JJG 2061-2015 English PDF

US$229.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
JJG 2061-2015: Verification Scheme of Measuring Instruments for Primary Chemical Purity
Status: Valid

JJG 2061: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJG 2061-2015	229	Add to Cart	3 days	Verification Scheme of Measuring Instruments for Primary Chemical Purity	Valid
JJG 2061-1990	199	Add to Cart	2 days	Verification Scheme of Primary Chemical Purity	Obsolete

Similar standards

JJF 1424   JJF 1441   JJF 1363   JJF 2061   JJF 1907   JJF 1891   

Basic data

Standard ID: JJG 2061-2015 (JJG2061-2015)
Description (Translated English): Verification Scheme of Measuring Instruments for Primary Chemical Purity
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A61
Classification of International Standard: 17.020
Word Count Estimation: 9,943
Date of Issue: 2015-02-06
Date of Implementation: 2015-08-09
Older Standard (superseded by this standard): JJG 2061-1990
Regulation (derived from): State Quality Inspection Administration Announcement 2015 No. 26
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine
Summary: This Standard applies to the money transfer reference reagent purity of measuring instruments, the provisions of the country by means of a standard reference material purity reagents, titration analysis of national secondary reference material and titration devices, after analysis by the measurement reference measurement standards to all types of titration reagent transfer reagent purity value methods, procedures, and expanded uncertainty value transfer time. In carrying out the calibration can also be used as a basis for traceability.

JJG 2061-2015: Verification Scheme of Measuring Instruments for Primary Chemical Purity

---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.
Verification Scheme of Measuring Instruments for Primary Chemical Purity People's Republic of China National Metrological Verification System tables Reference reagent purity measuring instruments Issued on. 2015-02-09 2015-05-09 implementation The State Administration of Quality Supervision, Inspection and Quarantine released Reference reagent purity measuring instruments Verification System Replacing JJG 2061-1990 Focal point. the National Technical Committee stoichiometric physical Drafting units. China Institute of Metrology The Verification System commissioned the National Technical Committee of the stoichiometric physics responsible for the interpretation The Verification System drafters. FEI brother (China Institute of Metrology) Wu Bing (China Institute of Metrology)

table of Contents

Introduction Ⅱ 1 Scope 1 1 2 baseline measurement 2.1 reference reagent purity national benchmark application 1 2.2 reference reagent purity national benchmark Composition 1 2.3 reference reagent purity national benchmarks relative expanded uncertainty 1 2.4 reference reagent purity national benchmarks Traceability 1 3 1 measurement standards 3.1 National reference reagent purity primary standard substance 1 3.2 national secondary standard titration analysis purity material 2 Working measuring instruments 2 4 5 reference reagent purity Measuring Instruments System Tables Diagram 2

Introduction

The verification system in accordance with JJF1104-2003 "National Metrological Verification System write rules" be written. versus JJG 2061-1990 compared to, in addition to editorial changes outside the main technical changes are as follows. --- Increased contents Introduction; --- Increasing the national benchmark reference reagent purity constituent equipment technical performance indicators; --- Modify the relative expanded uncertainty of the national baseline reference reagent purity, a national reference reagent purity standard Reference material and national levels Titration analysis standard material purity expanded uncertainty, as well as the standard titration analysis Relative expanded uncertainty of the solution. The previous version of the verification system for the release of the case. --- JJG 2061-1990. Reference reagent purity measuring instruments Verification System

1 Scope

The verification system applicable to the reference value transfer reagent purity of measuring instruments, the provisions of the country by means of a base Quasi reagent purity standard substance, the national secondary standard materials and titration titration analysis device by standard metered baseline measurement Quasi money transfer reagent purity reagent approach to all types of titration analysis, and extension value transfer when uncertainty Given degrees. In carrying out the calibration can also be used as a basis for traceability.

2 baseline measurement

2.1 Application reference reagent purity national benchmark National benchmark reference reagent purity for purity reproduction reference reagents. By mass, time, current and other basic physical Reference measurements to determine the purity of the reagents. National benchmark reproducible reference reagent purity in the range of ~ 99.950% 100.050%. 2.2 reference reagent purity national benchmark composition Reference reagent purity national benchmarks by the high-precision timing constant current source, precision analytical balance, the standard temperature of the battery pack, standard Quasi-resistance, indicating the end of the electrolytic cell and system components. Exact timing of the constant current source. current stability better than 5 × 10-6/30min DC constant current power supply, having 1.0186 × 100mA, 1.0186 × 10mA, 1.0186 × 1mA 1.0186 × 0.1mA four kinds of output and Flow, the current value is determined by the compensation method; the minimum timing resolution 0.1ms, current and timing synchronization is less than the difference 0.1ms. Precision Analytical Balance. Range 5.1g, minimum resolution 0.1μg. Temperature standard battery pack. Range 1V, annual variation of less than 2μV. Standard resistance. 10Ω, 100Ω, 1kΩ, 10kΩ, the relative uncertainty of 1.5 × 10-6 (k = 3). Precision heated fuel tank. level work area temperature difference 0.002 ℃, temperature fluctuations better than 0.001 ℃/30min. End indicating system. two types of devices and end the current law indicating means potential method (pH method) end indication. Potential method (pH method) the end of the pointing device. 0.001 acidity (mV, pH) dollars. Current law endpoint indicating device. DC radiation galvanometer, resistance < 100Ω, critical external resistance < 1000Ω, points Value of < 3 × 10-9A/div. 2.3 reference reagent purity national benchmarks relative expanded uncertainty Relative expanded uncertainty of the national benchmark reference reagent purity Urel = 0.004% (k = 2). 2.4 reference reagent purity national benchmark Traceability National benchmark reference reagent purity magnitude respectively, by the time (t), mass (m), voltage (V), resistance (R) National benchmarks handed down, with the corresponding high precision timing reference means respectively constant current source (t), precision analytical balance (M), standard battery (V), standard resistance (R) assignment. National benchmark reference reagent purity can be at the national level Reference reagent purity standard substance assignment, conduct money transfer using precision constant current coulometric titration.

3 measurement standard

3.1 National reference reagent purity primary standard substance ......

Image     

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of JJG 2061-2015_English be delivered?

Answer: Upon your order, we will start to translate JJG 2061-2015_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 2061-2015_English with my colleagues?

Answer: Yes. The purchased PDF of JJG 2061-2015_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 2061-2015?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version JJG 2061-2015 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.