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JJG 628-2019 English PDF

Q: How long will the true-PDF of English version of JJG 628-2019 be delivered?

Upon your order, we will start to translate JJG 628-2019_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.

Q: Can I share the purchased PDF of JJG 628-2019_English with my colleagues?

Yes. The purchased PDF of JJG 628-2019_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Q: Does the price include tax/VAT?

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). Avoidance of Double Taxation Agreements (DTAs) between Singapore and 100+ Countries: https://www.iras.gov.sg/taxes/international-tax

Q: Do you accept my currency other than USD?

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Q: Should I purchase the latest version JJG 628-2019?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version JJG 628-2019 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.

US$329.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
JJG 628-2019: Model SLC9 Direct Reading Sea Current Meters
Status: Valid

JJG 628: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJG 628-2019	329	Add to Cart	3 days	Model SLC9 Direct Reading Sea Current Meters	Valid
JJG 628-1989	319	Add to Cart	3 days	Verification Regulation of Direct Reading Current Meter Model SLC9	Obsolete

Similar standards

JJG 631 JJG 635 JJG 695 JJG 629

Basic data

Standard ID: JJG 628-2019 (JJG628-2019)
Description (Translated English): Model SLC9 Direct Reading Sea Current Meters
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A61
Classification of International Standard: 17.120
Word Count Estimation: 14,113
Date of Issue: 2019
Date of Implementation: 2020-03-27
Issuing agency(ies): State Administration for Market Regulation

JJG 628-2019: Model SLC9 Direct Reading Sea Current Meters

---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.
Model SLC9 Direct Reading Sea Current Meters National Measurement Verification Regulations of the People's Republic of China SLC9 direct reading current meter 2019-09-27 release 2020-03-27 Implementation Issued by the State Administration of Market Supervision and Administration Verification Regulation of SLC9 Direct Reading Current Meter CurrentMeters Replace JJG 628-1989 Focal point: National Technical Committee for Measuring Special Marine Measuring Instruments Main drafting unit: Beihai Standard Metrology Center of State Oceanic Administration Participating in the drafting unit: East China Sea Standard Metrology Center of State Oceanic Administration South China Sea Standard Metrology Center of State Oceanic Administration This Regulation is entrusted to the National Technical Committee for Measuring Special Marine Instruments for interpretation The main drafters of this regulation: Qin Ping (North Sea Standard Metrology Center of State Oceanic Administration) Zhang Tao (North Sea Standard Metrology Center of State Oceanic Administration) Li Mingjun (North Sea Standard Metrology Center of State Oceanic Administration) Participating drafters: Wu Yichuan (National Oceanic Administration East China Sea Standard Metrology Center) Feng Bing (Donghai Standard Metrology Center, State Oceanic Administration) Julong (South China Sea Standard Metrology Center, State Oceanic Administration) Li Qingchao (South China Sea Standard Metrology Center, State Oceanic Administration)

Introduction (Ⅱ) 1 Scope (1) 2 References (1) 3 Terms and units of measurement (1) 4 Overview (1) 5 Measurement performance requirements (2) 6 General technical requirements (2) 6:1 Appearance (2) 6:2 Data terminal (2) 7 Control of measuring instruments (2) 7:1 Verification conditions (2) 7:2 Verification items (3) 7:3 Verification method (3) 7:4 Processing of verification results (5) 7:5 Verification period (5) Appendix A Calculation of vehicle speed change rate (6) Appendix B SLC9 Direct Reading Current Meter Verification Record Format (Reference) (7) Appendix C Format of the inner page of the certificate of verification/notification of verification results (8)

Introduction

JJG 628-2019 "SLC9 type direct reading current meter" based on JJF1001-2011 "General Measurement Terms and Definitions "Righteousness", JJF1002-2010 "Rules for the Compilation of National Metrological Verification Regulations" The current meter was revised: Compared with JJG 628-1989, in addition to editorial changes, the main technical content has the following changes: --- Added 3 items of "Scope", "Referenced Documents" and "Terms and Units of Measure"; --- Deleted the technical indicators of SLC9-1 current meter and the corresponding in-depth verification items; --- Increased the determination method of positive and negative travel difference; --- Improved the technical indicators and description of the verification tank; --- Optimized flow rate verification point; --- Deleted the retention period of the original data of the verification record form; --- Added the information and format of the internal pages of the verification certificate and verification result notice: The release of previous versions of this regulation: --- JJG 628-1989: Verification Regulation of SLC9 Direct Reading Current Meter

1 Scope

This regulation is applicable to the first verification, subsequent verification and subsequent verification of SLC9 direct reading current meter (hereinafter referred to as current meter) Check in use:

2 Reference documents

This regulation refers to the following documents: GB/T 21699-2008 Verification/Calibration Method of Rotor Flowmeter in Linear Open Groove For dated references, only the dated versions are applicable to this Regulation; for those without dates The latest version (including all amendments) is applicable to this regulation:

3 Terms and units of measurement

The unit of measurement of the velocity of the current meter is meters per second, the symbol is m/s; the flow direction is degrees, and the symbol is °:

4 Overview

The current meter is a propeller-type current meter, which is divided into two parts: a water receiver and an underwater detector: The cable transmits signals, which can measure the horizontal velocity and direction of the water flow at the depth: The structure of the current meter is shown in Figure 1: Figure 1 Structure chart of current meter 1-propeller; 2-socket; 3-hanger; 4-cable; 5-signal converter; 6-data terminal; 7-tail; 8-flow direction sensor; 9-O seal ring; 10-body; 11-flow rate sensor; 12-flow rate transmitter; 13-shroud ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of JJG 628-2019_English be delivered?

Answer: Upon your order, we will start to translate JJG 628-2019_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 JJG 628-2019_English with my colleagues?

Answer: Yes. The purchased PDF of JJG 628-2019_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.

Question 5: Should I purchase the latest version JJG 628-2019?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version JJG 628-2019 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.