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JJF 1764-2019 English PDF

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US$839.00 · In stock
Delivery: <= 6 days. True-PDF full-copy in English will be manually translated and delivered via email.
JJF 1764-2019: Program of Pattern Evaluation of Hydrogen Sulfide Gas Detectors for Mining
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJF 1764-2019	839	Add to Cart	6 days	Program of Pattern Evaluation of Hydrogen Sulfide Gas Detectors for Mining	Valid

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Basic data

Standard ID: JJF 1764-2019 (JJF1764-2019)
Description (Translated English): Program of Pattern Evaluation of Hydrogen Sulfide Gas Detectors for Mining
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A61
Classification of International Standard: 17.020
Word Count Estimation: 39,363
Date of Issue: 2019
Date of Implementation: 2019-12-27
Issuing agency(ies): State Administration for Market Regulation

JJF 1764-2019: Program of Pattern Evaluation of Hydrogen Sulfide Gas Detectors for Mining

---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.
(Outline of Type Evaluation of Mine Hydrogen Sulfide Gas Detector) National Measurement Technical Specification of the People's Republic of China Mine hydrogen sulfide gas detector Type evaluation outline 2019-09-27 release 2019-12-27 Implementation Issued by the State Administration of Market Supervision and Administration Mine hydrogen sulfide gas detector Type evaluation outline Focal point. National Technical Committee for Environmental Chemometrics Main drafting unit. National Mine Safety Measurement Station China Testing Technology Research Institute National Coal Mine Safety Measuring Instrument Product Quality Supervision and Inspection Center Participated in the drafting unit. China Coal Science and Industry Group Chongqing Research Institute Co., Ltd. National Coal Mine Dust Ventilation Safety Product Quality Supervision and Inspection Center Anbiao National Mining Products Safety Sign Center Co., Ltd. This specification entrusts the National Environmental Chemometrics Technical Committee to interpret The main drafters of this specification. Cao Libo (National Mine Safety Measurement Station) Qing Liu (China Institute of Testing Technology) Li Mei (National Coal Mine Safety Measuring Instrument Product Quality Supervision and Inspection Center) Participating drafters. Fu Gang (National Mine Safety Measurement Station) Chang Lin (Anbiao National Mining Products Safety Sign Center Co., Ltd.) Fu Jiantao (China Coal Technology Industry Group Chongqing Research Institute Co., Ltd.) Hu Zhifang (National Coal Mine Dust Ventilation Safety Product Quality Supervision and Inspection Center)

Introduction (Ⅱ) 1 Scope (1) 2 References (1) 3 Overview (1) 4 Legal management requirements (2) 4.1 Unit of measurement (2) 4.2 Marks and logos (2) 5 Measurement requirements (2) 5.1 Indication error (2) 5.2 Repeatability (2) 5.3 Response time (2) 5.4 Drift (2) 5.5 Signal transmission error (2) 6 General technical requirements (2) 6.1 Appearance and structure (2) 6.2 Power-on inspection (2) 6.3 Function check (3) 6.4 Adaptability of power supply voltage (3) 6.5 Insulation resistance (3) 6.6 Dielectric strength (3) 6.7 Climate and environment adaptability (3) 6.8 Work stability (3) 6.9 Adaptability to mechanical environment (3) 6.10 Shell protection performance (4) 7 Type evaluation items (4) 8 Provide the number of prototypes and how to use them (5) 8.1 Number of prototypes provided (5) 8.2 How to use the prototype (5) 9 Test methods and conditions of test items, data processing and qualification criteria (5) 9.1 Measurement requirements (5) 9.2 General technical requirements (9) 10 Table of measuring instruments and equipment used in the test items (14) 11 Original records of type evaluation (15) Appendix A Original Record Format of Type Evaluation of Mine Hydrogen Sulfide Detector (16) Appendix B Technical Requirements of Simulation Circuit (33)

Introduction

This type evaluation outline is based on JJF 1015 "General Specification for Type Evaluation of Measuring Instruments" and JJF 1016 "Measuring Instruments" The "Guidelines for Compiling the Type Evaluation Outline" are compiled as basic specifications. The measurement performance of this type evaluation outline refers to JJG1161-2019 "Mine Hydrogen Sulfide Gas Detector" and MT1084-2008 "Hydrogen Sulfide Detection Alarm for Coal Mine". This type evaluation outline is released for the first time. Mine hydrogen sulfide gas detector Type evaluation outline

1 Scope

This type of evaluation outline is applicable to the detection of hydrogen sulfide gas used in mines with the classification code of measuring instruments of 46381000 Type evaluation of the tester.

2 Reference documents

This specification refers to the following documents. JJG1161-2019 Mine hydrogen sulfide gas detector GB/T 2423.1-2008 Environmental testing for electrical and electronic products Part 1 Test methods Test A. Low temperature GB/T 2423.2-2008 Environmental testing for electrical and electronic products Part 2 Test method Test B. high temperature GB/T 2423.4-2008 Environmental testing for electrical and electronic products Part 4 Test methods Test Db. Damp heat (12h 12h cycle) GB/T 2423.7-2018 Environmental Test Part 2.Test Method Test Ec. Caused by Rough Operation The impact (mainly used for equipment type samples) GB/T 4208-2017 enclosure protection level (IP code) For dated reference documents, only the dated version applies to this outline; for those without date references The latest version (including all amendments) is applicable to this outline.

3 Overview

Mine hydrogen sulfide gas detector (hereinafter referred to as detector) is mainly composed of detection unit (gas chamber, sensitive components, etc.), The signal processing transmission unit, display unit, etc., convert the hydrogen sulfide gas concentration into an electrical signal through the sensitive element, Then through the signal processing transmission unit, the display unit finally displays the hydrogen sulfide concentration value. The detector is divided into diffusion type and suction type according to the sampling method; it is divided into portable and fixed type according to the usage method. Fixed The detector has an electric signal output function. According to the characteristics of the detector itself, the key components and materials should be clarified, as shown in Table 1. Table 1 Key parts and materials table No. Name Main Performance Index Remarks

1 Shell

The size, flame retardant and other indicators can be designed by the applicant unit according to the design Need to fill in Steel, engineering plastics, etc.

2 Sensitive components

Indicators such as accuracy and response time can be determined by the applicant Design needs to be filled

3 Battery

Indicators such as capacity and number of sections can be applied by the applicant Fill in according to design needs Lithium manganate, nickel hydrogen, etc. (For portable) ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of JJF 1764-2019_English be delivered?

Answer: Upon your order, we will start to translate JJF 1764-2019_English as soon as possible, and keep you informed of the progress. The lead time is typically 4 ~ 6 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of JJF 1764-2019_English with my colleagues?

Answer: Yes. The purchased PDF of JJF 1764-2019_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.