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Instrument for precipitation observation -- Part 3: Siphon rainfall recorder
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Basic data
| Standard ID | GB/T 21978.3-2008 (GB/T21978.3-2008) |
| Description (Translated English) | Instrument for precipitation observation -- Part 3: Siphon rainfall recorder |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | N93 |
| Classification of International Standard | 07.060 |
| Word Count Estimation | 11,149 |
| Date of Issue | 2008-06-17 |
| Date of Implementation | 2008-10-01 |
| Regulation (derived from) | Announcement of Newly Approved National Standards No. 10 of 2008 (total 123) |
| Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China |
| Summary | This standard specifies the siphon rain gauge (hereinafter referred to as rain gauge) structure and composition of products, technical requirements, test methods, inspection rules and signs, instructions, packaging, transportation, storage and so on. This section applies to a continuous record rainfall, rainfall intensity rainfall time and siphon rain gauge. |
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GB/T 21978.2|GB/T 21978.3-2008: Instrument for precipitation observation -- Part 3: Siphon rainfall recorder
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Instrument for precipitation observation Part 3. Siphon rainfall recorder
ICS 07.060
N93
National Standards of People's Republic of China
Precipitation observation instrument
Part 3. Siphon rain gauge
Posted 2008-06-17
2008-10-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
GB/T 21978 "Precipitation observation instruments" is divided into seven parts.
--- Part 1. gauges;
--- Part 2. tipping bucket rain gauge;
--- Part 3. Siphon rain gauge;
--- Part 4. float rain gauge;
--- Part 5. telemetry rain gauge;
--- Part 6. Snowmelt snow meter;
--- Part 7. Optical snow meter.
This section GB/T 21978 Part 3.
This section proposed by the People's Republic of China Ministry of Water Resources.
This part of the National Technical Committee of Standardization Technical Committee hydrological hydrological instruments (TC199/SC1) centralized.
This part mainly drafted by. MWR hydrological instruments and geotechnical engineering Instrument Quality Supervision and Testing Center, Nanjing Auto Hydrological
The Institute.
The main drafters of this section. Zhou Xiaoqing, Feng Na Min, Xu Lu, Lu Weijia.
Precipitation observation instrument
Part 3. Siphon rain gauge
1 Scope
This section GB/T 21978 specifies the siphon rain gauge (hereinafter referred to as gauges) product structures, technical requirements, test side
Method, inspection rules and signs, instructions, packaging, transportation, storage and so on.
This section applies to continuous recording rainfall, rainfall intensity and rainfall time siphon rain gauge.
2 Normative references
The following documents contain provisions which, through reference GB/T 21978 in this section constitute provisions of this section. For dated reference documents
Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section
Parties to research agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this
section.
GB/T 9359 Basic environmental testing instruments hydrological conditions and methods
GB/T 13264 percent nonconforming small lot sampling inspection procedures and sample forms
GB/T 18185-2000 hydrological instruments reliability technical requirements
GB/T 18522.2 hydrologic instruments - Part 2. Reference Operating Conditions
GB/T 18522.6 hydrologic instruments - Part 6. inspection rules and signs, packaging, transportation, storage and operation manual
GB/T 19677 Terms and symbols for hydrological Instruments (GB/T 19677-2005, ISO 772. 1988, NEQ)
3 Terms and Definitions
GB/T 19677 and established the following terms and definitions apply GB/T 21978 in this section.
3.1
Has entered the mouth of the rain rains trapped part has not been measured. Wetting loss generally occurs when the rains start.
4 Product structure and composition
Cheng rain gauge by the mouth, float chamber, self-recording clock, siphons, etc., shown in Figure 1.
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