Valid

TB/T 2121-1999Glass for Railway Ground Annunciator and Signal Indicator (English PDF)

铁路地面信号机及信号表示器用玻璃

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Issued by

National Railway Administration

Level / Type

National · Recommended

Issue date

July 30, 1999

Implementation date

January 1, 2000

Scope

TB/T 2121-1999 is the English-translated version of 铁路地面信号机及信号表示器用玻璃.

TB/T 2121-1999 is the Chinese industry standard "Glass for Railway Ground Annunciator and Signal Indicator". It was issued on July 30, 1999 by the National Railway Administration, and took effect on January 1, 2000. It is in force and replaces TB 2121-1990.

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Document preview — TB/T 2121-1999

National Standard of the People's Republic of China

Issued by: National Railway Administration

Document data

1 Document data

Sector: Railway (industry standard).

Issuing body: National Railway Administration.

Date of issue: 1999-07-30.

Date of implementation: 2000-01-01.

Status: valid, replaces TB 2121-1990.

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

Editions of TB/T 2121

Edition	Title	Revision	Status
TB/T 2121-1999	Glass for Railway Ground Annunciator and Signal Indicator	—	Valid
TB 2121-1990	Railway signal ground and signal representation Used glass	—	Obsolete

This page sells the current edition, TB/T 2121-1999. Earlier editions are listed for reference only.

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