CJJ/T 121-2008Standard for scenic and historic areas classification (English PDF)
风景名胜区分类标准
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Issued by
Ministry of Housing and Urban-Rural Development of the People's Republic of China
Level / Type
National · Recommended
Issue date
August 11, 2008
Implementation date
December 1, 2008
Scope
CJJ/T 121-2008 is the English-translated version of 风景名胜区分类标准.
CJJ/T 121-2008 — This standard applies to the classification of scenic spots.
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Document preview — CJJ/T 121-2008
National Standard of the People's Republic of China
- ICS
- 91.020
- Classification
- P 50
Issued by: Ministry of Housing and Urban-Rural Development of the People's Republic of China
Contents
- [Preview only]
- 1 General provisions
- 2 Terms
- 2.1 Terms 2
- 2.2 Symbols 2
- 3 Arrangement and installation of pipes
- 3.1 Arrangement of pipes
- 3.2 Installation method
- 3.3 Material of pipes
- 4 Accessories of pipelines
- 4.1 Accessories and facilities of pipelines
- 4.2 Connecting of pipe fittings and pipes
- 4.3 Layout of Gas Odorization Unit
- 4.4 Structural design 11
- 4.5 Electrical and control instruments 13
- 4.6 Design of auxiliary facilities 16
- 5 Calculation of pipe strength and stress
- 5.1 Working pipe
- 5.2 Outer protective pipe
- 5.3 Inspection and Acceptance
- 6 Insulation construction and insulating layer
- 6.1 General requirements
- 6.2 Insulation construction
- 6.3 Vacuum insulating layer
- 6.4 Insulation calculation
- 7 Outer protective pipe and anticorrosion
- 7.2 Stiffness and stability of outer protective pipe
- 7.3 Anticorrosion of outer protective pipe
- 8 Construction and acceptance
- 8.2 Pipe installation
- 8.3 Heat preservation pipe patch
- 8.4 Vacuum system installation
- 8.5 Pressure test, purging and trial operation
- 9 Operation management
- 9.2 Preparation before operation
- 9.3 Warming pipe
- 9.4 Operational maintenance
- 9.5 Operational stop
1 Foreword
CJJ/T 121-2008 was issued by Ministry of Housing and Urban-Rural Development of the People's Republic of China on 11 August 2008 and has been in force since 1 December 2008.
The CJJ/T prefix marks a recommended standard. It is not law in itself: it becomes binding when a contract names it, when a regulation or a mandatory standard refers to it, or when a producer declares conformity with it.
The document runs to 15 pages in English translation.
2 Scope Preview
This standard applies to the classification of scenic spots.
CJJ/T 121-2008 falls under ICS 91.020, in the field of construction materials and building.
This catalogue holds 59 other CJJ/T standards in that field.
In this catalogue, CJJ/T standards carry edition years from 1993 to 2023.
3 About this standard
Issued by: Ministry of Housing and Urban-Rural Development of the People's Republic of China
English translation: about 15 pages
Chinese original: about 23,217 characters
4 Related standards
Standards on related subjects:
GB/T 16311-2024 — Specification and test method for road traffic markings
CJJ/T 307-2019 — Chinese standard
CJJ/T 100-2017 — Technical standard for urban fundamental geographic information system
CJJ/T 189-2014 — Code for warehouse land plan in town and village
5 Classification and status
International classification (ICS): 91.020
Chinese Standard Classification (CCS): P 50
Prefix CJJ/T: recommended standard.
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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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