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Instrument for precipitation observation -- Part 2: Tipping bucket rainfall sensor
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Basic data
| Standard ID | GB/T 21978.2-2014 (GB/T21978.2-2014) |
| Description (Translated English) | Instrument for precipitation observation -- Part 2: Tipping bucket rainfall sensor |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | N93 |
| Classification of International Standard | 07.060 |
| Word Count Estimation | 11,185 |
| Date of Issue | 7/8/2014 |
| Date of Implementation | 1/19/2015 |
| Older Standard (superseded by this standard) | GB/T 11832-2002 |
| Quoted Standard | GB/T 9359; GB/T 13264; GB/T 18185-2000; GB/T 18522.3-2001; GB/T 18522.6-2007; GB/T 19677; GB/T 50095 |
| Regulation (derived from) | 2014 National Standards Bulletin No. 18 |
| 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 requirements for tipping bucket rain sensor, test methods, inspection rules, signs and the use of brochures, packaging, transportation, storage and so on. This section applies to continuous observations of rainfall tipping bucket r |
Similar standards
GB/T 21978.5|GB/T 21978.2-2014: Instrument for precipitation observation -- Part 2: Tipping bucket rainfall sensor
---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 2.. Tipping bucket rainfall sensor
ICS 07.060
N93
National Standards of People's Republic of China
Replacing GB/T 11832-2002
Precipitation observation instrument
Part 2. tipping bucket rain sensor
Instrumentforprecipitationobservation-Part 2. Tippingbucketrainfalsensor
Issued on. 2014-07-08
2015-01-19 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Table of Contents
Preface Ⅰ
1 Scope 1
2 Normative references 1
3 Terms and definitions
4 Structure and Composition 1
5 Requirement 2
6 Test Method 4
7 Inspection rules 6
8 Marking and instructions 7
9 packaging, transportation and storage 7
Foreword
GB/T 21978 "Precipitation observation instruments" is divided into seven sections.
--- Part 1. gauges;
--- Part 2. tipping bucket rain sensor;
--- Part 3. Siphon rain gauge;
--- Part 4. float rain gauge;
--- Part 5. rainfall display logger;
--- Part 6. Snowmelt snow meter;
--- Part 7. Optical snow meter.
This section GB/T 21978 Part 2.
This section drafted in accordance with GB/T 1.1-2009 given rules.
This Part replaces GB/T 11832-2002 "tipping bucket rain gauge", compared with the GB/T 11832-2002, the main changes as follows.
--- Delete the original recording standards and technical content display portion, while the standard name change to include GB/T 21978 "Precipitation Outlook
Measuring instrument "family of standards;
--- Repeatability requirement re provisions;
--- Increase measurement accuracy, repeatability of test methods;
--- Increased sampling requirements.
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 (SAC/TC199/SC1) centralized.
This section drafted by. MWR hydrological instruments and geotechnical engineering Instrument Quality Supervision and Testing Center, Nanjing Yangtze water conservancy Automation Technology
Art Development Corporation, China Institute of Water Resources and Hydropower, Beijing Meike Auto Technology Development Co., Ministry of Water Resources, Nanjing Auto Hydrological
The Institute, Ningbo Sunshine Auto Parts Co., Ltd. Ningbo Beilun Cup China Hydraulic Equipment Co., Ltd.
The main drafters of this section. Xu Haifeng, Ne Min Feng, Wu Yi, Li Wei, Dong Xiuying, cattle Rui-ping, SUN will, Wu Yuxiao.
This part of the standard replaces the previous editions are.
--- GB/T 11832-1989, GB/T 11832-2002.
Precipitation observation instrument
Part 2. tipping bucket rain sensor
1 Scope
This section GB/T 21978 specifies the requirements for tipping bucket rain sensor, test methods, inspection rules, marks and instructions for use,
Packaging, transportation, storage and so on.
This section applies to continuous observation of rainfall tipping bucket rain sensor (hereinafter referred to as sensors).
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 9359 Basic environmental testing instruments hydrological conditions and methods
GB/T 13264 percent nonconforming small batch count sampling procedures and sample forms
GB/T 18185-2000 hydrological instruments reliability technical requirements
GB/T 18522.3-2001 hydrologic instruments - Part 3. Basic performance and method
GB/T 18522.6-2007 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 50095 standard hydrological basic terminology and symbols
3 Terms and Definitions
GB/T 19677, GB/T 50095 and defined by the following terms and definitions apply to this document.
3.1
Wetting loss lossofwetness
Has entered the port before rain rain flows into the dump did not get trapped part measurement.
NOTE. moist loss generally occurs when the rains start.
3.2
Repeatability limit repeatabilitylimit
Under repeatability conditions, the difference between any two measurements of the same measured with 95% probability will not be exceeded limits.
4 structure and composition
Structure of the sensor is generally divided into rain bearing member and the metering member port. Rain bearing instruments through the mouth parts to collect rain, turn the metering member
Metering hopper, and physical output signal can be measured. Metering component layers to dump classification, can be divided into single dump double
And three dump dump form.
...
