GB/T 26944.2-2011Tunnel environment detection equipment - Part 2: Carbon monoxide detector (English PDF)
隧道环境检测设备 第2部分：一氧化碳检测器
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
July 19, 2011
Implementation date
May 1, 2012
Scope
GB/T 26944.2-2011 is the English-translated version of 隧道环境检测设备 第2部分：一氧化碳检测器.
GB/T 26944.2-2011 is the Chinese standard "Tunnel environment detection equipment - Part 2: Carbon monoxide detector". Its scope clause reads: This section GB/T 26944 specifies the tunnel monoxide detector product classification, technical requirements, test methods, inspection rules, marking Chi, packaging, transport and storage. Its clauses include technical requirements.
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Document preview — GB/T 26944.2-2011
National Standard of the People's Republic of China
- ICS
- 03.220.20
- Classification
- R 80
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 Normative references
- 3 Technical requirements
- 3.1 The main technical indicators
- 3.2 For the environment
- 3.3 Materials and Appearances
- 3.4 Reliability
- 3.5 Functional requirements
1 Scope
This section GB/T 26944 specifies the tunnel monoxide detector product classification, technical requirements, test methods, inspection rules, marking
Chi, packaging, transport and storage.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 26944.1-2011 tunnel environment testing equipment - Part 1. General
3 Technical requirements
3.1 The main technical indicators
3.1.1 Measuring range
(0 ~ 300) × 10-6;
3.1.2 measurement error
tunnel control system according to the device configuration, the carbon monoxide detector measurement error should meet the requirements of Table 1.
Table 1 carbon monoxide detector measurement error in units of parts per million concentration (× 10-6)
Measuring range Basic error (absolute error)
0 ~ 10 ± 1
10 ~ 50 ± 2
> 50 ± 5
3.2 For the environment
Shall comply with GB/T 26944.1-2011 in 3.1 requirements.
3.3 Materials and Appearances
Shall comply with GB/T 26944.1-2011 in 3.2 requirements.
3.4 Reliability
3.4.1
Detector continuously 15d fundamental error should not exceed the specified 3.1.2.
3.4.2
Detector response time should not exceed 35s.
3.4.3
an alarm.
3.5 Functional requirements
Shall comply with GB/T 26944.1-2011 in 3.3 requirements.
......
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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Related Standards
GB/T 26944.3-2011 — Tunnel environment detection equipment - Part 3: Visibility indicator
GB/T 26944.1-2011 — Tunnel environment detection equipment - Part 1: General rule
GB/T 26944.4-2011 — Tunnel environment detection equipment - Part 4: Wind speed & direction indicator
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GB/T 26944.2-2011
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