GB 15322.1-2019 English PDF (GB15322.1-2019)

Delivery: 3 seconds. Download true-PDF + Invoice.
Get QUOTATION in 1-minute: Click GB 15322.1-2019
Historical versions: GB 15322.1-2019
Preview True-PDF (Reload/Scroll if blank)

GB 15322.1-2019: Combustible gas detectors -- Part 1: Point-type combustible gas detectors for industrial and commercial use
GB 15322.1-2019
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 13.220.20
C 81
Replacing GB 15322.1-2003, GB 15322.4-2003
Combustible Gas Detectors - Part 1: Point-type Combustible
Gas Detectors for Industrial and Commercial Use
ISSUED ON: OCTOBER 14, 2019
IMPLEMENTED ON: NOVEMBER 1, 2020
Issued by: State Administration for Market Regulation;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword ... 4
1 Scope ... 6
2 Normative References ... 6
3 Classification ... 7
4 Requirements ... 7
4.1 General Rules ... 7
4.2 Appearance Requirements ... 7
4.3 Performance ... 8
4.4 Response Performance for Detecting Gases other than Methane, Propane and Carbon
Monoxide ... 20
5 Tests ... 21
5.1 Test Outline ... 21
5.2 Basic Performance Test ... 25
5.3 Alarm Action Value Test ... 26
5.4 Measuring Range Indication Deviation Test ... 26
5.5 Response Time Test ... 26
5.6 Orientation Test ... 27
5.7 Alarm Repetition Test ... 27
5.8 High-speed Air Flow Test ... 27
5.9 Sampling Air Flow Changes (only applicable to the air-breathing specimens) ... 27
5.10 Line Transmission Performance Test (only applicable to the systematic specimens)
... 28
5.11 Detector Interchangeability Test (only applicable to the systematic specimens) ... 28
5.12 Voltage Fluctuation Test ... 28
5.13 Insulation Resistance Test ... 28
5.14 Electrical Strength Test ... 29
5.15 Electrostatic Discharge Immunity Test ... 30
5.16 Immunity Test to Radio Frequency Electromagnetic Field Radiation ... 30
5.17 Immunity Test to Electrical Fast Transient / Burst ... 30
5.18 Surge (impact) Immunity Test ... 31
5.19 Immunity Test to Conducted Disturbances, Induced by Radio-frequency Fields ... 31
5.20 High-temperature (operation) Test ... 31
5.21 Low-temperature (operation) Test ... 31
5.22 Constant Damp Heat (operation) Test ... 32
5.23 Vibration (sinusoidal) (operation) Test ... 32
5.24 Vibration (sinusoidal) (durability) Test ... 32
5.25 Drop Test ... 33
5.26 Resistance to Gas Disturbance (except for detectors with a measurement range below
3%LEL) ... 33
5.27 Toxicity Resistance Test ... 33
5.28 Resistance to High-concentration Gas Impact ... 34
5.29 Low-concentration Operation Test ... 34
5.30 Long-term Stability Test ... 34
6 Inspection Rules ... 35
6.1 Exit-factory Inspection... 35
6.2 Type Inspection ... 35
7 Markings ... 36
7.1 General Rules ... 36
7.2 Product Markings ... 36
7.3 Quality Inspection Mark ... 36
Appendix A (normative) Model Designation of Detectors ... 37
Appendix B (normative) Test Equipment for Combustible Gas Detectors... 39
Combustible Gas Detectors - Part 1: Point-type Combustible
Gas Detectors for Industrial and Commercial Use
1 Scope
This Part of GB 15322 specifies the classification, requirements, tests, inspection rules and
marking of point-type combustible gas detectors for industrial and commercial use.
This Part is applicable to point-type combustible gas detectors installed and used in industrial
and commercial places for the detection of hydrocarbons, ethers, esters, alcohols, carbon
monoxide, hydrogen and other combustible gases and vapors (hereinafter referred to as the
“detectors”). For point-type combustible gas detectors with special properties used in industrial
and commercial places, this Part may also be implemented, unless special requirements are
otherwise specified by relevant standards.
2 Normative References
The following documents are indispensable to the application of this document. In terms of
references with a specified date, only versions with a specified date are applicable to this
document. In terms of references without a specified date, the latest version (including all the
modifications) is applicable to this document.
GB 3836.1-2010 Explosive Atmospheres - Part 1: Equipment - General Requirements
GB/T 9969 General Principles for Preparation of Instructions for Use of Industrial Products
GB 12978 Rules for Test of Fire Electronic Products
GB/T 16838 Environmental Test Methods and Severities for Fire Electronic Products
GB/T 17626.2-2018 Electromagnetic Compatibility - Testing and Measurement Techniques -
Electrostatic Discharge Immunity Test
GB/T 17626.3-2016 Electromagnetic Compatibility - Testing and Measurement Techniques -
Radiated, Radio-frequency, Electromagnetic Field Immunity Test
GB/T 17626.4-2018 Electromagnetic Compatibility - Testing and Measurement Techniques -
Electrical Fast Transient / Burst Immunity Test
GB/T 17626.5-2008 Electromagnetic Compatibility - Testing and Measurement Techniques -
Surge Immunity Test
GB/T 17626.6-2017 Electromagnetic Compatibility - Testing and Measurement Techniques -
Immunity to Conducted Disturbances, Induced by Radio-frequency Fields
have no obvious scratches, cracks, burrs and other mechanical damages, and no loosening of
fastening parts.
4.3 Performance
4.3.1 General requirements
4.3.1.1 Operations, such as: zero-setting, calibration and parameter changes, of the detectors
under power-on conditions shall not change the integrity of their enclosure.
4.3.1.2 The systematic detectors shall be powered by a DC voltage of 36 V or below, and the
independent detectors shall be powered by an AC voltage of 220 V. The detectors powered by
DC voltage shall have protection measures against reversed polarity.
4.3.1.3 The free-diffusion detectors and air-breathing detectors shall have independent working
status indicator lights to respectively indicate their normal monitoring, fault and alarm working
status. If the on-site detection components of the optical fiber sensing detectors do not have
independent working status indicator lights, then, the control and indicating equipment
connected to them shall have independent working status indicator lights to respectively
indicate the working status of each detection component. The normal monitoring status
indication shall be green, the fault status indication shall be yellow, and the alarm status
indication shall be red. The low limit and high limit alarm status indications shall be clearly
distinguishable. The indicator lights shall have Chinese function annotations. Under the
illumination condition of 5 lx ~ 500 lx, and 5 m directly in front, the status of the indicator
lights shall be clearly visible.
NOTE: the normal monitoring status refers to the status when the detectors are powered on and
normally working, without issuing an alarm signal or fault signal.
4.3.1.4 When the combustible gas concentration in the monitored area reaches the alarm set
value, the detectors shall be able to issue an alarm signal. Then, place the detectors in a normal
environment, within 30 seconds, they shall be able to automatically (or manually) return to the
normal monitoring status.
4.3.1.5 The independent detectors shall have an alarm output interface. The type and capacity
of the detectors’ alarm output interface shall match the supporting products or executive
components specified by the manufacturer and shall be indicated in the instructions for use. If
the detectors’ alarm output interface has a delay function, its maximum delay time shall not
exceed 30 seconds.
4.3.1.6 The systematic detectors shall be able to output signals corresponding to their measured
concentration and working status. The type and parameters of the signals shall be indicated in
the instructions for use.
4.3.1.7 The independ...