GB/T 21978.2-2014 English PDF

US$259.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 21978.2-2014: Instrument for precipitation observation -- Part 2: Tipping bucket rainfall sensor
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 21978.2-2014	259	Add to Cart	3 days	Instrument for precipitation observation -- Part 2: Tipping bucket rainfall sensor	Valid

Similar standards

GB/T 21978.5   GB/T 21978.6   GB/T 21997.1   

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: 11,179
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Older Standard (superseded by this standard): GB/T 11832-2002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

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. ......

Image     

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 21978.2-2014_English be delivered?

Answer: Upon your order, we will start to translate GB/T 21978.2-2014_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 21978.2-2014_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 21978.2-2014_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.