TB/T 2121-1999
Glass for railway ground signals and signal indicators (English Version)

Standard No.

TB/T 2121-1999

Language

Chinese, Available in English version

Release Date

1999

Published By

Professional Standard - Railway

Latest

TB/T 2121-1999

Replace

TB 2121-1990

Scope

This standard specifies the definition, classification, technical requirements, test methods, inspection rules and marking, packaging, transportation and storage of glass for railway ground signals and signal indicators (hereinafter referred to as signal glass). This standard applies to various types of glass lenses and flat filters used in railway color light signals, arm signals, crossing signals and signal indicators.

TB/T 2121-1999 Referenced Document

• GB 191-1990 Packaging--Pictorial markings for handling of goods
• GB/T 2828-1987 Batch-by-batch inspection counting sampling procedure and sampling table (applicable to continuous batch inspection)
• GB/T 2829-1987 Periodic inspection counting sampling procedure and sampling table (applicable to the inspection of the stability of the production process)

TB/T 2121-1999 history

• 1999 TB/T 2121-1999 Glass for railway ground signals and signal indicators
• 0000 TB 2121-1990