TB/T 2121-1999 PDF English
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TB/T 2121: Historical versions
| Std ID | Version | USD | Buy | Deliver [PDF] in | Title (Description) |
| TB/T 2121-1999 | English | 599 | Add to Cart | 3 days [Need to translate] | Glass for Railway Ground Annunciator and Signal Indicator |
| TB 2121-1990 | English | 719 | Add to Cart | 5 days [Need to translate] | (Railway signal ground and signal representation Used glass) |
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Basic data
| Standard ID | TB/T 2121-1999 (TB/T2121-1999) |
| Description (Translated English) | Glass for Railway Ground Annunciator and Signal Indicator |
| Sector / Industry | Railway & Train Industry Standard (Recommended) |
| Classification of Chinese Standard | S60;Q37 |
| Word Count Estimation | 17,168 |
| Date of Issue | 8/4/1999 |
| Date of Implementation | 1/1/2000 |
| Older Standard (superseded by this standard) | TB 2121-1990 |
| Adopted Standard | �������� 24179-1980, NEQ; JIS E3303-1977, NEQ |
| Summary | This standard specifies the railway signal ground and signal representation Used glass (hereinafter referred to as the signal glass) of the definition, classification, technical requirements, test methods, inspection rules and signs, packaging, transportation and storage. This standard applies to railroad color light signal, various types of semaphore signal, crossing signals and signal representation using flat glass lens and filters. |
