|
US$599.00 · In stock
Delivery: <= 5 days. True-PDF full-copy in English will be manually translated and delivered via email.
JJF 1700-2018: Program of Pattern Evaluation of Turbidimeters
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| JJF 1700-2018 | English | 599 |
Add to Cart
|
5 days [Need to translate]
|
Program of Pattern Evaluation of Turbidimeters
| Valid |
JJF 1700-2018
|
PDF similar to JJF 1700-2018
Basic data | Standard ID | JJF 1700-2018 (JJF1700-2018) | | Description (Translated English) | Program of Pattern Evaluation of Turbidimeters | | Sector / Industry | Metrology & Measurement Industry Standard | | Classification of Chinese Standard | A61 | | Word Count Estimation | 26,210 | | Date of Issue | 2018-02-27 | | Date of Implementation | 2018-05-27 | | Regulation (derived from) | AQSIQ Announcement No. 26 of 2018 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine | JJF 1700-2018: Program of Pattern Evaluation of Turbidimeters---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.
(Turbidity meter type evaluation outline)
National Metrology Technical Specification of the People's Republic
Turbidity type evaluation outline
Published on.2018-02-27
2018-05-27 implementation
The General Administration of Quality Supervision, Inspection and Quarantine issued
Turbidity type evaluation outline
Turbidimeters
Focal Point. National Environmental Chemometrics Technical Committee
Main drafting unit. China Institute of Metrology
China Guangzhou Analytical Testing Center
Shanghai Institute of Metrology and Testing Technology
Participated in drafting unit. China Testing Technology Research Institute
Qingdao Institute of Metrology and Testing, Shandong Province
Jiangsu Environmental Monitoring Instrument Measurement Center
This Code entrusts the National Environmental Chemometrics Technical Committee to explain
The main drafters of this specification.
Zhang Wenge (China Institute of Metrology)
Luo Jun (China Guangzhou Analytical Testing Center)
Li Zhisheng (Shanghai Institute of Metrology and Testing Technology)
Liu Junjie (China Institute of Metrology)
Participate in the drafters.
Yuan Li (China Testing Technology Research Institute)
Xia Chun (Qingdao Metrology and Testing Institute, Shandong Province)
Wang Shaoli (Jiangsu Environmental Monitoring Instrument Metrology Center)
table of Contents
Introduction (II)
1 Scope (1)
2 References (1)
3 Overview (1)
4 Legal management requirements (1)
4.1 Unit of measurement (1)
4.2 signs (2)
5 Measurement requirements (2)
5.1 indication error (2)
5.2 Repeatability (2)
5.3 Zero drift (2)
5.4 indication stability (2)
6 General technical requirements (2)
6.1 Appearance and Structure (2)
6.2 Functional requirements (2)
6.3 Environmental adaptability (2)
7 type evaluation item list (3)
8 Provide the number of prototypes and how to use the prototype (3)
8.1 Number of prototypes provided (3)
8.2 How to use the prototype (4)
9 Test methods and conditions of the test items, as well as data processing and qualification judgment (4)
9.1 Appearance and Structure (4)
9.2 Functional requirements (4)
9.3 indication error (4)
9.4 Repeatability (5)
9.5 zero drift (6)
9.6 indication stability (7)
9.7 Adaptability at ambient temperature of 5 ° C (7)
9.8 Adaptability under ambient temperature of 35 °C (8)
9.9 Constant damp heat test (8)
9.10 Power Environment Adaptability (9)
10 Measuring instruments and equipment used in the test items (10)
Judgment of type 11 evaluation results (10)
12 type evaluation record format (10)
Appendix A Turbidity Meter Type Evaluation Test Record Format (11)
Introduction
This type of evaluation outline is based on JJF 1015-2014 "General Specification for Type Evaluation of Measuring Instruments", JJF 1016-
2014 Preparation of Guidelines for the Preparation of Types of Measuring Instruments for Evaluation.
The technical indicators of this type evaluation outline refer to JJG880-2006 "Turbidimeter", GB/T 11606-2007
Technical regulations and standards such as "Analytical Instrument Environmental Test Method" and ISO 7027 "Water Quality Turbidity Measurement Method".
This type of evaluation outline is the first release.
Turbidity type evaluation outline
1 Scope
This type of evaluation outline is applicable to Formazine (formazan) turbidity with a classification code of 46240000.
Unit display and display results can be converted to Formazine turbidity unit type of desktop, portable photoelectric turbidity meter
Evaluation.
2 reference files
This specification refers to the following documents.
JJG880-2006 Turbidity Meter
GB/T 11606-2007 Analytical instrument environmental test method
ISO 7027 water quality turbidity determination method
For dated references, only dated versions apply to this specification; undated quotations
The latest version (including all amendments) applies to this specification.
3 Overview
A turbidimeter is a measure of the scattering or decay of light produced by insoluble particulate matter suspended in a transparent liquid.
Degree, and an instrument for quantitatively characterizing the content of these suspended particulate matter.
The photoelectric turbidity meter (hereinafter referred to as the instrument) mainly consists of a light source, a collimating unit of light, a sample measuring cell, a measuring chamber,
The photodetection element and the display unit are partially composed. According to its measurement principle or method, it can be divided into light transmission and light scattering (straight
Angle scattering, forward scattering and surface scattering), scattering transmittance and integrating sphere measurement. Turbidity meter
Key components and materials are shown in Table 1.
Table 1 Key Parts and Materials Table
Serial number name main performance indicator remarks
1 The light source is often a visible light source according to the design needs
2 sample measuring pool --- according to design needs
3 Photoelectric detection components --- according to design needs
4 Legal management requirements
4.1 Unit of measurement
Adopting the Formazine turbidity standard specified in the international standard ISO 7027 issued by the International Organization for Standardization, ie
The "Unit" used in this standard is used as the unit of measurement of turbidity. According to different measurement methods, there are mainly the following
Common turbidity units determined by the Formazine standard solution.
FAU (FormazineAttenuatedUnit)---Formazine light attenuation measurement unit;
Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of JJF 1700-2018_English be delivered?Answer: Upon your order, we will start to translate JJF 1700-2018_English as soon as possible, and keep you informed of the progress. The lead time is typically 3 ~ 5 working days. The lengthier the document the longer the lead time. Question 2: Can I share the purchased PDF of JJF 1700-2018_English with my colleagues?Answer: Yes. The purchased PDF of JJF 1700-2018_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+ countriesQuestion 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 [email protected]. 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.
|