replace a previous edition.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

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