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JJF 1642-2017 English PDF

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US$1519.00 · In stock
Delivery: <= 9 days. True-PDF full-copy in English will be manually translated and delivered via email.
JJF 1642-2017: Program of Pattern Evaluation of Personal Sound Exposure Meters
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJF 1642-2017	1519	Add to Cart	9 days	Program of Pattern Evaluation of Personal Sound Exposure Meters	Valid

Similar standards

JJF 1033 JJF 1050 JJF 1030

Basic data

Standard ID: JJF 1642-2017 (JJF1642-2017)
Description (Translated English): Program of Pattern Evaluation of Personal Sound Exposure Meters
Sector / Industry: Metrology & Measurement Industry Standard
Word Count Estimation: 66,676
Date of Issue: 2017-09-26
Date of Implementation: 2017-12-26
Regulation (derived from): General Administration of State Quality Inspection Announcement 2017 No. 78
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine

JJF 1642-2017: Program of Pattern Evaluation of Personal Sound Exposure 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.
(Personal sound exposure type evaluation outline) People's Republic of China National Measurement Specifications Personal sound exposure meter type evaluation outline Program of Pattern Evaluation of Personal Sound Exception Meters 2017-09-26 Posted 2017-12-26 Implementation General Administration of Quality Supervision, Inspection and Quarantine released Personal sound exposure meter type evaluation outline Program of Pattern Evaluation The focal point. National Acoustic Measurement Technical Committee The main drafting unit. Hengyang Hengyi Electric Co., Ltd. Shenzhen Institute of Metrology and Quality Inspection Participate in the drafting unit. Shaanxi Normal University Institute of Applied Acoustics China Institute of Metrology This code is commissioned by the National Acoustic Measurement Technical Committee responsible for the interpretation The main drafters of this specification. Liu Xiang Heng (Hengyang Heng Yi Electric Co., Ltd.) Zhang Guoqing (Shenzhen Measurement Quality Inspection Institute) Luo Peng (Hengyang Heng Yi Electric Co., Ltd.) Participate in the drafters. Wu Shengju (Institute of Applied Acoustics, Shaanxi Normal University) He Longbiao (China Institute of Metrology) Luo Wen (Shenzhen Measurement Quality Inspection Institute) Yan Ping (Hengyang Heng Yi Electric Co., Ltd.)

Introduction (Ⅲ) 1 Scope (1) 2 References (1) 3 Terms and definitions (1) 3.1 Sound exposure (1) 3.2 Equivalent continuous A-weighted sound level (2) 3.3 sound level range (2) 3.4 Sound exposure range (2) 3.5 Reference Direction (2) 3.6 Reference frequency (2) 3.7 Reference sound pressure level (2) 3.8 reference integration time (3) 3.9 Reference sound exposure (3) 3.10 reference position (3) 4 Overview (3) 4.1 Principles and Applications (3) 4.2 Performance Level (3) 4.3 Key parts and materials (4) 5 Legal Management Requirements (4) 5.1 unit of measure (4) 5.2 External structure (4) 5.3 Marks (4) 6 measurement requirements (4) 6.1 Absolute acoustic sensitivity (4) 6.2 Frequency Weighting (5) 6.3 Linear response to steady-state signals (6) 6.4 Response to short continuous signals (6) 6.5 Response to unipolar pulses (6) 6.6 Self-locking overload indicator (7) 7 General technical requirements (7) 7.1 Appearance and Structure (7) 7.2 Functional Requirements (7) 7.3 Environmental Adaptability (7) 8 type evaluation item list (9) 9 to provide the number of prototypes and the use of the prototype (10) 9.1 provide the number of prototypes (10) 9.2 The use of prototypes (11) 10 Test methods, conditions, data processing and acceptance criteria (11) 10.1 General requirements (11) 10.2 Appearance and Structure (13) 10.3 Functional Requirements (13) 10.4 Absolute acoustic sensitivity (13) 10.5 Frequency Weighting (15) 10.6 Response to Steady-State Signals (16) 10.7 Response to short continuous signals (19) 10.8 Response to unipolar pulses (21) 10.9 Self-locking overload indicator (22) 10.10 Effect of static pressure (22) 10.11 Air temperature effects (24) 10.12 Effect of relative humidity (26) 10.13 RF transmission (27) 10.14 Electrostatic discharge immunity (28) 10.15 Power frequency magnetic field immunity (29) 10.16 Radio Frequency Electromagnetic Field Radiated Immunity (31) 11 Test items used in measuring instruments table (33) 12 Type Evaluation Records and Type Evaluation Report (34) 12.1 Type Evaluation Records (34) 12.2 Type Evaluation Report (35) Appendix A Type evaluation record format (36)

Introduction

JJF 1016-2014 "Guidelines for the preparation of evaluation standards for measuring instruments", JJF 1001-2011 "General Metrology Language and Definition "and JJF 1059.1-2012" Measurement Uncertainty Evaluation and Expression "together constitute the basis for the development of this outline Basic series of norms. This outline in accordance with GB/T 15952-2010 "Electroacoustic Personal Sound Exposure meter specifications" (IEC 61252.2002, IDT) content requirements compiled from, and with reference to the JJG980-2003 "personal sound exposure meter", able to individuals Sound exposure meter performance to make an objective, comprehensive and effective evaluation. The outline of the structure in accordance with JJF 1016-2014 "measurement equipment type evaluation guidelines for the preparation of" layout, The chapters in accordance with JJF 1015-2014 "General Specification for Evaluation of Measurement Instruments" and JJF 1002-2010 "National Meter Quantity verification procedures written rules "provisions prepared. The requirements and descriptions of uncertainty follow JJF 1059.1-2012 "Measurement Uncertainty Assessment and Expression" of the principles and provisions. This outline was first released. Personal sound exposure meter type evaluation outline

1 Scope

This type of evaluation outline applies to the classification code 28062000 personal sound exposure meter (hereinafter referred to as sound exposure meter) The type of evaluation.

2 reference documents

This outline cites the following documents. JJG188-2002 sound level meter Acoustics - Glossary of terms and definitions GB/T 3785.1-2010 Electroacoustic sound level meter Part 1. Specification GB/T 6113.101-2008 Radio disturbance and immunity measuring apparatus and methods of measurement Part 1-1 Radio Harassment and Immunity Measuring Equipment Measuring Equipment Information technology equipment - Radio disturbance limits and methods of measurement Electroacoustic sound calibrator Electroacoustic personal sound exposure meter specification Electromagnetic compatibility (EMC) test and measurement techniques Electrostatic discharge (IMD) immunity test GB/T 17626.3-2006 Electromagnetic compatibility test and measurement techniques RF electromagnetic field radiation immunity test Electromagnetic compatibility (EMC) - Testing and measurement techniques - Power frequency magnetic field immunity test GB/T 17799.1-1999 General Standard for Electromagnetic Compatibility Immunity to interference in residential, commercial and light industrial environments Degree test (IEC 61000-6-1.1997, IDT) Immunity test in industrial environments (IEC 61000-6-2.1999, IDT) Measurement microphones Part 4. Working standard microphone specifications General specification for electroacoustical measurement of condenser microphones For dated references, only the dated version applies to this specification; for undated references The latest version (including all amendments) applies to this specification.

3 Terms and definitions

JJF 1034-2005 defined and the following terms and definitions apply to this outline. 3.1 sound exposure soundexposure In a given event, such as a working day, the instantaneous A-frequency weighted sound pressure squared time integral. [GB/T 15952-2010, Definition 3.1]. Note. 1. The original unit of sound exposure in the SI system is Pa-sf, but for sound exposure measurements in the workplace, With a more convenient export unit square Pa squared hours. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of JJF 1642-2017_English be delivered?

Answer: Upon your order, we will start to translate JJF 1642-2017_English as soon as possible, and keep you informed of the progress. The lead time is typically 6 ~ 9 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of JJF 1642-2017_English with my colleagues?

Answer: Yes. The purchased PDF of JJF 1642-2017_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.