JJG 587-2016 English PDF

US$369.00 · In stock
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JJG 587-2016: Float-type Tide Gauge
Status: Valid

JJG 587: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJG 587-2016	369	Add to Cart	3 days	Float-type Tide Gauge	Valid
JJG 587-1997	319	Add to Cart	3 days	Verification regulation of float-type tide gauge	Obsolete
JJG 587-1989	279	Add to Cart	3 days	(Working with a thermocouple vacuum gauge test procedures)	Obsolete

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Basic data

Standard ID: JJG 587-2016 (JJG587-2016)
Description (Translated English): Float-type Tide Gauge
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A52
Word Count Estimation: 16,156
Date of Issue: 2016-11-25
Date of Implementation: 2017-05-25
Older Standard (superseded by this standard): JJG 587-1997
Regulation (derived from): State Administration of Quality Supervision, Inspection and Quarantine Notice No.116 of 2016
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine

JJG 587-2016: Float-type Tide Gauge

---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.
Float-type Tide Gauge National Metrological Verification Regulation of the People's Republic of China Float tide instrument 2016-11-25 release 2017-05-25 implementation State Administration of Quality Supervision, Inspection and Quarantine issued Verification procedure of buoyant tide gauge Replacing JJG 587-1997 Responsible unit. National Ocean Special Measuring Instruments Metrology Technical Committee Drafting unit. National Ocean Standard Metrology Center This procedure is entrusted to the National Oceanic Metrology Apparatus Metrology Technical Committee to explain The drafters of this Code. Yu Jianqing (National Marine Standard Measurement Center) Yu Huili (National Ocean Standard Metrology Center) Jia Weiguang (National Marine Standard Metrology Center)

table of Contents

Introduction (II) 1 Scope (1) 2 References (1) 3 Terms and definitions (1) 3.1 Return error (1) 3.2 Stability (1) 3.3 Water tower (1) 4 Overview (1) 5 Measurement performance requirements (2) 5.1 Indication error (2) 5.2 Return error (2) 5.3 Stability (2) 6 General technical requirements (2) 6.1 Appearance (2) 6.2 Float watertightness (2) 7 Metering device control (2) 7.1 Test conditions (2) 7.2 Verification Project (3) 7.3 Verification method (3) 7.4 Processing of test result (6) 7.5 Test cycle (6) Appendix A Calculation of return error (7) Appendix B Verification Record Format (8) Appendix C Verification Certificate Inside Page Format (10) Appendix D Results of Notification Page Format (11)

Introduction

This procedure is based on GB/T 12763.2-2007 "Ocean Survey Specification Part 2. Marine Hydrological Observations" and GB/T 14914-2006 "seaside observation norms" on the technical indicators of tidal observation requirements, combined with the float tide (Water level gauge) of the status quo, the JJG 587-1997 version has been revised. Compared with JJG 587-1997, in addition to compilation Editorial changes, the main technical changes are as follows. Revised the requirements for the accuracy of the float treadmill to meet the different resolution of the float tide The test requirements of the instrument; --- the original "instrument resolution test" to "authentication threshold verification" to more in line with the terminology of the standard Claim; --- increase the "return error" and "stability" two test items, provides the measurement performance requirements and the corresponding The method of verification; --- increased the technical requirements of the measurement standard requirements; --- clear the test results of the treatment; --- clear the first test, follow-up verification and use of the inspection of the circumstances of the test items. The previous version of this procedure is released as follows. --- JJG 587-1997. Verification procedure of buoyant tide gauge

1 Scope

This procedure applies to the first test of the float test instrument (hereinafter referred to as the instrument), the subsequent verification and use of the inspection check. Also applies to float water level gauge.

2 reference file

This procedure refers to the following documents. JJG 741 standard steel tape For dated references, only the dated edition applies to this rule; references that are not dated , The latest version (including all amendments) applies to this procedure.

3 terms and definitions

3.1 return error hysterisiserror The absolute value of the change value of the indication of the positive and reverse stroke of the instrument at the same test point. Stability The test of the test points are positive and anti-stroke test and the last period of the same certificate on the same test value of the change The absolute value. 3.3 test water tower watertowerforverification Can control the water level changes with time, to meet the requirements of the float trench or float water level gauge verification device.

4 Overview

The instrument is shown in Figure 1, mainly by the float, heavy hammer, sheave, water level encoder, data acquisition records or display equipment Set up. The instrument is a measure of tidal (water level) changes over time, the use of surface float and water level encoder phase Should be installed in the water level changes, the water level parameters to record or display. Figure 1 Schematic diagram of the instrument ......

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