Standard No.:	GB/T 18806-2002
English Name:	General specification for the resistance strain pressure transducer/sensor
Chinese Name:	电阻应变式压力传感器总规范
Chinese Classification:	L015
Professional Classification:	GB    National Standard
Issued by:	AQSIQ
Issued on:	2002-08-09
Implemented on:	2003-4-1
Status:	valid
Language:	English
File Format:	PDF
Word Count:	9000 words
Price(USD):	270.0
Delivery:	via email in 1 business day

General specification for air ion measuring instruments 1 Scope This standard specifies the requirements, test methods, inspection rules and accompanying documents of air ion measuring instruments (hereinafter referred to as instruments). It is applicable to the air ion measuring instruments using the working principle of "capacitance inhalation method", which is the main technical basis for product development, design, production, acceptance and inspection, and also the principle and basis for formulating product standards and other technical documents. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB 4793.1-2007 Safety requirements for electrical equipment for measurement, control and laboratory use - Part 1: General requirements GB 4824 Industrial, scientific and medical (ISM) radio-frequency equipment - Disturbance characteristics - Limits and methods of measurement GB/T 6587-2012 General specification for electronic measuring instruments GB/T 9969 General principles for preparation of instructions for use of industrial products GB/T 11463 Reliability test for electronic measuring instruments GB/T 17626.2 Electromagnetic compatibility - Testing and measurement techniques - Electrostatic discharge immunity test GB/T 17626.3 Electromagnetic compatibility - Testing and measurement techniques - Radiated, radio-frequency, electromagnetic field immunity test GB/T 17626.4 Electromagnetic compatibility - Testing and measurement techniques - Electrical fast transient/burst immunity test GB/T 17626.5 Electromagnetic compatibility - Testing and measurement techniques - Surge immunity test GB/T 17626.6 Electromagnetic compatibility - Testing and measurement techniques - Immunity to conducted disturbances induced by radio-frequency fields GB/T 17626.8 Electromagnetic compatibility - Testing and measurement techniques - Power frequency magnetic field immunity test GB/T 17626.11 Electromagnetic compatibility - Testing and measurement techniques - Voltage dips, short interruptions and voltage variations immunity tests GB/T 18268.1-2010 Electrical equipment for measurement, control and laboratory use - EMC requirements - Part 1: General requirements 3 Terms and definitions For the purposes of this standard, the following terms and definitions apply. 3.1 air ion gas molecules or molecular clusters or other suspended fine particles with positive or negative charges in the air 3.2 air ion concentration number of positive and negative air ions per unit volume of air Note: The unit is ions/m3 or ions/cm3. 3.3 air ion mobility mobility of air ions in unit intensity electric field (V/m) Note: The unit is m2/(V·s) or cm2/(V·s).

Foreword i 1 Scope 2 Normative references 3 Terms and definitions 4 Requirements 4.1 Appearance and structure 4.2 Dimension and weight 4.3 Function and performance characteristic 4.4 Interface, compatibility or interoperability 4.5 Safety 4.6 Environmental adaptability 4.7 Packing and transportation 4.8 Electromagnetic compatibility 4.9 Power supply adaptability 4.10 Reliability 5 Test methods 5.1 Reference working conditions 5.2 Inspection conditions 5.3 Appearance and structure inspections 5.4 Dimension and weight inspections 5.5 Function inspections 5.6 Performance characteristic testing 5.7 Inspection of interface, compatibility or interoperability 5.8 Safety test 5.9 Environmental adaptability test 5.10 Transportation test for package 5.11 Electromagnetic compatibility test 5.12 Power supply adaptability test 5.13 Reliability test 6 Inspection rules 6.1 Inspection classification 6.2 Inspection equipment 6.3 Appraisal inspection 6.4 Quality conformance inspection 6.5 Others 7 Accompanying documents 7.1 Instructions for use 7.2 Packing list 7.3 Revised tables and drawings (if applicable) 7.4 Optional documents Annex A (Informative) Testing principles of air ion