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JJF 1368-2012: Program of Pattern Evaluation of Combustible - Gas Alarm Detectors Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid JJF 1368: Historical versions
Similar standardsJJF 1368-2012: Program of Pattern Evaluation of Combustible - Gas Alarm Detectors---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/JJF1368-2012TECHNICAL SPECIFICATIONS FOR MEASUREMENT OF THE PEOPLE'S REPUBLIC OF CHINA Program of Pattern Evaluation of Combustible -- Gas Alarm Detectors Issued on. DECEMBER 03, 2012 Implemented on. MARCH 03, 2013 Issued by. The General Administration of Quality Supervision, Inspection and Quarantine (AQSIQ) of The People's Republic of China Program of Pattern Evaluation of Combustible -- Gas Alarm Detectors Administrative organization. National Technical Committee of Environmental Chemistry Drafting organization. Hebei Provincial Institute of Metrology; Measurement Supervision and Testing Institute of Hebei Province The National Technical Committee of Environmental Chemistry is entrusted to explain this specification Chief drafting staffs of this specification. Feng Jinxin (Hebei Provincial Institute of Metrology) Song Zengliang (Hebei Provincial Institute of Metrology) Ma Ligen (Measurement Supervision and Testing Institute of Hebei Province) Participated drafting staff. Hao Jingkun (Hebei Provincial Institute of Metrology) Han Jiangzhen (Measurement Supervision and Testing Institute of Hebei Province) Bai Yuexia (Measurement Supervision and Testing Institute of Hebei Province) Table of ContentsIntroduction... 4 1 Scope... 5 2 Normative References... 5 3 General... 5 4 Technical Data and Experimental Prototype Submitted by Application Organization... 6 4.1 Technical Data... 6 4.2 Experimental Prototype... 6 5 Legal Management Requirements... 6 5.1 Requirements for Measurement Unit... 6 5.2 Requirements for Accuracy (Maximum Permissible Error)... 6 5.3 Requirements for Legal Measurement Marking and Measuring Devices Identification... 6 5.4 Requirements for Installation Marking... 7 5.5 Other Requirements... 7 6 Measuring Requirements... 7 7 General Technical Requirements... 7 7.1 Appearance... 7 7.2 Alarm Function and Alarm Operate Value... 7 7.3 Long Term Stability (Applicable only to Detector with Fixed Installation)... 8 7.4 Adaptability of Supply Voltage... 8 7.5 Requirements for Secure Environment... 8 7.6 Requirements for Climatic Environment... 8 7.7 Requirements for Mechanical Environment... 9 7.8 Requirements for Electromagnetic Compatibility... 9 8 Lists of Pattern Evaluation Items... 9 9 Test Methods and Condition for Test Items... 10 9.1 Measuring Requirements... 10 9.2 General Technical Requirements... 14 10 Judgments and Treatment of Pattern Evaluation Result... 20 11 Original Records Form for Pattern Evaluation... 21 Appendix A Original Records Form for Pattern Evaluation of Combustible-gas Detectors. 22 References and Original Chinese Documents... 42IntroductionThis program of pattern evaluation is prepared according to JJF 1015 "General Norm for Pattern Evaluation and Pattern Approval of Measuring Instruments", JJF 1016 "The Rules for Drafting Program of Pattern Evaluation of Measuring Instruments" and JJF 1001 "General Terms in Metrology and Their Definitions". Technical regulations such as JJG 693-2011 "Alarm Detectors of Combustible Gas", GB 12358-2006 "Gas Monitors and Alarms for Workplace General Technical Requirements", GB 15322-2003 "Combustible Gas Detector" and GB 16808-2008 "Combustible Gas Alarm Control Units" are referenced by technical index of this program of pattern evaluation. This program of pattern evaluation is issued for the first time. TECHNICAL SPECIFICATIONS FOR MEASUREMENT OF THE PEOPLE'S REPUBLIC OF CHINA Program of Pattern Evaluation of Combustible -- Gas Alarm Detectors1 ScopeThis program of pattern evaluation applies to the combustible-gas alarm detectors (including combustible gas detector, hereinafter referred to as "detector") used in non-shaft operating environment and civil place.2 Normative ReferencesJJG 693-2011 “Alarm Detectors of Combustible Gas" GB 12358-2006 “Gas Monitors and Alarms for Workplace-General Technical Requirements" GB 15322-2003 “Combustible Gas Detector" GB 16808-2008 “Combustible Gas Alarm Control Units" GB/T 17626.2-2006 “Electromagnetic Compatibility (EMC) -- Testing and Measurement Techniques -- Electrostatic Discharge Immunity Test" GB/T 17626.3-2006 “Electromagnetic Compatibility-Testing and Measurement Techniques-Radiated Radio-frequency Electromagnetic Field Immunity Test"3 GeneralThe detector is divided into catalytic combustion type, thermal conductivity type, semiconductor type and infrared absorption type - according to the test principle; divided into diffusion type and inhalation type - according to sampling type; divided into portable type and fixed type - according to usage mode. The detector mainly consists of detecting element, amplifying circuit, alarm system and displayer. It is used to monitor the concentration of combustible gas exist in the environment.4 Technical Data and Experimental Prototype Submitted byApplication Organization 4.1 Technical Data 4.2 Experimental Prototype The application organization shall provide the prototypes it produced and file an application for a single product or series products. In case of application for a single product, three prototypes shall be provided for non-fixed-type equipment; six prototypes, of which three prototypes shall be used for the long-term stability test, shall be provided for fixed-type equipment.5 Legal Management Requirements5.1 Requirements for Measurement Unit The detector shall adopt the legal measurement units. 5.2 Requirements for Accuracy (Maximum Permissible Error) The maximum permissible error of the detector shall comply with JJG 693-2011 "Alarm Detectors of Combustible Gas". 5.3 Requirements for Legal Measurement Marking and Measuring Devices Identification The legal measurement marking and measuring device identification shall be indicated on the detector and easily seen - such as nameplate, panel and gauge-head and the marking. Serial number and description must be distinguishable and firmly reliable. 5.4 Requirements for Installation Marking The detector, whose accuracy will be affected by the improper installation, shall be provided with the installation instructions marking.6 Measuring RequirementsThe measuring requirements are detailed in Table 1.7 General Technical Requirements7.1 Appearance 7.2 Alarm Function and Alarm Operate Value When the indication on the detector reaches the alarm set value, the detector shall produce sound and light alarm. When the detector produces the alarm signal, the detector with output control function shall start the output control function. When it is in under-voltage state, the battery-powered detector shall produce the sound or light index signal obviously which must be different from the alarm signal. 7.4 Adaptability of Supply Voltage 7.4.1 With the supply voltage being ±15% of the rated supply voltage, the indicated error on the AC powered detector shall be in accordance with those specified in Table 1. 7.5 Requirements for Secure Environment 7.5.1 Insulation resistance (not applicable to the battery-powered detector) At the normal test conditions, the insulation resistance of the detector shall not be less than 100 MΩ; after the damp heat test, the insulation resistance of the detector shall not be less than 1MΩ. 7.6 Requirements for Climatic Environment 7.6.1 High-temperature test With the detector being in the normal monitoring state (the test temperature of 55 ℃ or 70 for outdoor use)℃, the test shall last 2h. 7.6.3 Constant damp heat test With the detector being in the normal monitoring state (40, 93%), the test ℃ shall last continuous 2h. During the test, the detector shall be able to work normally. Upon the test duration is reached, the indicated error shall not exceed ±10%FS. After the test, the detector shall be free from coating damage or corrosion. 7.7 Requirements for Mechanical Environment 7.8 Requirements for Electromagnetic Compatibility 7.8.1 Radio-frequency electromagnetic field radiation immunity test Field strength. 10V/m; frequency range. 80MHz~1000MHz. During the test, the detector shall be able to work normally; after the test, the indicated error shall be in accordance with those specified in Table 1. 7.8.2 Electrostatic discharge immunity test Discharge voltage. 8kV; discharge times. 10.During the test, the detector shall be able to work normally; after the test, the indicated error shall be in accordance with those specified in Table 1.8 Lists of Pattern Evaluation ItemsThe pattern evaluation items of the detector are detailed in Table 3.9 Test Methods and Condition for Test Items9.1 Measuring Requirements 9.1.1 Indicated error 9.1.1.1 Test purposes To test whether the indicated error of the detector complies with Table 1 under the test conditions. 9.1.1.5 Data processing The indicated error at all points Δc is calculated according to Formula (1) and the maximum absolute value of Δc is the indicated error. 9.1.2 Repeatability 9.1.2.1 Test purposes To test whether the repeatability of the detector complies with Table 1 under the test conditions. 9.1.2.2 Test conditions Same as 9.1.1.2. 9.1.2.3 Test equipment Same as 9.1.1.3. 9.1.2.4 Test procedure With stable preheating, provide the gas reference material at a concentration about 40% of full span and record the stable indication ci on the detector, and remove the gas reference material. Conduct six such operations at the identical condition. 9.1.3 Response time 9.1.3.1 Test purposes To test whether the response time of the detector complies with Table 1 under the test conditions. 9.1.3.2 Test conditions Same as 9.1.1.2. 9.2.9 Constant damp heat test 9.2.9.1 Test purposes To test whether the detector operates in accordance with 7.6.3 under the constant damp heat environment. 9.2.9.2 Test conditions Temperature. 40 ±2℃ ℃; Relative humidity. 93%±3%; Duration. 2h. 9.2.12.3 Test equipment a) In conformity with the requirements of Chapter 6 in GB/T 17626.3-2006; b) Same as 9.1.1.3. 9.2.12.4 Test procedure Make the test according to the requirements of Chapter 8 in GB/T 17626.3-2006.During the test, observe and record operating state of the detector; after the test, make the test according to 9.1.1.4. 9.2.13.6 Qualification criteria It is qualified if the result is in accordance with those specified in 7.8.2. 9.2.14 Electrical fast transient/burst immunity test (only for AC powered detector) 9.2.14.1 Test purposes To test whether the electrical fast transient/burst immunity of the detector complies with 7.8.3 under the test conditions. 9.2.14.2 Test conditions Same as 9.1.1.2. 9.2.14.3 Test equipment a) In conformity with the requirements of Chapter 6 in GB/T 17626.4-2008. b) Same as 9.1.1.3. 9.2.14.4 Test procedure Make the test according to the requirements of Chapter 8 in GB/T 17626.4-2008.During the test, observe and record operating state of the detector; after the test, make the test according to 9.1.1.4. 9.2.14.5 Data processing Same as 9.1.1.5. 9.2.14.6 Qualification criteria It is qualified if the result is in accordance with those specified in 7.8.3. JJF 1368‐2012 TECHNICAL SPECIFICATIONS FOR MEASUREMENT OF THE PEOPLE'S REPUBLIC OF CHINA Program of Pattern Evaluation of Combustible -- Gas Alarm Detectors Issued on. DECEMBER 03, 2012 Implemented on. MARCH 03, 2013 Issued by. The General Administration of Quality Supervision, Inspection and Quarantine (AQSIQ) of The People's Republic of China Program of Pattern Evaluation of Combustible -- Gas Alarm Detectors Administrative organization. National Technical Committee of Environmental Chemistry Drafting organization. Hebei Provincial Institute of Metrology; Measurement Supervision and Testing Institute of Hebei Province The National Technical Committee of Environmental Chemistry is entrusted to explain this specification Chief drafting staffs of this specification. Feng Jinxin (Hebei Provincial Institute of Metrology) Song Zengliang (Hebei Provincial Institute of Metrology) Ma Ligen (Measurement Supervision and Testing Institute of Hebei Province) Participated drafting staff. Hao Jingkun (Hebei Provincial Institute of Metrology) Han Jiangzhen (Measurement Supervision and Testing Institute of Hebei Province) Bai Yuexia (Measurement Supervision and Testing Institute of Hebei Province)Table of ContentsIntroduction... 4 1 Scope... 5 2 Normative References... 5 3 General... 5 4 Technical Data and Experimental Prototype Submitted by Application Organization... 6 4.1 Technical Data... 6 4.2 Experimental Prototype... 6 5 Legal Management Requirements... 6 5.1 Requirements for Measurement Unit... 6 5.2 Requirements for Accuracy (Maximum Permissible Error)... 6 5.3 Requirements for Legal Measurement Marking and Measuring Devices Identification... 6 5.4 Requirements for Installation Marking... 7 5.5 Other Requirements... 7 6 Measuring Requirements... 7 7 General Technical Requirements... 7 7.1 Appearance... 7 7.2 Alarm Function and Alarm Operate Value... 7 7.3 Long Term Stability (Applicable only to Detector with Fixed Installation)... 8 7.4 Adaptability of Supply Voltage... 8 7.5 Requirements for Secure Environment... 8 7.6 Requirements for Climatic Environment... 8 7.7 Requirements for Mechanical Environment... 9 7.8 Requirements for Electromagnetic Compatibility... 9 8 Lists of Pattern Evaluation Items... 9 9 Test Methods and Condition for Test Items... 10 9.1 Measuring Requirements... 10 9.2 General Technical Requirements... 14 10 Judgments and Treatment of Pattern Evaluation Result... 20 11 Original Records Form for Pattern Evaluation... 21 Appendix A Original Records Form for Pattern Evaluation of Combustible-gas Detectors. 22 References and Original Chinese Documents... 42IntroductionThis program of pattern evaluation is prepared according to JJF 1015 "General Norm for Pattern Evaluation and Pattern Approval of Measuring Instruments", JJF 1016 "The Rules for Drafting Program of Pattern Evaluation of Measuring Instruments" and JJF 1001 "General Terms in Metrology and Their Definitions". Technical regulations such as JJG 693-2011 "Alarm Detectors of Combustible Gas", GB 12358-2006 "Gas Monitors and Alarms for Workplace General Technical Requirements", GB 15322-2003 "Combustible Gas Detector" and GB 16808-2008 "Combustible Gas Alarm Control Units" are referenced by technical index of this program of pattern evaluation. This program of pattern evaluation is issued for the first time. TECHNICAL SPECIFICATIONS FOR MEASUREMENT OF THE PEOPLE'S REPUBLIC OF CHINA Program of Pattern Evaluation of Combustible -- Gas Alarm Detectors1 ScopeThis program of pattern evaluation applies to the combustible-gas alarm detectors (including combustible gas detector, hereinafter referred to as "detector") used in non-shaft operating environment and civil place.2 Normative ReferencesJJG 693-2011 “Alarm Detectors of Combustible Gas" GB 12358-2006 “Gas Monitors and Alarms for Workplace-General Technical Requirements" GB 15322-2003 “Combustible Gas Detector" GB 16808-2008 “Combustible Gas Alarm Control Units" GB/T 17626.2-2006 “Electromagnetic Compatibility (EMC) -- Testing and Measurement Techniques -- Electrostatic Discharge Immunity Test" GB/T 17626.3-2006 “Electromagnetic Compatibility-Testing and Measurement Techniques-Radiated Radio-frequency Electromagnetic Field Immunity Test"3 GeneralThe detector is divided into catalytic combustion type, thermal conductivity type, semiconductor type and infrared absorption type - according to the test principle; divided into diffusion type and inhalation type - according to sampling type; divided into portable type and fixed type - according to usage mode. The detector mainly consists of detecting element, amplifying circuit, alarm system and displayer. It is used to monitor the concentration of combustible gas exist in the environment.4 Technical Data and Experimental Prototype Submitted byApplication Organization 4.1 Technical Data 4.2 Experimental Prototype The application organization shall provide the prototypes it produced and file an application for a single product or series products. In case of application for a single product, three prototypes shall be provided for non-fixed-type equipment; six prototypes, of which three prototypes shall be used for the long-term stability test, shall be provided for fixed-type equipment.5 Legal Management Requirements5.1 Requirements for Measurement Unit The detector shall adopt the legal measurement units. 5.2 Requirements for Accuracy (Maximum Permissible Error) The maximum permissible error of the detector shall comply with JJG 693-2011 "Alarm Detectors of Combustible Gas". 5.3 Requirements for Legal Measurement Marking and Measuring Devices Identification The legal measurement marking and measuring device identification shall be indicated on the detector and easily seen - such as nameplate, panel and gauge-head and the marking. Serial number and description must be distinguishable and firmly reliable. 5.4 Requirements for Installation Marking The detector, whose accuracy will be affected by the improper installation, shall be provided with the installation instructions marking.6 Measuring RequirementsThe measuring requirements are detailed in Table 1.7 General Technical Requirements7.1 Appearance 7.2 Alarm Function and Alarm Operate Value When the indication on the detector reaches the alarm set value, the detector shall produce sound and light alarm. When the detector produces the alarm signal, the detector with output control function shall start the output control function. When it is in under-voltage state, the battery-powered detector shall produce the sound or light index signal obviously which must be different from the alarm signal. 7.4 Adaptability of Supply Voltage 7.4.1 With the supply voltage being ±15% of the rated supply voltage, the indicated error on the AC powered detector shall be in accordance with those specified in Table 1. 7.5 Requirements for Secure Environment 7.5.1 Insulation resistance (not applicable to the battery-powered detector) At the normal test conditions, the insulation resistance of the detector shall not be less than 100 MΩ; after the damp heat test, the insulation resistance of the detector shall not be less than 1MΩ. 7.6 Requirements for Climatic Environment 7.6.1 High-temperature test With the detector being in the normal monitoring state (the test temperature of 55 ℃ or 70 for outdoor use)℃, the test shall last 2h. 7.6.3 Constant damp heat test With the detector being in the normal monitoring state (40, 93%), the test ℃ shall last continuous 2h. During the test, the detector shall be able to work normally. Upon the test duration is reached, the indicated error shall not exceed ±10%FS. After the test, the detector shall be free from coating damage or corrosion. 7.7 Requirements for Mechanical Environment 7.8 Requirements for Electromagnetic Compatibility 7.8.1 Radio-frequency electromagnetic field radiation immunity test Field strength. 10V/m; frequency range. 80MHz~1000MHz. During the test, the detector shall be able to work normally; after the test, the indicated error shall be in accordance with those specified in Table 1. 7.8.2 Electrostatic discharge immunity test Discharge voltage. 8kV; discharge times. 10.During the test, the detector shall be able to work normally; after the test, the indicated error shall be in accordance with those specified in Table 1.8 Lists of Pattern Evaluation ItemsThe pattern evaluation items of the detector are detailed in Table 3.9 Test Methods and Condition for Test Items9.1 Measuring Requirements 9.1.1 Indicated error 9.1.1.1 Test purposes To test whether the indicated error of the detector complies with Table 1 under the test conditions. 9.1.1.5 Data processing The indicated error at all points Δc is calculated according to Formula (1) and the maximum absolute value of Δc is the indicated error. 9.1.2 Repeatability 9.1.2.1 Test purposes To test whether the repeatability of the detector complies with Table 1 under the test conditions. 9.1.2.2 Test conditions Same as 9.1.1.2. 9.1.2.3 Test equipment Same as 9.1.1.3. 9.1.2.4 Test procedure With stable preheating, provide the gas reference material at a concentration about 40% of full span and record the stable indication ci on the detector, and remove the gas reference material. Conduct six such operations at the identical condition. 9.1.3 Response time 9.1.3.1 Test purposes To test whether the response time of the detector complies with Table 1 under the test conditions. 9.1.3.2 Test conditions Same as 9.1.1.2. 9.2.9 Constant damp heat test 9.2.9.1 Test purposes To test whether the detector operates in accordance with 7.6.3 under the constant damp heat environment. 9.2.9.2 Test conditions Temperature. 40 ±2℃ ℃; Relative humidity. 93%±3%; Duration. 2h. 9.2.12.3 Test equipment a) In conformity with the requirements of Chapter 6 in GB/T 17626.3-2006; b) Same as 9.1.1.3. 9.2.12.4 Test procedure Make the test according to the requirements of Chapter 8 in GB/T 17626.3-2006.During the test, observe and record operating state of the detector; after the test, make the test according to 9.1.1.4. 9.2.13.6 Qualification criteria It is qualified if the result is in accordance with those specified in 7.8.2. 9.2.14 Electrical fast transient/burst immunity test (only for AC powered detector) 9.2.14.1 Test purposes To test whether the electrical fast transient/burst immunity of the detector complies with 7.8.3 under the test conditions. 9.2.14.2 Test conditions Same as 9.1.1.2. 9.2.14.3 Test equipment a) In conformity with the requirements of Chapter 6 in GB/T 17626.4-2008. b) Same as 9.1.1.3. 9.2.14.4 Test procedure Make the test according to the requirements of Chapter 8 in GB/T 17626.4-2008.During the test, observe and record operating state of the detector; after the test, make the test according to 9.1.1.4. 9.2.14.5 Data processing Same as 9.1.1.5. 9.2.14.6 Qualification criteria It is qualified if the result is in accordance with those specified in 7.8.3. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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