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JJG 761-2016 English PDF

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Q: Should I purchase the latest version JJG 761-2016?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version JJG 761-2016 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$489.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email.
JJG 761-2016: Electrode Salinometer
Status: Valid

JJG 761: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJG 761-2016	489	Add to Cart	4 days	Electrode Salinometer	Valid
JJG 761-1991	399	Add to Cart	3 days	Verification Regulation of Electrode Type Salinometer	Obsolete

Similar standards

GB/T 3222.1 JJG 188 JJF 1396 JJG 852 JJG 377 JJG 393

Basic data

Standard ID: JJG 761-2016 (JJG761-2016)
Description (Translated English): Electrode Salinometer
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A58
Classification of International Standard: 17.220
Word Count Estimation: 21,227
Date of Issue: 2016-06-27
Date of Implementation: 2016-12-27
Older Standard (superseded by this standard): JJG 761-1991
Regulation (derived from): Notice of the General Administration of Quality Supervision, Inspection and Quarantine of the People Republic of China 2016 No.16
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine
Summary: This procedure applies to the first test of an electrode salinity meter (hereinafter referred to as "salinity meter"), subsequent inspection and inspection.

JJG 761-2016: Electrode Salinometer

---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.
Electrode Salinometer National Metrological Verification Regulation of the People's Republic of China Electrode salinity meter 2016-06-27 released 2016-12-27 implementation State Administration of Quality Supervision, Inspection and Quarantine issued Electrode Salinity Meter Verification Regulation Replacing JJG 761-1991 Responsible unit. National Ocean Special Measuring Instruments Metrology Technical Committee The main drafting unit. National Ocean Standard Metrology Center Participated in the drafting unit. State Oceanic Administration Beihai Standard Metrology Center This procedure is entrusted to the National Oceanic Metrology Apparatus Metrology Technical Committee to explain The main drafters of this procedure. Soleley (National Marine Standard Metrology Center) Kang Ying (National Marine Standard Metrology Center) Wang Jun (National Marine Standard Metrology Center) Participate in the drafters. Qin Ping (State Oceanic Administration Beihai Standard Metrology Center) Li Mingjun (State Oceanic Administration North Sea Standard Metrology Center) Li Huiqing (State Oceanic Administration North Sea Standard Metrology Center)

Introduction (II) 1 Scope (1) 2 References (1) 3 Terms and definitions (1) 3.1 Salinity (1) 3.2 1978 Practical salt standard (1) 3.3 Calibration (1) 4 Overview (1) 5 Measurement performance requirements (2) 5.1 Salinity indication error (2) 5.2 Salinity measurement Repeatability (2) 6 General technical requirements (2) 7 Metering device control (2) 7.1 Test conditions (2) 7.2 Verification Project (2) 7.3 Verification method (3) 7.4 Processing of test result (4) 7.5 Test cycle (4) Appendix A Salinity Meter Verification Record Reference Format (5) APPENDIX B QUESTION CERTIFICATE/QUALITY RESULTS The information on the information page (12) Appendix C Weight dilution step (14) Appendix D Calculation formula for salinity (16)

Introduction

This procedure adopts the UNESCO Scientific and Technical Report No. 36 (1981) (UNESCO No.36) of the 1978 practical salt. Compared with the JJG 761-1991 version, this procedure in addition to editorial changes, the relevant The technical changes are as follows. --- modify the description of the instrument measurement principle and structure (see 4); --- delete panel diagram; --- increase the working structure (see Figure 1); --- modify the appearance inspection requirements (see 6); --- remove the instrument resolution test; - part of the method of modifying the salinity indication error (see 7.3.2); --- modify the verification record format (see Appendix A); --- to amend the certificate/certificate results page information and format (see Appendix B); - modify the weight dilution step (see Appendix C); - Increase the salinity calculation formula (see Appendix D). The previous version of this procedure is released as follows. --- JJG 761-1991. Electrode Salinity Meter Verification Regulation

1 Scope

This procedure applies to the first test of an electrode salinity meter (hereinafter referred to as "salinity meter"), subsequent verification and use Check in.

2 reference file

This procedure refers to the following documents. UNESCO Scientific Report No. 36 (1981) (UNESCONO.36) 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 salinity sailinity Characterize how much salt is dissolved in seawater. Note. salinity has absolute salinity and practical salinity points. Unless otherwise specified, salinity generally refers to the practical salinity, that is, the practical salt of 1978 Standard defined salinity. 3.2 1978 practical salt standard practicalsalinityscale1978 (PSS78) The practical salinity of seawater samples is the conductivity of seawater samples at a standard atmospheric pressure at a temperature of 15 ° C With the same temperature and pressure, the mass ratio of 32.4356 × 10-3 potassium chloride standard solution of the ratio of conductivity K15 To determine. When K15 is exactly equal to 1, the practical salinity value is exactly equal to 35.000. 3.3 Calibration The use of sea water salinity standard substances on the salinity of a specific salinity adjustment or correction.

4 Overview

The salinity meter is a seawater salinity measuring instrument used in land, survey ship and offshore platform laboratories, Conductivity cell, water bath, measuring circuit and digital display and other components, the working structure shown in Figure 1. Figure 1 Salinity meter working structure The salinity meter uses the conductivity cell design principle, by measuring the measured water samples and sea water salinity standard material conductivity ratio Value, calculated by the measured water samples salinity value. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of JJG 761-2016_English be delivered?

Answer: Upon your order, we will start to translate JJG 761-2016_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of JJG 761-2016_English with my colleagues?

Answer: Yes. The purchased PDF of JJG 761-2016_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 761-2016?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version JJG 761-2016 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.