SY 6277-1997 Regulations on hydrogen sulfide monitoring and personal safety protection in sour oil and gas fields
Some standard content:
Beitai No. 476—1097
Petroleum and Natural Gas Industry Standard of the People's Republic of China SY 6277 -1997
Rules of hydrogen sulfide monitoring and protecting for operators in pctrolcum and nature gas field with hydrogcn sulfide1997--07:17 Issued
China National Petroleum Corporation
199801-01 Implementation
SY 6277. 1997
Non-use standard
Staff training:…
5 Hydrogen sulfide monitoring and carbon dioxide monitoring
6 Personal safety equipment and protection
AAPPLS+PI+IIPP
? Classification, treatment and contraindications of acute oxygen stress in vehicles A [Appendix A]
Appendix B (This is an appendix for instructions
Chemical characteristics and toxicological effects
Air consumption under different labor intensities
SY62771997
This standard is formulated on the basis of domestic rich practical experience and reference to foreign advanced experience. Its purpose is to formulate a complete set of detection and protection methods for sulfur-containing oil and gas to protect the safety of operators, so that the technical management and escape in the production of sulfur-containing oil and gas can be further standardized. This standard stipulates the following requirements in the absence of Monitoring and research on hydrogen sulfide in different working environments: technical requirements for personal safety protection, total gas content and production process should be fully tested before testing, the design does not include the full safety production management procedures, 3. Adapt to the implementation of other relevant safety production standards and regulations. Appendix A of this standard: Appendix B is a reminder of the appendix. This standard is a non-important and foreign standard for oil and gas industry. Drafting unit: Sichuan Petroleum Administration Bureau Survey and Design Institute: Shi Sheng Note Drafting person: Wang Yuzuo T Signature
1 Scope
China Petroleum and Natural Gas Industry Standard SY 6277—1997
Regulations on lydrugen sulfide piouitoriug and prolecring far operating petrakeum and nature gas field with hydrogeit This standard specifies the basic standards for the safety of personnel during the mining and production of natural gas, including the standard for the safe production of natural gas and petroleum gas in the soil. 2 Referenced standards
The following standards contain the following provisions: All the provisions included in this standard are valid at the time of publication of this standard. All standards will be revised: The following standards should be used by all parties concerned in applying this standard. The possibility of the latest version. G10 Occupational emergency performance of the rat in the diagnosis standard and the original! 535087-9 sulfur-containing molten gas daily safety station and practice 3 Definitions
This standard applies to the following definitions
Jinwan oil and gas: oil and gas fields containing hydrogen sulfide and water, 4 people responsible for the standard test
in the end of the oxygen-containing topology training of the professional personnel should be replaced by training, after the name of the certification before the job 4.1 training institutions
breeding training dead body oxygen sulfide The training materials should include the following contents: 1. The training materials should include the following contents: 2. The training materials should include the following contents: 3. The training materials should include the following contents: 4. The training materials should include the following contents: 5. The training materials should include the following contents: 6. The training materials should include the following contents: 7. The training materials should include the following contents: 8. The training materials should include the following contents: 9. The training materials should include the following contents: 10. The training materials should include the following contents: 11. The training materials should include the following contents: 12. The training materials should include the following contents: 13. The training materials should include the following contents: 14. 43. Safety management regulations for operations during work: The training time for each pair of workers shall not be less than 3. The training shall be renewed every two years. 4.4. Assessment requirements: The workers shall meet the following requirements after training: 1. Understand the various physical and chemical properties of hydrogen sulfide and its harmfulness to people and vehicles: Hydrogen sulfide is harmful to human body. According to the explanation given: 2. Be familiar with the performance of hydrogen sulfide monitor: China National Petroleum Corporation 1997-We? -17 North Slide 1998-01 Implementation
SY 6277-1997
Strongly understand the various personal safety installation and maintenance, performance, continuous work and maintenance: 1) Special knowledge of hydrogen sulfide to the environment of the enterprise to enter the rock run management word: <) in the value of the chemical leakage and personal information rate of the step, the operation of the personnel sequence will be the most self-taught and mutual reporting measures to the hydrogen sulfide monitoring position and the hydrogen sulfide monitoring
.1 The actual tester
seat adopts the fixed type nuclear type hydrogen sulfide monitor. 5.1.1 The fixed type mirror chemical service monitoring continent meeting
should pay attention to the monitoring of the oxygen liquid concentration, the application of the company's actual type hydrogen sulfide monitor, the probe type! , the number of fixed points in the gas array is determined according to the number of fixed points, the monitor probe is placed in the standard oxygen-rich area, the main chamber can be installed in the large chamber, 5.1.2 The operators are equipped with a belt-type hydrogen sulfide monitoring device in the hazardous area to measure the concentration change of hydrogen sulfide in the working area. 5.1.3 The first-level alarm value of the belt-type hydrogen sulfide monitoring device and the second-level alarm value of the monitoring device in the hazardous area should be set at 1/m/m. n
5.1.: Chemical monitoring instrument performance test
Before the chemical monitoring instrument is installed, the test points must be measured. 1.
Report t-ng/m
Working time, transmission path, 3
The source of the instrument
Table 1 Chemical driving monitoring instrument parts
1 Display
2-·154.Continuous changeable
:. Bad cough: 2 Flash
: 3 Full capacity 90%)
220V.50HL
This safety device
With the chemical current series, the main number on one page is integrated and tested carefully:! Full quantity should be:
) when the whole stop
heart is not alarm protection
5.1.5 the input and output of the hydrogen monitoring instrument
3. , change the display
small-77, continuous heart%
1.4 sea device.2 flash #
(full use lithium:
power supply or power battery
Wu'an Institute of Energy
Haihua Supervision School, the comparison should be discussed and put forward to control the whole country's standard reading of the oxygen monitoring instrument, only to request the chemical benefit, there is no Hua year control, the right to make by the national law Zou,
5.2 will be the whole operation 3. The whole chemical milk model blue thank 5.2.1 error expansion over protection
SY 6277-1997
In the process of sharing points, before the station reaches the layer containing alcohol gas, full preparations should be made for the flow ratio to the lung test. In the factory, the hydrogen sulfide monitoring probe and its replacement system should be installed with a solid installation point, and the monitoring position, alarm and pressure alarm of the hydrogen sulfide monitoring probe should be set up. The area where the gas may be discharged should be wide and equipped with marking points. The site should set up interval markings, and the new site should be at least Equipped with 4 belt-type hydrogen monoxide monitors, especially for drilling joint inspection and reporting of dynamic screening operations! 5.2.2 Oil Test Process
Hydrogen monoxide monitoring during the oil test is carried out according to the operating conditions and in accordance with the provisions of 5.2.1. 52.3 Practical preparation
The oxygen monitoring training method in the station is combined with the belt-type hydrogen monitor for easy use. In the pressure production area, gas sampling area, sewage discharge area, water supply area of each Central African sand station The city area is prone to leakage, and the child has not been "equipped with a will, and a fixed deep head, a positive probe, and a report to the operator near the machine. Some other portable sulfide monitoring records are provided. When entering the area, pay attention to whether there is a report with a fixed multi-point value tester and receive the instrument room. The signal is also sent through the cable in the instrument room. The speed of transmission from the position table to the dangerous area
5.2.4 is not a net ratio!
Big signature gas clean! Chlorine monitoring The monitoring points are set up in the desulfurization, sulfur recovery, venting and sewage storage areas, and the monitoring method is implemented according to the main control 1.
5.2.5 The monitoring of hydrogen in the gas effluent treatment and return station is carried out according to the provisions of 5.2.3. 6 Personal safety protection equipment and protective equipment
In the process of filling and filling, if a leakage accident occurs, the following protective equipment should be used immediately: 6.1 Protective equipment
6.11 Positive air breathing apparatus and equipment
In the case of high concentration or low concentration of chemicals, positive pressure respirators should be used. When multiple people work in a solid environment for a long time, a positive pressure air supply system should be established. The total air pressure of the air supply system should not be less than 50L/m3 per person, and the air volume should not be calculated according to the table under the working conditions!
The positive pressure air breathing apparatus or the air supply system with external air system can be used together with the air system. The air quality of the air supply system should be in accordance with the provisions of Table 2. 2. The air outlet of the respirator is the same as that of the positive pressure supply system. The air outlet of the positive pressure respirator is the same as that of the positive pressure supply system. More specifically, the negative pressure respirator can be used when the flow rate is lower than 10m/m. G.2 Personal safety protection measures in hydrogen-containing environments: The following safety protection measures should be adopted when working in hydrogen-containing environments: 1) According to different working conditions, corresponding pre-hydrogenation control instruments and protective devices should be equipped, and there should be special personnel to manage them. The flow rate monitoring instruments and protective instruments should be placed in a usable state. 2) A wind vane should be set up in the working environment; the supply pipe should be located in the upwind position. 3) Warning signs should be set up in key monitoring areas. 1. When entering the key monitoring area for operation: a hydrogen mon- eter monitor and a positive-pressure air respirator shall be equipped. At least two people shall go together: one operator and one guard. 2. When the concentration reaches 10/m3, the operator shall check the leakage point and prepare protective equipment. 3. When the concentration reaches 10/m3, quickly turn on the exhaust fan to evacuate the personnel downstream. The operator shall be responsible for the protective equipment. It is prohibited to add new gas, rush to the gas station, and teach the personnel to be on alert. Find out the cause of the leakage and take measures quickly. Control the leakage and report the situation to the upper level. 4. When the concentration of hydrogen mon-eter is under control, the personnel entering the emergency point shall immediately wash their clothes and implement the emergency plan 6.7.1. : Air supply system: The operating personnel use positive pressure air with quick connection; equipped with air respirators and air outlets corresponding to the pressure of the air respirator cylinders; the respirators and compressors are managed by dedicated personnel; at least 10 sets of positive pressure air respirators and non-new air bottles (40T, 15MPa) should be prepared for rapid inflation. The safety operation requirements during the station operation shall be carried out in accordance with the provisions of Chapter 8 of 5Y5187-93. 6.2.2 Trial mooring process
During the oiling process. Each positive pressure room should be equipped with air breathing apparatus and air compressors corresponding to the pressure of air respirators and air cylinders. The respirators and compressors should be managed by a dedicated person. The station area, concave area, sewage area and other areas easily accessible to chemicals should be equipped with positive pressure air respirators, air supply systems and anti-gas oxygen with quick connectors. 6.2.3 The life saving station should be equipped with positive pressure air respirators and air compressors corresponding to the pressure of air respirators and air cylinders. The respirators and compressors should be managed by a dedicated person. The station area, concave area, sewage area and other areas easily accessible to chemicals should be equipped with positive pressure air respirators, air supply systems and anti-gas oxygen with quick connectors. 6.2.4 Personnel of natural gas purification plant
Operators must wear proper air respirators when passing through the degassing, regeneration, recovery, sewage discharge and discharge weirs of the natural gas purification plant
and personnel working in gas field water treatment and recycling stations must comply with the provisions of 6.2.3! Sulfide oxygen box classification, treatment and contraindications of acute sulfide purple set classification, treatment and contraindications shall be carried out in accordance with the provisions of GB8789 4
A1 Physical and chemical properties
SY 6277-1997
Appendix A
(Tyr's Appendix)
Chemical properties and toxicological effects
Sulfide is a flammable colorless gas with a real egg smell. The sulfide point is 1.1, the melting point is -82.0, the full temperature is -60.3, and the density is 34.C. It is easily dissolved in 1% gas at 20°C. It is suitable for petroleum solvents and crude oil. The vapor pressure is 374.5kPa at 20°C, the explosion ratio in the room is 43\455 [the auto-ignition temperature is 260°C, and the final oxidation product in the room is A2 (molecular) toxicity
oxygen is a strong component of the body, and it also has a significant effect on the body. 2.1 Acute affinity: low air quality, it can induce breathing and the body will be affected by the membrane. The symptoms are as follows: platelet deficiency, and the rate of occurrence is a point of wandering. The number of sulfides is dangerous to the human body! Table A1 Objective effects of sparse driving on human body
In the air
75~150
150-300
30K--450
?5 - 5-5
154)0~2250
Health type Effects after determination
Feelings
Feelings
Standard severity
No discomfort
Weak intensity Slightly sticky
Weak respiratory tract
Real smell within 15min
Most long to medium
Induced acute
4 -Fh There is a risk of life and death within 1-4 minutes. Within 30 minutes, the patient may be inhaled and die within 30 minutes. Chronic weakness: long-term low-information exposure can cause conjunctivitis, magnetic damage to the body, A22, SY 62774997
A2.3 Mechanism: Hydrogen sulfide can be decomposed into HS- and H2S- ions in secretion. At physiological pH, 2/3 of the total amount of HS- ions in the body is released, and about 1/3 is decomposed into hydrogen sulfide in alkaline acid (H2S1). The decomposition of hydrogen sulfide can combine with substances in tissues to form or dissolve, which has rapid corrosion. It is absorbed by the respiratory tract and causes eye and respiratory tract inhalation. Hydrogen sulfide must enter the body through breathing and is not retained in the body. When it is inflamed, it will cause systemic paralysis and neurological paralysis.
SY 62771997
(Appendix of reminder)
Air consumption under continuous labor intensity
Formal air breathing apparatus is equipped with a small high-pressure bottle (there are two types of pressure: 15MPa and 3UMPa). The use time is divided into 5m, 30m, 45m: 60m. When selecting, it should be comprehensively considered according to the working time and labor intensity.
Calculate the service life of positive pressure air breathing device according to the following formula: 1-[0/9
Wherein: service life, ain:
V-cylinder volume, L:
Gas-liquid pressure, MPa:
o-sample gas, L/min.
The amount of air consumed under different dynamic intensities is shown in Table B.
Air consumption under different dynamic intensities
Dynamic intensity change
Low intensity sliding
Two humidity
Air conditioning volume
15--23
13-- 432 Personal safety protection measures in hydrogen monoxide environment When working in various buildings and in hydrogen monoxide environments: 1) According to different working conditions, corresponding pre-hydrogenation control instruments and protective devices shall be equipped, and there shall be special personnel to manage them, so that the flow rate monitors and protective instruments are in a usable state. 2) A wind vane shall be set up in the working environment; 3) The machine for installing pipes shall be located upwind. 4) Warning signs, hydrogen monoxide detection heads, alarms and exhaust fans shall be set up in the key monitoring areas; 5) When entering the key monitoring areas for work: a hydrogen monoxide monitor and a positive pressure air respirator shall be equipped, At least two people should go together: one is the operator and the other is the guard.
When the concentration reaches 10/m3, the operating personnel should check and go to the leakage point. Protective equipment: When the concentration reaches 10/m3, quickly turn on the exhaust fan to evacuate the personnel downstream. The operator should wear protective equipment. New electric gas and coal are prohibited. Train personnel to be on alert, find out the cause of the leakage, and take measures quickly. Control the mixture and report the situation to the upper level. ) When the concentration of hydrogen gas is under control, the personnel entering the factory should immediately wash their clothes and implement the emergency plan 6.7.1 Bijing Lianmang
Station! : Air supply system: The operating personnel use positive pressure air with quick connection; equipped with air respirators and air outlets corresponding to the pressure of the air respirator cylinders; the respirators and compressors are managed by dedicated personnel; at least 10 sets of positive pressure air respirators and non-new air bottles (40T, 15MPa) should be prepared for rapid inflation. The safety operation requirements during the station operation shall be carried out in accordance with the provisions of Chapter 8 of 5Y5187-93. 6.2.2 Trial mooring process
During the oiling process. Each positive pressure room should be equipped with air breathing apparatus and air compressors corresponding to the pressure of air respirators and air cylinders. The respirators and compressors should be managed by a dedicated person. The station area, concave area, sewage area and other areas easily accessible to chemicals should be equipped with positive pressure air respirators, air supply systems and anti-gas oxygen with quick connectors. 6.2.3 The life saving station should be equipped with positive pressure air respirators and air compressors corresponding to the pressure of air respirators and air cylinders. The respirators and compressors should be managed by a dedicated person. The station area, concave area, sewage area and other areas easily accessible to chemicals should be equipped with positive pressure air respirators, air supply systems and anti-gas oxygen with quick connectors. 6.2.4 Personnel of natural gas purification plant
Operators must wear proper air respirators when passing through the degassing, regeneration, recovery, sewage discharge and discharge weirs of the natural gas purification plant
and personnel working in gas field water treatment and recycling stations must comply with the provisions of 6.2.3! Sulfide oxygen box classification, treatment and contraindications of acute sulfide purple set classification, treatment and contraindications shall be carried out in accordance with the provisions of GB8789 4
A1 Physical and chemical properties
SY 6277-1997
Appendix A
(Tyr's Appendix)
Chemical properties and toxicological effects
Sulfide is a flammable colorless gas with a real egg smell. The sulfide point is 1.1, the melting point is -82.0, the full temperature is -60.3, and the density is 34.C. It is easily dissolved in 1% gas at 20°C. It is suitable for petroleum solvents and crude oil. The vapor pressure is 374.5kPa at 20°C, the explosion ratio in the room is 43\455 [the auto-ignition temperature is 260°C, and the final oxidation product in the room is A2 (molecular) toxicity
oxygen is a strong component of the body, and it also has a significant effect on the body. 2.1 Acute affinity: low air quality, it can induce breathing and the body will be affected by the membrane. The symptoms are as follows: platelet deficiency, and the rate of occurrence is a point of wandering. The number of sulfides is dangerous to the human body! Table A1 Objective effects of sparse driving on human body
In the air
75~150
150-300
30K--450
?5 - 5-5
154)0~2250
Health type Effects after determination
Feelings
Feelings
Standard severity
No discomfort
Weak intensity Slightly sticky
Weak respiratory tract
Real smell within 15min
Most long to medium
Induced acute
4 -Fh There is a risk of life and death within 1-4 minutes. Within 30 minutes, the patient may be inhaled and die within 30 minutes. Chronic weakness: long-term low-information exposure can cause conjunctivitis, magnetic damage to the body, A22, SY 62774997
A2.3 Mechanism: Hydrogen sulfide can be decomposed into HS- and H2S- ions in secretion. At physiological pH, 2/3 of the total amount of HS- ions in the body is released, and about 1/3 is decomposed into hydrogen sulfide in alkaline acid (H2S1). The decomposition of hydrogen sulfide can combine with substances in tissues to form or dissolve, which has rapid corrosion. It is absorbed by the respiratory tract and causes eye and respiratory tract inhalation. Hydrogen sulfide must enter the body through breathing and is not retained in the body. When it is inflamed, it will cause systemic paralysis and neurological paralysis.
SY 62771997
(Appendix of reminder)
Air consumption under continuous labor intensity
Formal air breathing apparatus is equipped with a small high-pressure bottle (there are two types of pressure: 15MPa and 3UMPa). The use time is divided into 5m, 30m, 45m: 60m. When selecting, it should be comprehensively considered according to the working time and labor intensity.
Calculate the service life of positive pressure air breathing device according to the following formula: 1-[0/9
Wherein: service life, ain:
V-cylinder volume, L:
Gas-liquid pressure, MPa:
o-sample gas, L/min.
The amount of air consumed under different dynamic intensities is shown in Table B.
Air consumption under different dynamic intensities
Dynamic intensity change
Low intensity sliding
Two humidity
Air conditioning volume
15--23
13-- 432 Personal safety protection measures in hydrogen monoxide environment When working in various buildings and in hydrogen monoxide environments: 1) According to different working conditions, corresponding pre-hydrogenation control instruments and protective devices shall be equipped, and there shall be special personnel to manage them, so that the flow rate monitors and protective instruments are in a usable state. 2) A wind vane shall be set up in the working environment; 3) The machine for installing pipes shall be located upwind. 4) Warning signs, hydrogen monoxide detection heads, alarms and exhaust fans shall be set up in the key monitoring areas; 5) When entering the key monitoring areas for work: a hydrogen monoxide monitor and a positive pressure air respirator shall be equipped, At least two people should go together: one is the operator and the other is the guard.
When the concentration reaches 10/m3, the operating personnel should check and go to the leakage point. Protective equipment: When the concentration reaches 10/m3, quickly turn on the exhaust fan to evacuate the personnel downstream. The operator should wear protective equipment. New electric gas and coal are prohibited. Train personnel to be on alert, find out the cause of the leakage, and take measures quickly. Control the mixture and report the situation to the upper level. ) When the concentration of hydrogen gas is under control, the personnel entering the factory should immediately wash their clothes and implement the emergency plan 6.7.1 Bijing Lianmang
Station! : Air supply system: The operating personnel use positive pressure air with quick connection; equipped with air respirators and air outlets corresponding to the pressure of the air respirator cylinders; the respirators and compressors are managed by dedicated personnel; at least 10 sets of positive pressure air respirators and non-new air bottles (40T, 15MPa) should be prepared for rapid inflation. The safety operation requirements during the station operation shall be carried out in accordance with the provisions of Chapter 8 of 5Y5187-93. 6.2.2 Trial mooring process
During the oiling process. Each positive pressure room should be equipped with air breathing apparatus and air compressors corresponding to the pressure of air respirators and air cylinders. The respirators and compressors should be managed by a dedicated person. The station area, concave area, sewage area and other areas easily accessible to chemicals should be equipped with positive pressure air respirators, air supply systems and anti-gas oxygen with quick connectors. 6.2.3 The life saving station should be equipped with positive pressure air respirators and air compressors corresponding to the pressure of air respirators and air cylinders. The respirators and compressors should be managed by a dedicated person. The station area, concave area, sewage area and other areas easily accessible to chemicals should be equipped with positive pressure air respirators, air supply systems and anti-gas oxygen with quick connectors. 6.2.4 Personnel of natural gas purification plant
Operators must wear proper air respirators when passing through the degassing, regeneration, recovery, sewage discharge and discharge weirs of the natural gas purification plant
and personnel working in gas field water treatment and recycling stations must comply with the provisions of 6.2.3! Sulfide oxygen box classification, treatment and contraindications of acute sulfide purple set classification, treatment and contraindications shall be carried out in accordance with the provisions of GB8789 4
A1 Physical and chemical properties
SY 6277-1997
Appendix A
(Tyr's Appendix)
Chemical properties and toxicological effects
Sulfide is a flammable colorless gas with a real egg smell. The sulfide point is 1.1, the melting point is -82.0, the full temperature is -60.3, and the density is 34.C. It is easily dissolved in 1% gas at 20°C. It is suitable for petroleum solvents and crude oil. The vapor pressure is 374.5kPa at 20°C, the explosion ratio in the room is 43\455 [the auto-ignition temperature is 260°C, and the final oxidation product in the room is A2 (molecular) toxicity
oxygen is a strong component of the body, and it also has a significant effect on the body. 2.1 Acute affinity: low air quality, it can induce breathing and the body will be affected by the membrane. The symptoms are as follows: platelet deficiency, and the rate of occurrence is a point of wandering. The number of sulfides is dangerous to the human body! Table A1 Objective effects of sparse driving on human body
In the air
75~150
150-300
30K--450
?5 - 5-5
154)0~2250
Health type Effects after determination
Feelings
Feelings
Standard severity
No discomfort
Weak intensity Slightly sticky
Weak respiratory tract
Real smell within 15min
Most long to medium
Induced acute
4 -Fh There is a risk of life and death within 1-4 minutes. Within 30 minutes, the patient may be inhaled and die within 30 minutes. Chronic weakness: long-term low-information exposure can cause conjunctivitis, magnetic damage to the body, A22, SY 62774997
A2.3 Mechanism: Hydrogen sulfide can be decomposed into HS- and H2S- ions in secretion. At physiological pH, 2/3 of the total amount of HS- ions in the body is released, and about 1/3 is decomposed into hydrogen sulfide in alkaline acid (H2S1). The decomposition of hydrogen sulfide can combine with substances in tissues to form or dissolve, which has rapid corrosion. It is absorbed by the respiratory tract and causes eye and respiratory tract inhalation. Hydrogen sulfide must enter the body through breathing and is not retained in the body. When it is inflamed, it will cause systemic paralysis and neurological paralysis.
SY 62771997
(Appendix of reminder)
Air consumption under continuous labor intensity
Formal air breathing apparatus is equipped with a small high-pressure bottle (there are two types of pressure: 15MPa and 3UMPa). The use time is divided into 5m, 30m, 45m: 60m. When selecting, it should be comprehensively considered according to the working time and labor intensity.
Calculate the service life of positive pressure air breathing device according to the following formula: 1-[0/9
Wherein: service life, ain:
V-cylinder volume, L:
Gas-liquid pressure, MPa:
o-sample gas, L/min.
The amount of air consumed under different dynamic intensities is shown in Table B.
Air consumption under different dynamic intensities
Dynamic intensity change
Low intensity sliding
Two humidity
Air conditioning volume
15--23
13-- 431 Acute affinity: low air, unintentional, can induce breathing, followed by limited material, membrane stimulation, swelling, will appear in the body in a few months, symptoms of platelet deficiency rate point wandering state. Sulfide number A dangerous state to human body! Table A1 Objective effects of sparse driving on human body
In the air
75~150
150-300
30K--450
?5 - 5-5
154)0~2250
Health type Effects after determination
Feelings
Feelings
Standard severity
No discomfort
Weak intensity Slightly sticky
Weak respiratory tract
Real smell within 15min
Most long to medium
Induced acute
4 -Fh There is a risk of life and death within 1-4 minutes. Within 30 minutes, the patient may be inhaled and die within 30 minutes. Chronic weakness: long-term low-information exposure can cause conjunctivitis, magnetic damage to the body, A22, SY 62774997
A2.3 Mechanism: Hydrogen sulfide can be decomposed into HS- and H2S- ions in secretion. At physiological pH, 2/3 of the total amount of HS- ions in the body is released, and about 1/3 is decomposed into hydrogen sulfide in alkaline acid (H2S1). The decomposition of hydrogen sulfide can combine with substances in tissues to form or dissolve, which has rapid corrosion. It is absorbed by the respiratory tract and causes eye and respiratory tract inhalation. Hydrogen sulfide must enter the body through breathing and is not retained in the body. When it is inflamed, it will cause systemic paralysis and neurological paralysis.
SY 62771997
(Appendix of reminder)
Air consumption under continuous labor intensity
Formal air breathing apparatus is equipped with a small high-pressure bottle (there are two types of pressure: 15MPa and 3UMPa). The use time is divided into 5m, 30m, 45m: 60m. When selecting, it should be comprehensively considered according to the working time and labor intensity.
Calculate the service life of positive pressure air breathing device according to the following formula: 1-[0/9
Wherein: service life, ain:
V-cylinder volume, L:
Gas-liquid pressure, MPa:
o-sample gas, L/min.
The amount of air consumed under different dynamic intensities is shown in Table B.
Air consumption under different dynamic intensities
Dynamic intensity change
Low intensity sliding
Two humidity
Air conditioning volume
15--23
13-- 431 Acute affinity: low air, unintentional, can induce breathing, followed by limited material, membrane stimulation, swelling, will appear in the body in a few months, symptoms of platelet deficiency rate point wandering state. Sulfide number A dangerous state to human body! Table A1 Objective effects of sparse driving on human body
In the air
75~150
150-300
30K--450
?5 - 5-5
154)0~2250
Health type Effects after determination
Feelings
Feelings
Standard severity
No discomfort
Weak intensity Slightly sticky
Weak respiratory tract
Real smell within 15min
Most long to mediumbzxZ.net
Induced acute
4 -Fh There is a risk of life and death within 1-4 minutes. Within 30 minutes, the patient may be inhaled and die within 30 minutes. Chronic weakness: long-term low-information exposure can cause conjunctivitis, magnetic damage to the body, A22, SY 62774997
A2.3 Mechanism: Hydrogen sulfide can be decomposed into HS- and H2S- ions in secretion. At physiological pH, 2/3 of the total amount of HS- ions in the body is released, and about 1/3 is decomposed into hydrogen sulfide in alkaline acid (H2S1). The decomposition of hydrogen sulfide can combine with substances in tissues to form or dissolve, which has rapid corrosion. It is absorbed by the respiratory tract and causes eye and respiratory tract inhalation. Hydrogen sulfide must enter the body through breathing and is not retained in the body. When it is inflamed, it will cause systemic paralysis and neurological paralysis.
SY 62771997
(Appendix of reminder)
Air consumption under continuous labor intensity
Formal air breathing apparatus is equipped with a small high-pressure bottle (there are two types of pressure: 15MPa and 3UMPa). The use time is divided into 5m, 30m, 45m: 60m. When selecting, it should be comprehensively considered according to the working time and labor intensity.
Calculate the service life of positive pressure air breathing device according to the following formula: 1-[0/9
Wherein: service life, ain:
V-cylinder volume, L:
Gas-liquid pressure, MPa:
o-sample gas, L/min.
The amount of air consumed under different dynamic intensities is shown in Table B.
Air consumption under different dynamic intensities
Dynamic intensity change
Low intensity sliding
Two humidity
Air conditioning volume
15--23
13-- 43
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