GB/T 27957-2011 English PDF

US$169.00 · In stock
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GB/T 27957-2011: Grade of hail
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 27957-2011	169	Add to Cart	3 days	Grade of hail	Valid

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Basic data

Standard ID: GB/T 27957-2011 (GB/T27957-2011)
Description (Translated English): Grade of hail
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: A47
Classification of International Standard: 07.060
Word Count Estimation: 7,793
Date of Issue: 2011-12-30
Date of Implementation: 2012-03-01
Regulation (derived from): Announcement of Newly Approved National Standards No. 23 of 2011
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 level of hail. This standard applies to hail monitoring, forecasting early warning.

GB/T 27957-2011: Grade of hail

---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.
Grade of hail ICS 07.060 A47 National Standards of People's Republic of China Hail Ratings Issued on. 2011-12-30 2012-03-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. The standard proposed by the China Meteorological Administration. This standard by the national meteorological disaster prevention and mitigation Standardization Technical Committee (SAC/TC345) centralized. This standard was drafted. National Meteorological Center (Central Station). The main drafters of this standard. Gui-Ming Yang Zong Zhiping, Lin Jian.

Introduction

Hail is one of the China's major weather disasters. Hail has a short duration, the scope of the centralized and destructive characteristics. Hail to the agriculture, livestock and transportation industries bring disaster. Development of national uniform grading standards help standardize hail hail forecasting and warning services, prevention and mitigation of hail damage. Hail Ratings

1 Scope

This standard specifies the level of hail. This standard applies to hail the monitoring, forecasting and early warning.

2 Terms and definitions

The following terms and definitions apply to this document. 2.1 Hail hail Hard spherical, conical or irregular precipitation of solid matter. 2.2 Hail diameter diameterofhail According to the maximum diameter of the surface weather observing practices hail measured in millimeters (mm) as a unit, an integer. 2.3 According to the diameter hail classifying the divided. Level 3 Hail 3.1 Principles division Divided according to diameter hail. 3.2 Hail Ratings D for diameter hail, hail grades in Table 1. Table 1 Hail Level Level hail diameter Small Hail D < 5mm The hail 5mm≤D < 20mm Large hail 20mm≤D < 50mm King Hail D≥50mm ......

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