Some standard content:
GB16692—1996
This standard adopts the Japanese JISS2148--1991 "Liquefied Petroleum Gas Container" in a non-equivalent manner. Through the formulation of this standard, my country's portable stove butane cylinders are standardized and unified to meet the needs of safe and healthy development of portable stove butane cylinders in my country.
In order to adapt to my country's national conditions, the volume requirements of gas cylinders are added to the size parameters of this standard to prevent small volumes and reduce unsafe factors. In the inspection rules, the specific conditions of type inspection and the provisions of sampling inspection according to GB2828 and GB2829 are added. The purpose is to use scientific sampling methods, enhance the discrimination of inspections, and strengthen product quality control. Appendix A of this standard is the appendix of the standard.
This standard is proposed by the State Administration of Technical Supervision. This standard is under the jurisdiction of the Ministry of Construction's urban gas standard technology management unit. This standard is drafted by the China Municipal Engineering North China Design Institute. The main drafters of this standard are: Zhai Enbo and Wang Qi. 768
1 Scope
National Standard of the People's Republic of China
Butane cylinders for portable butane cooker
Butane cylinders for portable butane cookerGB16692—1996
This standard specifies the structure, size parameters, technical requirements, test methods, inspection and acceptance, marking, packaging, transportation and storage of butane cylinders for portable butane cookers (hereinafter referred to as cylinders). This standard applies to butane cylinders that are dedicated to portable cookers and are filled with butane gas and are disposable. The cylinders specified in this standard and the cookers specified in GB16691--1996 "Portable butane cookers" are supporting equipment. 2 Referenced standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards are subject to revision, and parties using this standard should explore the possibility of using the latest versions of the following standards. All-glass syringes
GB 1959-88
GB 2520—88
GB 282887
GB 2829—87
GB 9251.-88
Electroplated tinned steel sheets and strips
Counting sampling procedures and sampling tables for batch inspection (applicable to inspection of continuous batches)Counting sampling procedures and sampling tables for periodic inspection (applicable to inspection of production process stability)Method for hydrostatic test of gas cylinders
GB 10410. 3—89
GB 16691
：1996
3 Definitions
Gas chromatography analysis of liquefied petroleum gas componentsPortable butane gas stove
The following definitions are adopted in this standard.
3.1 Normal working status
normal work status
The working status of the gas cylinder loaded into the portable stove.
3.2 Rated packing volume
The mass of butane gas loaded as specified in the design. 4 Product model compilation
4.1 Butane gas cylinders for portable stoves are indicated by the Chinese phonetic initials BDP. 4.2 Rated packing volume is indicated by Arabic numerals. 4.3 Models are indicated by letters A, B, C... Approved by the State Bureau of Technical Supervision on December 18, 1996, and implemented on April 1, 1997
[BDP-[240-B
-Modified Model
Rated Filling Volume
GB16692---1996
Butane Gas Cylinder for Portable Stove
The above example shows that the rated filling volume of butane gas cylinder for portable stove is 240g, which is the second modification. 5 Structure
The structure of each part of the gas cylinder shall take into account safety and durability and meet the following requirements: a) The bite joint shall be firm and reliable, and the end shall be smooth; b) During transportation and use, the air tightness and pressure resistance shall not be damaged by vibration or impact; c) Butane gas shall be sprayed out in gaseous state during normal use; d) When the gas cylinder is removed from the portable stove, there shall be no leakage; e) The valve stem shall have a protective cap that is easy to remove during use. 6 Dimensional parameters
6.1 The dimensions of gas cylinders and valves shall comply with those shown in Figures 1 and 2 and the provisions of Table 1: d.
d--stem diameter; Lr~stem length
Figure 1 Cylinder valve
GB 16692
LD, outer diameter of the lower edge of the bottle; D,--outer diameter of the bottle body; D outer diameter of the upper edge of the bottle; H,--total height of the gas cylinder
Figure 2 Gas cylinder
68.2±0.5
65. 7± 0. 7
Dimensions of gas cylinders and valves
68.5±0.5
6.2 The maximum stroke dimension and initial injection stroke dimension of the valve shall comply with the provisions of Table 2. Table 2 Valve stroke size
Maximum stroke size
Initial injection stroke size
The volume of the gas cylinder should not be less than 520ml
7 Technical requirements
7.1 Bottle material
The material used for the bottle body should comply with GB2520 or metal materials with equivalent corrosion resistance. 7.2±0.5
7.2 Seal performance
The seal should have good butane gas resistance, and its quality change rate after immersion should be less than 20%, and there should be no deterioration and deformation that affects use. 7.3 Butane gas composition
C, H1. The content is more than 95%, and other hydrocarbons should be less than 5%. 7.4 Butane gas odor
The butane gas filled in the gas cylinder should have a peculiar smell, and the peculiar smell can be smelled when there is 1/1000 butane gas in the air. 7.5 Performance of gas cylinders
The performance of gas cylinders shall meet the requirements of Table 3.
Stem compression force
Air tightness
Vibration resistance
Durability
Filling volume error
7.6Rated filling volume
GB 16692—1996
Table 3 Gas cylinder performance
8～25N
1.3MPa30sNo deformationNo leakage
1.5MPa30sNo rupture
18～50℃30min. When the volume is large, 55℃±2℃110sNo leakage10Hz1: vibration left and right for 30minNo leakageCompression 100 times at a speed of times per secondNo leakage- 2. 0% ~1. 0%
Rated filling volume should be 220~250g.
8 Test method
8.1 General
Chapter 5, 6 and 7.1 of this standard shall be tested by self-viewing and corresponding test equipment according to their specified contents. Test method
8.2 Valve stem spring compression force test
Install the gas cylinder on a special test device, compress the valve stem, and measure the minimum load when compressed by 1mm and the maximum load when the maximum size is reached. Carry out the experiment 5 times and take the average value. 8.3 Pressure Test
According to (G39251 test, pressurize to 1.3MPa and maintain pressure for 30s, observe whether there is deformation and leakage. Pressurize to 1.5MPa and maintain pressure for 30s to observe whether there is rupture.
8.4 Air Tightness Test
Pour the gas cylinder filled with butane gas into 48～~50(water for 30min. If the amount is large, it is allowed to be in 55℃±2(water. Keep it for 110s and observe whether it is leaking.
8.5 Vibration Test
Firmly install the gas cylinder in the transport packaging state on the vibration test bench, vibrate up and down and left and right at a frequency of 10Hz and a full amplitude of 5mm for 30min each. Remove it and carry out 8.4 air tightness test to observe whether there is leakage.8.6 Durability Test||t t||Compress the valve stem to the maximum stroke size at a speed of compression times per second, and compress it continuously for 100 times, then carry out the test in 8.4 to check for leaks. This repeated compression is carried out when the butane gas is not sprayed out. 8.7 Butane gas resistance test for seals
Put the seals with pre-determined quality in -10C and 40C butane gas with a purity of more than 95% for 24 hours respectively, and measure their masses after taking them out. Use formula (1) to calculate the mass change rate. And visually check whether there is deterioration and deformation that affects use. W,-w.
Where: W.-seal mass change rate.%; W.·mass of the seal before immersion·g;
mass of the seal after immersion, g.
× 100%
8.8 Filling volume test
Measure the mass of the empty bottle and the cylinder filled with butane gas, and calculate the mass of the filled butane gas using formula (2). m, = me-mk
Wherein: mx
The actual mass of the butane gas filled·g;
m.-…The mass of the empty bottle.g;
GB 16692--1996
m．…The mass of the cylinder filled with butane gas, g. 8.9I Butane gas composition analysis
According to the analysis method of GB10410.3 standard, take samples from the gas cylinder for analysis. 8.10 Odor test
Test according to the method in Appendix A (Appendix of the standard). 8.11 Initial spray stroke and maximum stroke size test of valve 8.11.1 Install the gas cylinder filled with butane gas on the special device, slowly compress the valve stem until bubbles just emerge, and use a dry gauge to measure the compression of the valve.wwW.bzxz.Net
8.11.2 When the valve stem is compressed to the maximum stroke position, measure the compression size of the valve stem. 9 Inspection rules
9.1 Type inspection
9.1.1 Type inspection should be carried out in any of the following situations: a) New product identification, when old products are transferred to the factory; b) When the design, process, or material are changed; c) When production is resumed after 6 months of suspension; d) After continuous production of 100,000 units:
e) After continuous production for 6 months;
1) When there is a large difference between the export inspection results and the last type inspection; g) When the national quality supervision agency proposes to conduct type inspection. 9.1.2 Inspection items and classification of non-conformities
Inspection items shall be those specified in Chapters 4, 5, 6, 7 and 10 of this standard. Non-conformities shall be classified as follows:
Class A non-conformities:
a) Air tightness;
b) Dimensions (except volume);
c) Marking.
Class B non-conformities:
a) Pressure resistance;
b) Filling volume;
c) Volume.
Class C non-conformities:
All items except Class A and Class B.
9.1.3 Sampling
According to GB2829, a single sampling plan with discrimination level 1 shall be selected. Unqualified quality level:
A-type project: RQL-6.5
B-type project: RQI.=15
(Type project: RQI.=30
9.1.4 Judgment rules
According to the sampling plan specified in 9.1.3, all are qualified, and the type inspection represented by the type inspection is judged to be qualified. Otherwise, it is 773
unqualified.
9.2 Factory inspection
GB16692—1996
The number of shipments is a batch, and one gas cylinder is a unit product. The airtightness should be checked one by one. Only inspection, but reasonable random inspection is allowed. 9.2.1 Random inspection items, non-conforming categories, qualified quality levels and inspection levels shall be as specified in Table 4. Table 4
Inspection items
Air tightness
Total height of gas cylinder
Outer diameter of upper edge of cylinder
Outer diameter of lower edge of cylinder
Outer diameter of cylinder
Valve stem diameter
Valve stem length
Pressure resistance
Filling volume
Non-conforming categories
Class A non-conforming
Class A non-conforming
Class A non-conforming
Class A unqualified
Class A unqualified
Class A unqualified
Class B unqualified
Class B unqualified
Class B unqualified
9.2.2 Sampling
According to G132828, select a sampling plan. 9.2.3 Judgment rules
Quality level AQI
Inspection level
According to the sampling plan determined in 9.2.2, all are qualified, and the inspection batch is judged to be qualified batch by batch. Otherwise, it is unqualified. Unqualified batches are allowed to be checked for unqualified items. 100% inspection, reject the unqualified products, and re-inspect according to the above relevant clauses. Marking
The following contents should be marked on the gas cylinder in a way that is not easy to erase: a) Alkane:
b) Gas cylinder storage method;
) Gas cylinder use range;
d) Manufacturer name;
e) Gas cylinder installation method;
f) One-time use, empty bottles should not be thrown into the fire; g) Product model or mark;
h) Manufacturing date;
i) Rated filling volume;
j) Empty bottle quality:
k) Implementation standard.
Quality certificate
Each packaging box should have a certificate with the seal of the inspection agency representative. 77.1
Packaging, transportation, storage
GB16692-1996
12.1 Gas cylinders must be packed in boxes to ensure that they are not damaged during transportation and storage. 12.2 Handle with care during transportation to prevent bumps and heavy objects from crushing them. 12.3 Gas cylinders should be stored in a cool place, away from fire sources and prevent exposure to the sun. 775
A1 Summary of determination methods
GB16692-.1996
Appendix A
(Standard Appendix)
Determination of the odor of butane gas
Use a syringe to extract a certain amount of butane gas, inject it into the syringe used for dilution, mix it with the air in the syringe to form a test gas, and use the inspection door outside the panel to determine whether the butane gas has an odor. Calculate the detection dilution multiple of butane gas from the dilution multiple of the test gas A2 Devices and Instruments
a) Butane gas sampling bag. Made of plastic or rubber, with a capacity of 3 to 20L, butane gas has low air permeability, low odor absorption, and is a special bag without odor:
b) Butane gas sampling syringe, in accordance with (B1959; c) Dilution syringe. In accordance with (GB1959, scale error less than 5%, capacity 200ml. Front end inner diameter 5m m, impermeable to butane gas, low absorption of odor. No odor;
d) Hose. Low permeability and adsorption of butane gas, no odor; e) Syringe luggage box, with sealing structure;) Active magnet;
g) No paper;
h) Cleaning agent;
i) Syringe rubber cover;
j) Methanol and ketone;
k) Silicone rubber plug for gas chromatograph;
1) Spring cool.
A3 Preparation before operation
A3.1 Cleaning of syringes
a) Clean new syringes with water;
b) Rinse the syringe used for dilution with clean water first, then with a cleaning agent, and finally with clean water; c) For sampling syringes of butane gas with high concentration of odor pollution, first clean it with a cleaning agent and then clean it thoroughly with methanol or acetone; if there is still residual odor, boil it in boiling water, wash it with clean water, and then deodorize it in an activated carbon box for storage; d) Separate the inner and outer tubes of the syringe and put them into an odor-free room to fully dry; e) Wrap the dried syringe with odor-free paper that does not absorb odor and put it into the odor detection room. A3.2 Sampling of combustion gas
a) Connect the hose to the sampling port of butane gas, and after ventilation for a few minutes, clamp the front end of the hose with a spring clamp; b) Connect the front end of the hose to the test gas sampling bag, replace the gas in the bag several times, fill the sampling bag with butane gas, remove the hose, and plug the sampling bag with a brick rubber plug for gas chromatograph. A4 Measurement operation
a) As repaired A1. Insert the syringe needle into the silicone rubber plug on the mouth of the sampling bag filled with butane gas, extract butane gas, and drain it to the full. Repeat several times to extract a certain amount of butane gas. 776
GB16692
A Silicon rubber plug for gas chromatograph; B Gas sampling syringe Figure A1 Sampling of butane gas
b) The dilution operation of butane gas is shown in Figure A2 and is performed by two people. First, insert the sampling syringe needle containing butane gas into the front hole of the dilution syringe, and then one person pulls the syringe piston to inhale clean air. At the same time, another person pushes the sampling syringe to suck the lower butane gas into the dilution syringe. During operation, be careful not to let the tested butane gas leak out from the dilution syringe. A Dilution syringe 8 Injection needle: "Sampling syringe Figure A2 Dilution operation of the tested butane gas
() When the gas volume in the syringe reaches 100ml or 200ml, the concentration of butane gas in the syringe is relatively high. When further dilution is required, place the syringe for about 15 minutes to allow it to diffuse evenly. Then discharge part of the gas and inhale clean air. Repeat this operation until the required dilution multiple is reached. Cover the syringe cap and place it for 15 minutes to allow it to diffuse evenly to form a butane gas sample for testing. d) Align the front end of the dilution syringe with the center line of the odor detection hole on the panel, gently push out all the test butane sample, let people inhale it naturally, and smell the gas for odor.
e) Replace the used dilution syringe with clean air until the odor is removed. If the absence of odor cannot be guaranteed, replace it with a spare syringe. f) Change different dilution multiples and repeat steps a) and d). 7771 Type inspection
9.1.1 Type inspection shall be conducted in any of the following cases: a) identification of new products, transfer of old products; b) change of design, process or material; c) resumption of production after suspension for 6 months; d) after continuous production of 100,000 pieces;
e) after continuous production for 6 months;
1) when there is a significant difference between the results of the final inspection and the last type inspection; g) when the national quality supervision agency proposes to conduct type inspection. 9.1.2 Inspection items and classification of non-conformities
Inspection items shall be those specified in Chapters 4, 5, 6, 7 and 10 of this standard. Non-conformities shall be classified as follows:
Class A non-conformities:
a) air tightness;
b) dimensions (except volume);
c) markings.
Class B unqualified items:
a) pressure resistance;
b) filling volume;
c) volume.
Class C unqualified items:
All items except Class A and Class B.
9.1.3 Sampling
According to GB2829, a single sampling plan with discrimination level 1 is selected. Unqualified quality level:
A-type project: RQL-6.5
B-type project: RQI.=15
(Type project: RQI.=30
9.1.4 Judgment rules
According to the sampling plan specified in 9.1.3, all are qualified, and the type inspection represented by the type inspection is judged to be qualified. Otherwise, it is 773
unqualified.
9.2 Factory inspection
GB16692—1996
The number of shipments is a batch, and one gas cylinder is a unit product. The airtightness should be checked one by one. Only inspection, but reasonable random inspection is allowed. 9.2.1 Random inspection items, non-conforming categories, qualified quality levels and inspection levels shall be as specified in Table 4. Table 4
Inspection items
Air tightness
Total height of gas cylinder
Outer diameter of upper edge of cylinder
Outer diameter of lower edge of cylinder
Outer diameter of cylinder
Valve stem diameter
Valve stem length
Pressure resistance
Filling volume
Non-conforming categories
Class A non-conforming
Class A non-conforming
Class A non-conforming
Class A unqualified
Class A unqualified
Class A unqualified
Class B unqualified
Class B unqualified
Class B unqualified
9.2.2 Sampling
According to G132828, select a sampling plan. 9.2.3 Judgment rules
Quality level AQI
Inspection level
According to the sampling plan determined in 9.2.2, all are qualified, and the inspection batch is judged to be qualified batch by batch. Otherwise, it is unqualified. Unqualified batches are allowed to be checked for unqualified items. 100% inspection, reject the unqualified products, and re-inspect according to the above relevant clauses. Marking
The following contents should be marked on the gas cylinder in a way that is not easy to erase: a) Alkane:
b) Gas cylinder storage method;
) Gas cylinder use range;
d) Manufacturer name;
e) Gas cylinder installation method;
f) One-time use, empty bottles should not be thrown into the fire; g) Product model or mark;
h) Manufacturing date;
i) Rated filling volume;
j) Empty bottle quality:
k) Implementation standard.
Quality certificate
Each packaging box should have a certificate with the seal of the inspection agency representative. 77.1
Packaging, transportation, storage
GB16692-1996
12.1 Gas cylinders must be packed in boxes to ensure that they are not damaged during transportation and storage. 12.2 Handle with care during transportation to prevent bumps and heavy objects from crushing them. 12.3 Gas cylinders should be stored in a cool place, away from fire sources and prevent exposure to the sun. 775
A1 Summary of determination methods
GB16692-.1996
Appendix A
(Standard Appendix)
Determination of the odor of butane gas
Use a syringe to extract a certain amount of butane gas, inject it into the syringe used for dilution, mix it with the air in the syringe to form a test gas, and use the inspection door outside the panel to determine whether the butane gas has an odor. Calculate the detection dilution multiple of butane gas from the dilution multiple of the test gas A2 Devices and Instruments
a) Butane gas sampling bag. Made of plastic or rubber, with a capacity of 3 to 20L, butane gas has low air permeability, low odor absorption, and is a special bag without odor:
b) Butane gas sampling syringe, in accordance with (B1959; c) Dilution syringe. In accordance with (GB1959, scale error less than 5%, capacity 200ml. Front end inner diameter 5m m, impermeable to butane gas, low absorption of odor. No odor;
d) Hose. Low permeability and adsorption of butane gas, no odor; e) Syringe luggage box, with sealing structure;) Active magnet;
g) No paper;
h) Cleaning agent;
i) Syringe rubber cover;
j) Methanol and ketone;
k) Silicone rubber plug for gas chromatograph;
1) Spring cool.
A3 Preparation before operation
A3.1 Cleaning of syringes
a) Clean new syringes with water;
b) Rinse the syringe used for dilution with clean water first, then with a cleaning agent, and finally with clean water; c) For sampling syringes of butane gas with high concentration of odor pollution, first clean it with a cleaning agent and then clean it thoroughly with methanol or acetone; if there is still residual odor, boil it in boiling water, wash it with clean water, and then deodorize it in an activated carbon box for storage; d) Separate the inner and outer tubes of the syringe and put them into an odor-free room to fully dry; e) Wrap the dried syringe with odor-free paper that does not absorb odor and put it into the odor detection room. A3.2 Sampling of combustion gas
a) Connect the hose to the sampling port of butane gas, and after ventilation for a few minutes, clamp the front end of the hose with a spring clamp; b) Connect the front end of the hose to the test gas sampling bag, replace the gas in the bag several times, fill the sampling bag with butane gas, remove the hose, and plug the sampling bag with a brick rubber plug for gas chromatograph. A4 Measurement operation
a) As repaired A1. Insert the syringe needle into the silicone rubber plug on the mouth of the sampling bag filled with butane gas, extract butane gas, and drain it to the full. Repeat several times to extract a certain amount of butane gas. 776
GB16692
A Silicon rubber plug for gas chromatograph; B Gas sampling syringe Figure A1 Sampling of butane gas
b) The dilution operation of butane gas is shown in Figure A2 and is performed by two people. First, insert the sampling syringe needle containing butane gas into the front hole of the dilution syringe, and then one person pulls the syringe piston to inhale clean air. At the same time, another person pushes the sampling syringe to suck the lower butane gas into the dilution syringe. During operation, be careful not to let the tested butane gas leak out from the dilution syringe. A Dilution syringe 8 Injection needle: "Sampling syringe Figure A2 Dilution operation of the tested butane gas
() When the gas volume in the syringe reaches 100ml or 200ml, the concentration of butane gas in the syringe is relatively high. When further dilution is required, place the syringe for about 15 minutes to allow it to diffuse evenly. Then discharge part of the gas and inhale clean air. Repeat this operation until the required dilution multiple is reached. Cover the syringe cap and place it for 15 minutes to allow it to diffuse evenly to form a butane gas sample for testing. d) Align the front end of the dilution syringe with the center line of the odor detection hole on the panel, gently push out all the test butane sample, let people inhale it naturally, and smell the gas for odor.
e) Replace the used dilution syringe with clean air until the odor is removed. If the absence of odor cannot be guaranteed, replace it with a spare syringe. f) Change different dilution multiples and repeat steps a) and d). 7771 Type inspection
9.1.1 Type inspection shall be conducted in any of the following cases: a) identification of new products, transfer of old products; b) change of design, process or material; c) resumption of production after suspension for 6 months; d) after continuous production of 100,000 pieces;
e) after continuous production for 6 months;
1) when there is a significant difference between the results of the final inspection and the last type inspection; g) when the national quality supervision agency proposes to conduct type inspection. 9.1.2 Inspection items and classification of non-conformities
Inspection items shall be those specified in Chapters 4, 5, 6, 7 and 10 of this standard. Non-conformities shall be classified as follows:
Class A non-conformities:
a) air tightness;
b) dimensions (except volume);
c) markings.
Class B unqualified items:
a) pressure resistance;
b) filling volume;
c) volume.
Class C unqualified items:
All items except Class A and Class B.
9.1.3 Sampling
According to GB2829, a single sampling plan with discrimination level 1 is selected. Unqualified quality level:
A-type project: RQL-6.5
B-type project: RQI.=15
(Type project: RQI.=30
9.1.4 Judgment rules
According to the sampling plan specified in 9.1.3, all are qualified, and the type inspection represented by the type inspection is judged to be qualified. Otherwise, it is 773
unqualified.
9.2 Factory inspection
GB16692—1996
The number of shipments is a batch, and one gas cylinder is a unit product. The airtightness should be checked one by one. Only inspection, but reasonable random inspection is allowed. 9.2.1 Random inspection items, non-conforming categories, qualified quality levels and inspection levels shall be as specified in Table 4. Table 4
Inspection items
Air tightness
Total height of gas cylinder
Outer diameter of upper edge of cylinder
Outer diameter of lower edge of cylinder
Outer diameter of cylinder
Valve stem diameter
Valve stem length
Pressure resistance
Filling volume
Non-conforming categories
Class A non-conforming
Class A non-conforming
Class A non-conforming
Class A unqualified
Class A unqualified
Class A unqualified
Class B unqualified
Class B unqualified
Class B unqualified
9.2.2 Sampling
According to G132828, select a sampling plan. 9.2.3 Judgment rules
Quality level AQI
Inspection level
According to the sampling plan determined in 9.2.2, all are qualified, and the inspection batch is judged to be qualified batch by batch. Otherwise, it is unqualified. Unqualified batches are allowed to be checked for unqualified items. 100% inspection, reject the unqualified products, and re-inspect according to the above relevant clauses. Marking
The following contents should be marked on the gas cylinder in a way that is not easy to erase: a) Alkane:
b) Gas cylinder storage method;
) Gas cylinder use range;
d) Manufacturer name;
e) Gas cylinder installation method;
f) One-time use, empty bottles should not be thrown into the fire; g) Product model or mark;
h) Manufacturing date;
i) Rated filling volume;
j) Empty bottle quality:
k) Implementation standard.
Quality certificate
Each packaging box should have a certificate with the seal of the inspection agency representative. 77.1
Packaging, transportation, storage
GB16692-1996
12.1 Gas cylinders must be packed in boxes to ensure that they are not damaged during transportation and storage. 12.2 Handle with care during transportation to prevent bumps and heavy objects from crushing them. 12.3 Gas cylinders should be stored in a cool place, away from fire sources and prevent exposure to the sun. 775
A1 Summary of determination methods
GB16692-.1996
Appendix A
(Standard Appendix)
Determination of the odor of butane gas
Use a syringe to extract a certain amount of butane gas, inject it into the syringe used for dilution, mix it with the air in the syringe to form a test gas, and use the inspection door outside the panel to determine whether the butane gas has an odor. Calculate the detection dilution multiple of butane gas from the dilution multiple of the test gas A2 Devices and Instruments
a) Butane gas sampling bag. Made of plastic or rubber, with a capacity of 3 to 20L, butane gas has low air permeability, low odor absorption, and is a special bag without odor:
b) Butane gas sampling syringe, in accordance with (B1959; c) Dilution syringe. In accordance with (GB1959, scale error less than 5%, capacity 200ml. Front end inner diameter 5m m, impermeable to butane gas, low absorption of odor. No odor;
d) Hose. Low permeability and adsorption of butane gas, no odor; e) Syringe luggage box, with sealing structure;) Active magnet;
g) No paper;
h) Cleaning agent;
i) Syringe rubber cover;
j) Methanol and ketone;
k) Silicone rubber plug for gas chromatograph;
1) Spring cool.
A3 Preparation before operation
A3.1 Cleaning of syringes
a) Clean new syringes with water;
b) Rinse the syringe used for dilution with clean water first, then with a cleaning agent, and finally with clean water; c) For sampling syringes of butane gas with high concentration of odor pollution, first clean it with a cleaning agent and then clean it thoroughly with methanol or acetone; if there is still residual odor, boil it in boiling water, wash it with clean water, and then deodorize it in an activated carbon box for storage; d) Separate the inner and outer tubes of the syringe and put them into an odor-free room to fully dry; e) Wrap the dried syringe with odor-free paper that does not absorb odor and put it into the odor detection room. A3.2 Sampling of combustion gas
a) Connect the hose to the sampling port of butane gas, and after ventilation for a few minutes, clamp the front end of the hose with a spring clamp; b) Connect the front end of the hose to the test gas sampling bag, replace the gas in the bag several times, fill the sampling bag with butane gas, remove the hose, and plug the sampling bag with a brick rubber plug for gas chromatograph. A4 Measurement operation
a) As repaired A1. Insert the syringe needle into the silicone rubber plug on the mouth of the sampling bag filled with butane gas, extract butane gas, and drain it to the full. Repeat several times to extract a certain amount of butane gas. 776
GB16692
A Silicon rubber plug for gas chromatograph; B Gas sampling syringe Figure A1 Sampling of butane gas
b) The dilution operation of butane gas is shown in Figure A2 and is performed by two people. First, insert the sampling syringe needle containing butane gas into the front hole of the dilution syringe, and then one person pulls the syringe piston to inhale clean air. At the same time, another person pushes the sampling syringe to suck the lower butane gas into the dilution syringe. During operation, be careful not to let the tested butane gas leak out from the dilution syringe. A Dilution syringe 8 Injection needle: "Sampling syringe Figure A2 Dilution operation of the tested butane gas
() When the gas volume in the syringe reaches 100ml or 200ml, the concentration of butane gas in the syringe is relatively high. When further dilution is required, place the syringe for about 15 minutes to allow it to diffuse evenly. Then discharge part of the gas and inhale clean air. Repeat this operation until the required dilution multiple is reached. Cover the syringe cap and place it for 15 minutes to allow it to diffuse evenly to form a butane gas sample for testing. d) Align the front end of the dilution syringe with the center line of the odor detection hole on the panel, gently push out all the test butane sample, let people inhale it naturally, and smell the gas for odor.
e) Replace the used dilution syringe with clean air until the odor is removed. If the absence of odor cannot be guaranteed, replace it with a spare syringe. f) Change different dilution multiples and repeat steps a) and d). 7772 Inspection items and classification of non-conformities
Inspection items shall be those specified in Chapters 4, 5, 6, 7 and 10 of this standard. Non-conformities shall be classified as follows:
Class A non-conformities:
a) Air tightness;
b) Dimensions (except volume);
c) Marking.
Class B non-conformities:
a) Pressure resistance;
b) Filling volume;
c) Volume.
Class C non-conformities:
All items except Class A and Class B.
9.1.3 Sampling
According to GB2829, a single sampling plan with discrimination level 1 shall be selected. Unqualified quality level:
A-type project: RQL-6.5
B-type project: RQI.=15
(Type project: RQI.=30
9.1.4 Judgment rules
According to the sampling plan specified in 9.1.3, all are qualified, and the type inspection represented by the type inspection is judged to be qualified. Otherwise, it is 773
unqualified.
9.2 Factory inspection
GB16692—1996
The number of shipments is a batch, and one gas cylinder is a unit product. The airtightness should be checked one by one. Only inspection, but reasonable random inspection is allowed. 9.2.1 Random inspection items, non-conforming categories, qualified quality levels and inspection levels shall be as specified in Table 4. Table 4
Inspection items
Air tightness
Total height of gas cylinder
Outer diameter of upper edge of cylinder
Outer diameter of lower edge of cylinder
Outer diameter of cylinder
Valve stem diameter
Valve stem length
Pressure resistance
Filling volume
Non-conforming categories
Class A non-conforming
Class A non-conforming
Class A non-conforming
Class A unqualified
Class A unqualified
Class A unqualified
Class B unqualified
Class B unqualified
Class B unqualified
9.2.2 Sampling
According to G132828, select a sampling plan. 9.2.3 Judgment rules
Quality level AQI
Inspection level
According to the sampling plan determined in 9.2.2, all are qualified, and the inspection batch is judged to be qualified batch by batch. Otherwise, it is unqualified. Unqualified batches are allowed to be checked for unqualified items. 100% inspection, reject the unqualified products, and re-inspect according to the above relevant clauses. Marking
The following contents should be marked on the gas cylinder in a way that is not easy to erase: a) Alkane:
b) Gas cylinder storage method;
) Gas cylinder use range;
d) Manufacturer name;
e) Gas cylinder installation method;
f) One-time use, empty bottles should not be thrown into the fire; g) Product model or mark;
h) Manufacturing date;
i) Rated filling volume;
j) Empty bottle quality:
k) Implementation standard.
Quality certificate
Each packaging box should have a certificate with the seal of the inspection agency representative. 77.1
Packaging, transportation, storage
GB16692-1996
12.1 Gas cylinders must be packed in boxes to ensure that they are not damaged during transportation and storage. 12.2 Handle with care during transportation to prevent bumps and heavy objects from crushing them. 12.3 Gas cylinders should be stored in a cool place, away from fire sources and prevent exposure to the sun. 775
A1 Summary of determination methods
GB16692-.1996
Appendix A
(Standard Appendix)
Determination of the odor of butane gas
Use a syringe to extract a certain amount of butane gas, inject it into the syringe used for dilution, mix it with the air in the syringe to form a test gas, and use the inspection door outside the panel to determine whether the butane gas has an odor. Calculate the detection dilution multiple of butane gas from the dilution multiple of the test gas A2 Devices and Instruments
a) Butane gas sampling bag. Made of plastic or rubber, with a capacity of 3 to 20L, butane gas has low air permeability, low odor absorption, and is a special bag without odor:
b) Butane gas sampling syringe, in accordance with (B1959; c) Dilution syringe. In accordance with (GB1959, scale error less than 5%, capacity 200ml. Front end inner diameter 5m m, impermeable to butane gas, low absorption of odor. No odor;
d) Hose. Low permeability and adsorption of butane gas, no odor; e) Syringe luggage box, with sealing structure;) Active magnet;
g) No paper;
h) Cleaning agent;
i) Syringe rubber cover;
j) Methanol and ketone;
k) Silicone rubber plug for gas chromatograph;
1) Spring cool.
A3 Preparation before operation
A3.1 Cleaning of syringes
a) Clean new syringes with water;
b) Rinse the syringe used for dilution with clean water first, then with a cleaning agent, and finally with clean water; c) For sampling syringes of butane gas with high concentration of odor pollution, first clean it with a cleaning agent and then clean it thoroughly with methanol or acetone; if there is still residual odor, boil it in boiling water, wash it with clean water, and then deodorize it in an activated carbon box for storage; d) Separate the inner and outer tubes of the syringe and put them into an odor-free room to fully dry; e) Wrap the dried syringe with odor-free paper that does not absorb odor and put it into the odor detection room. A3.2 Sampling of combustion gas
a) Connect the hose to the sampling port of butane gas, and after ventilation for a few minutes, clamp the front end of the hose with a spring clamp; b) Connect the front end of the hose to the test gas sampling bag, replace the gas in the bag several times, fill the sampling bag with butane gas, remove the hose, and plug the sampling bag with a brick rubber plug for gas chromatograph. A4 Measurement operation
a) As repaired A1. Insert the syringe needle into the silicone rubber plug on the mouth of the sampling bag filled with butane gas, extract butane gas, and drain it to the full. Repeat several times to extract a certain amount of butane gas. 776
GB16692
A Silicon rubber plug for gas chromatograph; B Gas sampling syringe Figure A1 Sampling of butane gas
b) The dilution operation of butane gas is shown in Figure A2 and is performed by two people. First, insert the sampling syringe needle containing butane gas into the front hole of the dilution syringe, and then one person pulls the syringe piston to inhale clean air. At the same time, another person pushes the sampling syringe to suck the lower butane gas into the dilution syringe. During operation, be careful not to let the tested butane gas leak out from the dilution syringe. A Dilution syringe 8 Injection needle: "Sampling syringe Figure A2 Dilution operation of the tested butane gas
() When the gas volume in the syringe reaches 100ml or 200ml, the concentration of butane gas in the syringe is relatively high. When further dilution is required, place the syringe for about 15 minutes to allow it to diffuse evenly. Then discharge part of the gas and inhale clean air. Repeat this operation until the required dilution multiple is reached. Cover the syringe cap and place it for 15 minutes to allow it to diffuse evenly to form a butane gas sample for testing. d) Align the front end of the dilution syringe with the center line of the odor detection hole on the panel, gently push out all the test butane sample, let people inhale it naturally, and smell the gas for odor.
e) Replace the used dilution syringe with clean air until the odor is removed. If the absence of odor cannot be guaranteed, replace it with a spare syringe. f) Change different dilution multiples and repeat steps a) and d). 7772 Inspection items and classification of non-conformities
Inspection items shall be those specified in Chapters 4, 5, 6, 7 and 10 of this standard. Non-conformities shall be classified as follows:
Class A non-conformities:
a) Air tightness;
b) Dimensions (except volume);
c) Marking.
Class B non-conformities:
a) Pressure resistance;
b) Filling volume;
c) Volume.
Class C non-conformities:
All items except Class A and Class B.
9.1.3 Sampling
According to GB2829, a single sampling plan with discrimination level 1 shall be selected. Unqualified quality level:
A-type project: RQL-6.5
B-type project: RQI.=15
(Type project: RQI.=30
9.1.4 Judgment rules
According to the sampling plan specified in 9.1.3, all are qualified, and the type inspection represented by the type inspection is judged to be qualified. Otherwise, it is 773
unqualified.
9.2 Factory inspection
GB16692—1996
The number of shipments is a batch, and one gas cylinder is a unit product. The airtightness should be checked one by one. Only inspection, but reasonable random inspection is allowed. 9.2.1 Random inspection items, non-conforming categories, qualified quality levels and inspection levels shall be as specified in Table 4. Table 4
Inspection items
Air tightness
Total height of gas cylinder
Outer diameter of upper edge of cylinder
Outer diameter of lower edge of cylinder
Outer diameter of cylinder
Valve stem diameter
Valve stem length
Pressure resistance
Filling volume
Non-conforming categories
Class A non-conforming
Class A non-conforming
Class A non-conforming
Class A unqualified
Class A unqualified
Class A unqualified
Class B unqualified
Class B unqualified
Class B unqualified
9.2.2 Sampling
According to G132828, select a sampling plan. 9.2.3 Judgment rules
Quality level AQI
Inspection level
According to the sampling plan determined in 9.2.2, all are qualified, and the inspection batch is judged to be qualified batch by batch. Otherwise, it is unqualified. Unqualified batches are allowed to be checked for unqualified items. 100% inspection, reject the unqualified products, and re-inspect according to the above relevant clauses. Marking
The following contents should be marked on the gas cylinder in a way that is not easy to erase: a) Alkane:
b) Gas cylinder storage method;
) Gas cylinder use range;
d) Manufacturer name;
e) Gas cylinder installation method;
f) One-time use, empty bottles should not be thrown into the fire; g) Product model or mark;
h) Manufacturing date;
i) Rated filling volume;
j) Empty bottle quality:
k) Implementation standard.
Quality certificate
Each packaging box should have a certificate with the seal of the inspection agency representative. 77.1
Packaging, transportation, storage
GB16692-1996
12.1 Gas cylinders must be packed in boxes to ensure that they are not damaged during transportation and storage. 12.2 Handle with care during transportation to prevent bumps and heavy objects from crushing them. 12.3 Gas cylinders should be stored in a cool place, away from fire sources and prevent exposure to the sun. 775
A1 Summary of determination methods
GB16692-.1996
Appendix A
(Standard Appendix)
Determination of the odor of butane gas
Use a syringe to extract a certain amount of butane gas, inject it into the syringe used for dilution, mix it with the air in the syringe to form a test gas, and use the inspection door outside the panel to determine whether the butane gas has an odor. Calculate the detection dilution multiple of butane gas from the dilution multiple of the test gas A2 Devices and Instruments
a) Butane gas sampling bag. Made of plastic or rubber, with a capacity of 3 to 20L, butane gas has low air permeability, low odor absorption, and is a special bag without odor:
b) Butane gas sampling syringe, in accordance with (B1959; c) Dilution syringe. In accordance with (GB1959, scale error less than 5%, capacity 200ml. Front end inner diameter 5m m, impermeable to butane gas, low absorption of odor. No odor;
d) Hose. Low permeability and adsorption of butane gas, no odor; e) Syringe luggage box, with sealing structure;) Active magnet;
g) No paper;
h) Cleaning agent;
i) Syringe rubber cover;
j) Methanol and ketone;
k) Silicone rubber plug for gas chromatograph;
1) Spring cool.
A3 Preparation before operation
A3.1 Cleaning of syringes
a) Clean new syringes with water;
b) Rinse the syringe used for dilution with clean water first, then with a cleaning agent, and finally with clean water; c) For sampling syringes of butane gas with high concentration of odor pollution, first clean it with a cleaning agent and then clean it thoroughly with methanol or acetone; if there is still residual odor, boil it in boiling water, wash it with clean water, and then deodorize it in an activated carbon box for storage; d) Separate the inner and outer tubes of the syringe and put them into an odor-free room to fully dry; e) Wrap the dried syringe with odor-free paper that does not absorb odor and put it into the odor detection room. A3.2 Sampling of combustion gas
a) Connect the hose to the sampling port of butane gas, and after ventilation for a few minutes, clamp the front end of the hose with a spring clamp; b) Connect the front end of the hose to the test gas sampling bag, replace the gas in the bag several times, fill the sampling bag with butane gas, remove the hose, and plug the sampling bag with a brick rubber plug for gas chromatograph. A4 Measurement operation
a) As repaired A1. Insert the syringe needle into the silicone rubber plug on the mouth of the sampling bag filled with butane gas, extract butane gas, and drain it to the full. Repeat several times to extract a certain amount of butane gas. 776
GB16692
A Silicon rubber plug for gas chromatograph; B Gas sampling syringe Figure A1 Sampling of butane gas
b) The dilution operation of butane gas is shown in Figure A2 and is performed by two people. First, insert the sampling syringe needle containing butane gas into the front hole of the dilution syringe, and then one person pulls the syringe piston to inhale clean air. At the same time, another person pushes the sampling syringe to suck the lower butane gas into the dilution syringe. During operation, be careful not to let the tested butane gas leak out from the dilution syringe. A Dilution syringe 8 Injection needle: "Sampling syringe Figure A2 Dilution operation of the tested butane gas
() When the gas volume in the syringe reaches 100ml or 200ml, the concentration of butane gas in the syringe is relatively high. When further dilution is required, place the syringe for about 15 minutes to allow it to diffuse evenly. Then discharge part of the gas and inhale clean air. Repeat this operation until the required dilution multiple is reached. Cover the syringe cap and place it for 15 minutes to allow it to diffuse evenly to form a butane gas sample for testing. d) Align the front end of the dilution syringe with the center line of the odor detection hole on the panel, gently push out all the test butane sample, let people inhale it naturally, and smell the gas for odor.
e) Replace the used dilution syringe with clean air until the odor is removed. If the absence of odor cannot be guaranteed, replace it with a spare syringe. f) Change different dilution multiples and repeat steps a) and d). 7771 The sampling inspection items, non-conforming categories, qualified quality levels and inspection levels shall be as specified in Table 4 Table 4
Inspection items
Air tightness
Total height of gas cylinder
Outer diameter of upper edge of cylinder
Outer diameter of lower edge of cylinder
Outer diameter of cylinder
Valve stem diameter
Valve stem length
Pressure resistance
Filling volume
Non-conforming categories
Class A non-conforming Qualified
Class A unqualified
Class A unqualified
Class A unqualified
Class A unqualified
Class A unqualified
Class B unqualified
Class B unqualified
Class B unqualified
9.2.2 Sampling
According to G132828, select a sampling plan. 9.2.3 Judgment rules
Quality level AQI
Inspection level
According to the sampling plan determined in 9.2.2, all are qualified, and the inspection batch is judged to be qualified for batch inspection. Otherwise, it is unqualified. Unqualified batches are allowed to inspect 100% of the unqualified items, remove the unqualified products, and re-inspect them according to the above relevant terms. Marking
The following contents shall be marked on the gas cylinder in a way that is not easy to erase: a) Alkane gas:
b) How to store the gas cylinder;
) Scope of use of the gas cylinder;
d) Name of the manufacturer;
e) How to install the gas cylinder;
f) One-time use, do not throw empty bottles into fire;
g) Product model or mark;
h) Date of manufacture;
i) Rated filling volume;
j) Empty bottle quality:
k) Implementation standard.
Quality certificate
Each package box shall have a certificate stamped by the representative of the inspection agency. 77.1
Packaging, transportation, storage
GB16692-1996
12.1 Gas cylinders must be packed in boxes to ensure that they are not damaged during transportation and storage. 12.2 Handle with care during transportation to prevent bumps and heavy objects from crushing them. 12.3 Gas cylinders should be stored in a cool place, away from fire sources and prevent exposure to the sun. 775
A1 Summary of determination methods
GB16692-.1996
Appendix A
(Standard Appendix)
Determination of the odor of butane gas
Use a syringe to extract a certain amount of butane gas, inject it into the syringe used for dilution, mix it with the air in the syringe to form a test gas, and use the inspection door outside the panel to determine whether the butane gas has an odor. Calculate the detection dilution multiple of butane gas from the dilution multiple of the test gas A2 Devices and Instruments
a) Butane gas sampling bag. Made of plastic or rubber, with a capacity of 3 to 20L, butane gas has low air permeability, low odor absorption, and is a special bag without odor:
b) Butane gas sampling syringe, in accordance with (B1959; c) Dilution syringe. In accordance with (GB1959, scale error less than 5%, capacity 200ml. Front end inner diameter 5m m, impermeable to butane gas, low absorption of odor. No odor;
d) Hose. Low permeability and adsorption of butane gas, no odor; e) Syringe luggage box, with sealing structure;) Active magnet;
g) No paper;
h) Cleaning agent;
i) Syringe rubber cover;
j) Methanol and ketone;
k) Silicone rubber plug for gas chromatograph;
1) Spring cool.
A3 Preparation before operation
A3.1 Cleaning of syringes
a) Clean new syringes with water;
b) Rinse the syringe used for dilution with clean water first, then with a cleaning agent, and finally with clean water; c) For sampling syringes of butane gas with high concentration of odor pollution, first clean it with a cleaning agent and then clean it thoroughly with methanol or acetone; if there is still residual odor, boil it in boiling water, wash it with clean water, and then deodorize it in an activated carbon box for storage; d) Separate the inner and outer tubes of the syringe and put them into an odor-free room to fully dry; e) Wrap the dried syringe with odor-free paper that does not absorb odor and put it into the odor detection room. A3.2 Sampling of combustion gas
a) Connect the hose to the sampling port of butane gas, and after ventilation for a few minutes, clamp the front end of the hose with a spring clamp; b) Connect the front end of the hose to the test gas sampling bag, replace the gas in the bag several times, fill the sampling bag with butane gas, remove the hose, and plug the sampling bag with a brick rubber plug for gas chromatograph. A4 Measurement operation
a) As repaired A1. Insert the syringe needle into the silicone rubber plug on the mouth of the sampling bag filled with butane gas, extract butane gas, and drain it to the full. Repeat several times to extract a certain amount of butane gas. 776
GB16692
A Silicon rubber plug for gas chromatograph; B Gas sampling syringe Figure A1 Sampling of butane gas
b) The dilution operation of butane gas is shown in Figure A2 and is performed by two people. First, insert the sampling syringe needle containing butane gas into the front hole of the dilution syringe, and then one person pulls the syringe piston to inhale clean air. At the same time, another person pushes the sampling syringe to suck the lower butane gas into the dilution syringe. During operation, be careful not to let the tested butane gas leak out from the dilution syringe. A Dilution syringe 8 Injection needle: "Sampling syringe Figure A2 Dilution operation of the tested butane gas
() When the gas volume in the syringe reaches 100ml or 200ml, the concentration of butane gas in the syringe is relatively high. When further dilution is required, place the syringe for about 15 minutes to allow it to diffuse evenly. Then discharge part of the gas and inhale clean air. Repeat this operation until the required dilution multiple is reached. Cover the syringe cap and place it for 15 minutes to allow it to diffuse evenly to form a butane gas sample for testing. d) Align the front end of the dilution syringe with the center line of the odor detection hole on the panel, gently push out all the test butane sample, let people inhale it naturally, and smell the gas for odor.
e) Replace the used dilution syringe with clean air until the odor is removed. If the absence of odor cannot be guaranteed, replace it with a spare syringe. f) Change different dilution multiples and repeat steps a) and d). 7771 The sampling inspection items, non-conforming categories, qualified quality levels and inspection levels shall be as specified in Table 4 Table 4
Inspection items
Air tightness
Total height of gas cylinder
Outer diameter of upper edge of cylinder
Outer diameter of lower edge of cylinder
Outer diameter of cylinder
Valve stem diameter
Valve stem length
Pressure resistance
Filling volume
Non-conforming categories
Class A non-conforming Qualified
Class A unqualified
Class A unqualified
Class A unqualified
Class A unqualified
Class A unqualified
Class B unqualified
Class B unqualified
Class B unqualified
9.2.2 Sampling
According to G132828, select a sampling plan. 9.2.3 Judgment rules
Quality level AQI
Inspection level
According to the sampling plan determined in 9.2.2, all are qualified, and the inspection batch is judged to be qualified for batch inspection. Otherwise, it is unqualified. Unqualified batches are allowed to inspect 100% of the unqualified items, remove the unqualified products, and re-inspect them according to the above relevant terms. Marking
The following contents shall be marked on the gas cylinder in a way that is not easy to erase: a) Alkane gas:
b) How to store the gas cylinder;
) Scope of use of the gas cylinder;
d) Name of the manufacturer;
e) How to install the gas cylinder;
f) One-time use, do not throw empty bottles into fire;
g) Product model or mark;
h) Date of manufacture;
i) Rated filling volume;
j) Empty bottle quality:
k) Implementation standard.
Quality certificate
Each package box shall have a certificate stamped by the representative of the inspection agency. 77.1
Packaging, transportation, storage
GB16692-1996
12.1 Gas cylinders must be packed in boxes to ensure that they are not damaged during transportation and storage. 12.2 Handle with care during transportation to prevent bumps and heavy objects from crushing them. 12.3 Gas cylinders should be stored in a cool place, away from fire sources and prevent exposure to the sun. 775
A1 Summary of determination methods
GB16692-.1996
Appendix A
(Standard Appendix)
Determination of the odor of butane gas
Use a syringe to extract a certain amount of butane gas, inject it into the syringe used for dilution, mix it with the air in the syringe to form a test gas, and use the inspection door outside the panel to determine whether the butane gas has an odor. Calculate the detection dilution multiple of butane gas from the dilution multiple of the test gas A2 Devices and Instruments
a) Butane gas sampling bag. Made of plastic or rubber, with a capacity of 3 to 20L, butane gas has low air permeability, low odor absorption, and is a special bag without odor:
b) Butane gas sampling syringe, in accordance with (B1959; c) Dilution syringe. In accordance with (GB1959, scale error less than 5%, capacity 200ml. Front end inner diameter 5m m, impermeable to butane gas, low absorption of odor. No odor;
d) Hose. Low permeability and adsorption of butane gas, no odor; e) Syringe luggage box, with sealing structure;) Active magnet;
g) No paper;
h) Cleaning agent;
i) Syringe rubber cover;
j) Methanol and ketone;
k) Silicone rubber plug for gas chromatograph;
1) Spring cool.
A3 Preparation before operation
A3.1 Cleaning of syringes
a) Clean new syringes with water;
b) Rinse the syringe used for dilution with clean water first, then with a cleaning agent, and finally with clean water; c) For sampling syringes of butane gas with high concentration of odor pollution, first clean it with a cleaning agent and then clean it thoroughly with methanol or acetone; if there is still residual odor, boil it in boiling water, wash it with clean water, and then deodorize it in an activated carbon box for storage; d) Separate the inner and outer tubes of the syringe and put them into an odor-free room to fully dry; e) Wrap the dried syringe with odor-free paper that does not absorb odor and put it into the odor detection room. A3.2 Sampling of combustion gas
a) Connect the hose to the sampling port of butane gas, and after ventilation for a few minutes, clamp the front end of the hose with a spring clamp; b) Connect the front end of the hose to the test gas sampling bag, replace the gas in the bag several times, fill the sampling bag with butane gas, remove the hose, and plug the sampling bag with a brick rubber plug for gas chromatograph. A4 Measurement operation
a) As repaired A1. Insert the syringe needle into the silicone rubber plug on the mouth of the sampling bag filled with butane gas, extract butane gas, and drain it to the full. Repeat several times to extract a certain amount of butane gas. 776
GB16692
A Silicon rubber plug for gas chromatograph; B Gas sampling syringe Figure A1 Sampling of butane gas
b) The dilution operation of butane gas is shown in Figure A2 and is performed by two people. First, insert the sampling syringe needle containing butane gas into the front hole of the dilution syringe, and then one person pulls the syringe piston to inhale clean air. At the same time, another person pushes the sampling syringe to suck the lower butane gas into the dilution syringe. During operation, be careful not to let the tested butane gas leak out from the dilution syringe. A Dilution syringe 8 Injection needle: "Sampling syringe Figure A2 Dilution operation of the tested butane gas
() When the gas volume in the syringe reaches 100ml or 200ml, the concentration of butane gas in the syringe is relatively high. When further dilution is required, place the syringe for about 15 minutes to allow it to diffuse evenly. Then discharge part of the gas and inhale clean air. Repeat this operation until the required dilution multiple is reached. Cover the syringe cap and place it for 15 minutes to allow it to diffuse evenly to form a butane gas sample for testing. d) Align the front end of the dilution syringe with the center line of the odor detection hole on the panel, gently push out all the test butane sample, let people inhale it naturally, and smell the gas for odor.
e) Replace the used dilution syringe with clean air until the odor is removed. If the absence of odor cannot be guaranteed, replace it with a spare syringe. f) Change different dilution multiples and repeat steps a) and d). 777The inner diameter of the front end is 5mm, impermeable to butane gas, and has low absorption of odor. No odor;
d) Hose. It should have low permeability and adsorption of butane gas, and no odor; e) Syringe luggage box, with a sealing structure;) Active magnet;
g) No paper;
h) Cleaning agent;
i) Syringe rubber cover;
j) Methanol and ketone;
k) Silicone rubber plug for gas chromatograph;
1) Spring cool.
A3 Preparation before operation
A3.1 Cleaning of syringes
a) Clean new syringes with water;
b) Rinse the syringe used for dilution with clean water first, then with a cleaning agent, and finally with clean water; c) For sampling syringes of butane gas with high concentration of odor pollution, first clean it with a cleaning agent and then clean it thoroughly with methanol or acetone; if there is still residual odor, boil it in boiling water, wash it with clean water, and then deodorize it in an activated carbon box for storage; d) Separate the inner and outer tubes of the syringe and put them into an odor-free room to fully dry; e) Wrap the dried syringe with odor-free paper that does not absorb odor and put it into the odor detection room. A3.2 Sampling of combustion gas
a) Connect the hose to the sampling port of butane gas, and after ventilation for a few minutes, clamp the front end of the hose with a spring clamp; b) Connect the front end of the hose to the test gas sampling bag, replace the gas in the bag several times, fill the sampling bag with butane gas, remove the hose, and plug the sampling bag with a brick rubber plug for gas chromatograph. A4 Measurement operation
a) As repaired A1. Insert the syringe needle into the silicone rubber plug on the mouth of the sampling bag filled with butane gas, extract butane gas, and drain it to the full. Repeat several times to extract a certain amount of butane gas. 776
GB16692
A Silicon rubber plug for gas chromatograph; B Gas sampling syringe Figure A1 Sampling of butane gas
b) The dilution operation of
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.