Some standard content:
Machinery Industry Standard of the People's Republic of China
Guidelines for Environmental Protection of Stamping Workshops
1 Subject Content and Scope of Application
JB/T 6056--92
This standard specifies the stamping Basic concepts and requirements for workshop environmental protection. General principles and methods of environmental protection. This standard applies to stamping workshops (or factories, the same below) for metal and non-metal sheets and metal profiles. It is also applicable to the environmental protection design of newly built, renovated and expanded stamping workshops (hereinafter collectively referred to as construction projects) in industrial enterprises and the technical transformation projects of original stamping workshops (hereinafter collectively referred to as the environmental protection design of technical transformation projects). 2 Cited standards | |tt||GB 3095
Atmospheric environment quality standard
GB 3096
GB3222
Urban area environmental noise standard Huai
Urban area environmental noise measurement The best method
Stamping vehicle news safety production general purchase
GB 8176
GB 8978
Integrated sewage discharge standard
Urban regional environmental vibration standard||tt ||GB 10070
GB 10071
GBJ 4
GBJ14
GBI19
GBJ40
GBJ87
urban district city Environmental Vibration Measurement Method
Trial Standard for Emission of Industrial Three Wastes
Outdoor Drainage Design Specification
Industrial Enterprise Heating, Ventilation and Air Conditioning Design Specification for Power Machine Foundation Design Specification
L Industrial Enterprise Noise Control Design Specification
GBJ 102
GBJ122
JB3623
Industrial Circulating Water Cooling Design Specification
Industrial Enterprise Noise Measurement Specification||tt| |Forging machinery noise measurement method
ZBJ62006 Forging machinery noise limits
TJ36 industrial enterprise design hygiene standards
General provisions for mechanical equipment installation engineering and acceptance specifications T 231(.)||tt ||Mechanical equipment installation engineering and acceptance specifications Mechanical presses, air hammers, hydraulic presses, and casting equipment installation T231 (3)
3 Basic concepts and requirements
3.1 "Environmental protection" in this standard - one word The contents include the following: a. For the purpose of labor protection, protect the working environment in the workshop to meet industrial hygiene requirements and protect the health of workers; b. For the purpose of environmental protection, protect the natural environment and prevent damage and pollution, so that it can better adapt to people's work, life and the survival of natural organisms;
c. Local area environmental protection between a and b, so that it can better adapt to people's work, life and the survival of natural organisms;
c. Work and life. 3.2 Construction and technical transformation projects that have an impact on the environment must prepare and review an environmental impact report (form). When the workshop is used as a factory, the Ministry of Mechanical and Electronics Industry of the People's Republic of China approved it on 1992-05-05 and 1993-07-01. When implementing
165
JB/T6056--92
production units and comprehensive management objects, the report should have a special chapter; when the workshop serves as an independent factory , there should be a special report.
The content, format and approval requirements of the environmental impact report (form) should comply with the regulations of the relevant departments. 3.3 Environmental protection should first control the pollution and harm caused by the production process and equipment (hereinafter referred to as pollution) from the source of pollution, and replace high-pollution processes and equipment with polluting or low-pollution processes and equipment. When processes and equipment fail to meet requirements, comprehensive control measures should be taken to control pollution.
The environmental protection projects in the construction project country must implement a simultaneous system of being designed, implemented, and put into operation at the same time as the main project. 3.4 The environmental protection design of the workplace should conduct a comprehensive analysis of the production process, operating methods and treatment effects. Actively explore new processes, new methods, new materials, and new technologies in order to obtain the best treatment results. 3.5 For a small number of process equipment, when comprehensive control measures still fail to meet the specified standards, personal protective measures should be taken for the operator. 3.6 Vehicles with many large pollution sources should be located in industrial concentrated areas, and should not be located in non-polluting or less polluting areas. Pollution-free or low-pollution workshops in areas (such as residential areas) should be avoided in areas with greater pollution, and should be kept away from railways, highways and airports. 3.7 Processes and equipment that produce greater pollution, as well as certain industrial waste residues, Waste liquid, etc. Professional international or regional collaboration should be carried out to facilitate centralized treatment, reduction of pollution sources, or centralized utilization. 3.8 In addition to implementing this standard, the environmental protection of the workshop must also comply with relevant national standards and relevant local and national regulations. 4 Noise control
4.1 When the workshop noise is the main noise of the factory, the Noise Lu Radiation Plant The noise violation level in the area adjacent to the factory boundary must comply with the provisions of (B3096). When the workshop noise is not the main noise of the factory, but the noise radiating in the area adjacent to the factory boundary exceeds the municipal level (B3096), comprehensive control of the main noise should be carried out .
4.2 Noise levels in various locations in the workshop shall not exceed the relevant provisions of Article 2.0.1 of GBJ87. 4.3 The limit for workers in the workshop to be exposed to noise for 8 hours continuously shall not exceed 9(dB(A). For workshops where workers are exposed to noise for less than 8 hours a day, the noise limit is determined based on the principle of halving the actual exposure time and increasing the noise limit by 3dB (A). For example, if workers are exposed to noise for 4 hours a day, the allowable noise limit is 93dB ( A) etc. But in any case, it is not allowed to exceed 115dB(A)
4.4 Workshops that generate noise and become the main noise of the factory should be set up in residential areas with the minimum wind frequency in summer. side; the low-noise workshop should be set up on the downwind side of the local main noise source with the minimum wind frequency in summer all year round. 4.5 The general layout of the noise-generating workshop should follow the following principles: reasonable acoustic partitioning should be carried out based on functional requirements, that is, living areas and administrative areas. The office area and the production area should be arranged separately; a,
The main noise sources in the workshop should be concentrated in a corner of the factory building and stay away from areas requiring quietness inside and outside; b.
c.|| tt | Auxiliary departments such as warehouses, material yards, etc.: d.
e. In factory areas with large terrain, the workshops should be arranged at a low level. 4.6 When the noise control design standards cannot be met according to the principles of 4.5: Set up partitions. Sound barriers or necessary protective distances should be maintained between factories or buildings
4.7 The building shape, orientation, doors and windows of high-noise factories should be reasonably designed to reduce the impact of noise on the environment. 4.8 Priority is given to those without noise. Noise or low-noise equipment. 4.9 The noise limit of the press should comply with the provisions of ZBJ62006, and its measurement method should be carried out according to the relevant provisions of JB33623. 4.10 When developing no-noise or low-noise presses, measures should be taken as much as possible. The following measures are taken to reduce the noise of the press:
Use belt drive instead of gear drive;
a.
Use helical gears or herringbone gears instead of high gears, and improve the efficiency of the transmission gears. Overlap coefficient, reducing magnetic friction; h.
166
d.
e,
f.
JB/T 6056---92
Replace metal gears with polymer non-metallic gears with large internal friction materials (such as nylon or bakelite, etc.); use friction clutches instead of rigid clutches; use hydraulic transmission instead of mechanical transmission. The hydraulic control system should have a delayed unloading device; the processing accuracy and assembly quality of relatively moving parts should be improved; the flywheel and transmission system should be equipped with sound shields, etc. | |tt | 2/3 of the nominal force; h.
c.
d.
e.
Use a bevel blade or a stepped punch to punch thick and large workpieces to reduce the Blanking force: use shock absorbers or other buffering devices to extend the disappearance time of the punching force and prevent sudden loading of materials or parts, die edges or punches with lubricant, which will cause greater pressure on the nominal force and mesh. Machine: If necessary, use laser cutting or CNC flame cutting instead of punching or shearing, etc. 4.12
Adopt the following measures to reduce noise during the process and workpiece transmission: a.
h.
c.
.
e .
f.
Properly lubricate the press, die and material (or workpiece) to reduce noise caused by friction: avoid parts or waste materials from hitting each other or falling directly to the ground; reduce the sliding height of workpieces or waste materials·necessary A lifting mechanism is used for adjustment; the chute or slideway that transports workpieces or waste materials should be protected with damping materials. Blocks, baffles, etc. during the transmission process should especially be used for this purpose: for storage workpieces or slides that may produce impact noise Waste bins, etc. should be protected with nylon materials; reciprocating transmission devices should be made of high-strength low alloy or lightweight materials, and coated or covered with sound-proof materials, etc. 4.13 Use downward broadcasting. Reduce equipment and process airflow noise: a.
b.
c.
d.
Do not use compressed air to purge the workpiece if possible; when necessary, The gas flow and flow of the compressed air should be controlled; use a nozzle with a special structure, such as a multi-hole nozzle instead of a single-hole nozzle, and the nozzle is installed in the die; use hydraulic instead of pneumatic;
The pneumatic friction clutch is equipped with sound insulation or Muffler to reduce the number of engagements of the pneumatic friction clutch; e.
f.
Prevent air pressure pipeline leakage;
Reduce the number of times the pneumatic tools are used as much as possible, and use electric tools Replace pneumatic tools, etc. g.
4.14 When installing the Hunan mold, damping pads should be installed on the upper and lower mold bases and the press body (slide block and workbench). The safety anti-expansion cover of the equipment should also be connected to the body according to the This article is implemented. 4.15 Equipment that produces strong noise, such as small high-speed automatic presses or cleaning rollers, should be sealed in a soundproof room or cover. 4.16 For workplaces and equipment that generate strong noise, when it is not appropriate to use noise reduction, sound insulation or other measures to control the noise, noise reduction measures should be taken against the walls, doors and windows of the room. Sound absorption treatment should follow the following principles: Absorption treatment is suitable for workshops with less original sound absorption and strong reverberation sound; a.
Sound source concentrated, large-area factory building with flat body, official sound absorption Ceiling or suspended sound absorbers, the space should be hung so that the absorbers are close to the sound source: h. | ;c
el.
To concentrate all the sound sources in the room, it is advisable to damage the ceiling and walls in the sound source area, or to absorb the sound in the sound source area. sound body, and sound insulation barriers should be set up at the same time:
The sound absorption treatment also meets the process and safety requirements such as lifting and transportation, fire prevention, moisture proof, anticorrosion, dustproof, etc. Ventilation and mining equipment should be considered. || tt||Light, lighting and decoration requirements.
4.17 When the single sound insulation, sound absorption and muffler measures used in the workshop cannot meet the noise standard requirements, comprehensive control measures must be taken. 4.18 Noise reduction measures should be combined with vibration control (see Chapter 5 for details) to obtain the best control effect. 4.19 When relevant noise reduction measures are taken. For workplaces where the noise level still exceeds the provisions of Article 1.2, operators should be equipped with work stoppers, masks and other protective equipment.
4.20 Noise load measurement in production environments, non-production places and wide areas shall be carried out in accordance with the respective regulations of G31122 and GB3222. 167
5 Vibration control
JB/T 6056| | tt | | 92 | The vibration level in the adjacent area of ??the propagation boundary exceeds the limit value of the B0070 regulation chain. The main vibration should be followed and comprehensively controlled according to the applicable zone range: 5.2 The number of vibrations in the workshop to ensure the good work efficiency of the staff , does not exceed the indications in Figure 1. For example, the frequency when the maximum vibration is 4-~8Hz, the contact time is 8h, the allowable effective acceleration value is).315m/: When the horizontal vibration frequency is 11, the contact time is 2.51, which is allowed The effective acceleration value is 2.0m/s. The effective acceleration value of the vibration allowable standard is also attached (supplementary document 10m
8.0
.3
5.
.
3.15
2.5
2s/u*
(
plus
2.0
1.6||tt| |1.25
1. 0
0. 8
0.63
0.50
0.40
0.31
0.2 No.| |tt||0.20
o.16
0.125
0.101
rr
imin
=16min
25nin
Ih'
2.5h
++
4h
8h
t6h
2-ih||tt ||Hip value 1g bee value
h.
lmin
16min
25min
Th
2.5h
Ah ||tt ||8h ||tt | 6 2.0
frequency or 1/3 octave center frequency, H2
Vertical and horizontal vibration limits and allowable contact time Figure 1
Electricity
638 | | tt | | 120 | | tt | | et | | tt | By sending the acceleration values ??of each curve shown in Figure 1, you can get the allowable acceleration value at the same contact. For example, when the center frequency is (.32) and the contact time is 4h, the vertical and horizontal acceleration values ??of the ergonomics limit are respectively When 0.53m/1.12ms, the limit values ??are 1.06m/s\ and 2.24m/s2 in stages. 5.4 The perturbation parameter of the "comfort limit\" to ensure the comfort and happiness of workers must be lower than the ergonomics limit acceleration level B. The allowable acceleration value during the inter-sample contact time can be obtained by dividing the acceleration value of each linear line shown in Figure 1 by 31. For example, when the center frequency is 22 and the contact time is 8h, the vertical hydrodynamic half-direction acceleration values ??of the effective limit are C.8m/2 and 2.24m/- respectively, and the acceleration values ??of the comfort limit are 0.25m/s2 and 0.71m respectively. /s
5.5 The vibration acceleration level of the vibration source should be calculated according to formula (1) VL--20 lg
where A vibration acceleration level dB
188
ac
武t: Ana
JB/T 6056--92
effective acceleration value.m/s\, its value is calculated according to formula (2); the base acceleration value, its The value is 10-\m/s\; 2.
Amax (2 yuan f)
2
Amplitude (amplitude, the maximum value of sine rat), m: 2| |tt||Crest factor of sinusoidal quantity;
Frequency (sinusoidal frequency), Hz.
5.6 Dynamic level should be calculated according to formula (3):
VL--VAI.
. Vl. -
Dynamic level, B:
Cn
Correction value of human body’s vibration feeling (see Table 1 for its value), dB. Vibration level VL. value should not exceed the provisions of Articles 5.1 and 5.2 Table 1 Correction value of human body's vibration feeling
Frequency or 1/3 octave center question rate
Hz||tt| |1.0
1.25
1.6
2.0
2.5
3.15
4.0
5.0
6.3
8.0
10.0
12.5
16.0
20.0
25.0
31.5
40.0|| tt||50.0
63.0
80.0
5.7
vertical
toward
square
5
-4
3
2
- 1
0
0
0
0
-2
—4
6
-8
-10
12
14
-16
--18
-20
|tt||positive
value
water
square
between
()
0
0|| tt||0
2
--4
6
8
10
12
14|| tt||-16
-18
20
22
24
-26
-28
30
32
When designing, manufacturing or modifying equipment, the following measures should be taken as much as possible to reduce vibration during press operation and process: a.
b.||tt| |C | The dynamic balance accuracy of the body; install a slider balancing device;
Add an elastic bushing between the bearing and the bearing seat: inlay a damping alloy, that is, a vibration-absorbing alloy (such as manganese-copper-zinc) on the components that transmit vibration Alloys, etc.): 4.10~~4.12 related items, etc.
(2))
(3)
dH
5.8 The foundation of a press with a nominal force greater than 1000kN should be specially designed and should comply with the relevant requirements of (GHJ40). In When the foundation weight is the same, the foundation area should be increased as much as possible to improve the vibration damping capacity. 5.9 The installation of the press must comply with the relevant provisions of T)231≤) and (3) 169
JB/T 6056. --92 | or 10 200mm), when no external vibration damping device is used, the small press used for blanking and punching processes should be installed on a special foundation and should not be installed on the floor. However, this does not apply to small plastic instrumented force machines with a nominal force of 6.N or more.
5.11 For a press with a nominal force of 1000kN, when the operation or process does not produce strong vibration, the fixed support can be installed on the foundation of the press; when there is strong vibration, it should be installed on the anti-static support On the vibration support, 5,12 anti-vibration supports (such as disc springs, leaf springs, rubber buffer pads or spiral springs (preferably 4~8Hz)) should be lower than the basic natural vibration frequency (generally 1550Hz) . Viscous dampers, etc. have vibration characteristics
5.13 When the vibration level still exceeds the limit specified in Article 5.1 after taking relevant control measures, distance attenuation measures should be taken to keep the vibration source and the alarm sensitive area at a certain distance. Distance. The distance attenuation is calculated according to the formula and reaches the control index. When using fixed support, it is calculated using formula (5). When using anti-vibration support, it is calculated using formula (5). -- 10 logrVAI,-VAL--1O logr
Where: VAL
Vibration level from the distance from the vibration source, dB;
VAl.-The distance between the vibration source position and the vibration center Im ) Measured perturbation level.dB distance from the vibration source, n
(4)
5.14 For workstations that produce strong vibrations, equip operators with anti-vibration shoes and gloves. To prevent the operator from directly handling workpieces with strong vibrations, similar second steps should be replaced by mechanical devices. 5.15" Vibration measurement in the industry shall be carried out in accordance with the relevant provisions of GB10071. 6 Sewage Discharge Control
6.1 The amount of fresh water should be reduced as much as possible during the production process. The water for cleaning and flushing should be repeated and circulated as much as possible. The discharge of industrial wastewater and sewage (hereinafter collectively referred to as sewage) should be reduced as much as possible. . The use of cold circulating water should comply with the relevant regulations of G131102. 6.2 For roughening or surface treatment of workpieces, such as oil (dirt) removal, rust removal, etc., "wet processes" such as cleaning and pickling should be avoided as much as possible. Instead, "sweat-based processes" are used, such as tumbling and shot blasting. However, this limit does not apply when the resulting larger pollution source cannot be controlled. 6.3 Oils, acids, alkalis and other chemical materials used in the cattle production process should be transported, stored, distributed and used during transportation, storage, distribution and use. Properly carried out, there should be no drips, leaks, accidental leaks, etc. 6.4 The workshop floor must not leak, and no method such as seepage pits, seepage wells or overflows may be used to discharge harmful wastewater. Pipelines and pipes transporting harmful wastewater should have anti-seepage measures to avoid contaminating groundwater sources. 6.5 The transmission oil and lubricating oil of the press must not be leaked or dripped on the ground or in the foundation. 6.6 The foundation of the press should comply with the provisions of Article 3.7.3 of GB8176 to collect waste liquid. The ventilation tunnel of the pickling room should also refer to this hotline. 6.7 The discharge system should be designed and constructed according to the principle of separation of clean and sewage. 6.8 During the production process, apply lubricant to the die or workpiece as little as possible to reduce the cleaning workload and clean the water-based mice. The lubricating agent should try to use polymer coatings or petroleum oils instead of emulsified or saponified lubricating materials. 6.9 The cleaning device should be equipped with an oil trap to collect floating oil. The workshop directly discharges oil-containing alkaline sewage outside the factory. When the oil concentration is greater than -1Omg/L, it should be treated before discharge, and the discharge is allowed only when the oil content is less than or equal to 1Omg. Improve the treatment of oily alkaline sewage through the following instructions: use oil-water separators to separate oil;
a.
h.
.
17||tt| |Build a grease trap to improve oil separation;
Adopt adsorption filtration device to filter and adsorb water. JB/T6056-92
6.10 Extend the use time of the cleaning solution as much as possible and reduce the alkali concentration. When the discharged cleaning wastewater contains a high alkali concentration, it should be neutralized before discharge to bring the pH value to 6.0~9.0. When the workshop has both alkali-containing wastewater and acid-containing wastewater, the sewage waste phase five should be used for neutralization.
6.11 Waste acid should be concentrated and recycled and comprehensively utilized. 6.12 Acid-containing solutions for pickling shrimps or workpieces are strictly prohibited from being discharged without treatment. The acidic sewage that needs to be discharged should have its acid concentration reduced to the minimum (dilution cannot be used), and neutralized and buried so that H reaches 6.0 to 9.0 before it can be discharged.
6.13 Treatment of acidic wastewater when no alkaline waste is available. The charcoal neutralization method or filtration neutralization method should be used. The lime neutralization method should have a stirring and sedimentation tank (tank).
6.14 is the circulating water for rinsing after pickling or cleaning. When the acid or alkali content is high and needs to be discharged, it should be regarded as pickling or cleaning sewage and should reach the specified standard (pH value) after treatment. 6.0~9.0): 6.15 The discharge of sewage to drinking water sources, scenic spots and aquaculture farms should comply with relevant national regulations. 6.16 When sewage is discharged into urban sewers, it should comply with the relevant regulations of GBJ14: Discharged sewage temperature Must not exceed 40C: 6.17 The sediments from cleaning and pickling should be dehydrated or comprehensively utilized. 6.18 The sewage discharged directly from the workshop to surface waters and urban sewers should comply with the relevant provisions of GB8978 7 Ventilation and exhaust gas emission control
7.1 The air and air circulation in the workshop must comply with Article 3.3 of GB8176 and the relevant provisions of GBJ19. 7.2 The source of harmful substances should be arranged on the downwind side of mechanical ventilation or natural ventilation. The pickling room should be written in! The rooms are divided into two sections. If they must be located in the main factory building, they must be completely enclosed with partition walls. Not in the Lord! There is a pickling room in the room. 7.3 The heating temperature of the pickling tank shall not exceed 60C. Acid mist inhibitors should be placed on the liquid surface of the pickling tank. If necessary, a cover should be installed on the pickling tank to prevent acid mist from overflowing.
The pickling tank must be equipped with an exhaust device. The concentration of acid mist emitted should not exceed 100mg/mL. When it exceeds the standard, an acid mist purification device should be installed.
7.4. The maximum concentration of various harmful gases in the pickling room should not exceed the requirements in Table 2. Table 2 Solution name of the maximum allowable concentration of harmful gases in the pickling room
Sulfur
Acid
Sulfuric acid and hydrochloric acid
Salt
Nitric
Acid
Acid
Name of harmful gas
Sulfuric acid vapor and sulfur oxide
Hydrogen sulfide
Hydrogen
Hydrogen chloride vapor|| tt||Nitric acid vapor and nitrogen oxides
7.5 The caustic concentration of vapor emitted by the cleaning device shall not exceed 0.5mg/mmg/m
The maximum allowable concentration
7.6 Friction clutch ( When asbestos is used as friction material, if the number of presses is large, continuous stroke operation should be used as much as possible to reduce the number of engagements in a single stroke. If necessary, a dust cover should be installed on the clutch to filter out dust caused by frequent engagement due to friction. 7.7 Sandblasting or polishing devices with surface treatment (such as strengthening or rust removal) must be equipped with exhaust, filtration and sedimentation systems to filter, collect and remove dust.
The maximum allowable expansion of free silica powder containing more than 10% of dust generated during the treatment process into the atmosphere and in the workshop shall not exceed 100mg/m2 and 2mg/m respectively.
7.8 The content of free silica produced during the production process (such as storage and shearing of materials) is less than 10%, and the maximum allowable concentration of mineral and plant dust that does not contain toxic substances in the workshop shall not exceed 10mg/x The maximum allowable concentration of 17
that is discharged into the atmosphere after adopting partial ventilation and removal measures shall not exceed 100mg/m. JB/T 6056 | ||Other pollution control
8.1 Waste generated during the production process should be recycled. Metal scraps that cannot be used must be processed centrally. 8.2 Waste generated during the production process should be properly disposed of. Prevent pollution. 8.3 The waste directly discharged from the workshop must comply with the relevant regulations of GBJ4. 172
A1 Vertical vibration allowable standards are in accordance with the provisions of Table A1. Appendix A
92
Vibration allowable standards
(supplement)
Table A1
frequency or 1/3 times
frequency range Center frequency
Hz
1.0
1.25
1.6
2.0
2.5
3.15
4.0
5.0
6.3
8.0
10.0
12.5
16.0
20.0
25.0|| tt||i.5
40.0
50.0
63.0
80.0
A2
horizontal vibration
8h| |tt||0.63
0.56
0.50
0. 45
0.40
0.355
0.315
0.315| |tt||0.315
0.315
0.40
0.50
0.63
0.80
1.0
1.25||tt ||1.60
2.0
2.5
3.15
4h
1.06
0.95
0.85
0.75
0.67
0.60
0.53
0.53
0.53
0.53
0.67
0.85| |tt||1.06
1.32
1.70
2.12
2.65
3.35
4.25
5.30||tt ||The horizontal vibration allowable standard is as specified in Table A2. The vertical vibration allowable standard
effect
charge
2.5h
1.40||tt ||1.26
1.12
1.00
0.90
0.80
0.71
0.71
0.71
0.71
0.90
1.12
1.40
1.80
2.24
2.80
3.55
4.50| |tt||5.60
7.10
Qiu A2
frequency or 1/3 times
range center frequency
Hz
1.0
1.25
1.6
2.0
2.5
3.15
8h
0.224
0.224|| tt||0.224
0.224
0.280
0.355
4h
0.355
0.355
0.355||tt| |0.355
0.450
0.560
connect
1h
speed
touch
2.36
2.12
1.90
1.70
1.50
1.32
1.18
1.18
1.18
1.18|| tt||1.50
1.90
2.36
3.00
3.75
4.75
6.00
7.50||tt| |9.50
11.8
Horizontal vibration allowable standard recommendation
Yes
Charge
Effect
Xu
2. 5h
0.50
0.50
0.50
0.50)
0.63
0.8
Add
|tt||h
speed
touch
0.85
0.85
0.85
0.85
1.06||tt ||1.32
degree
hour
time
25nin
3.55
3.15
2.80
2.50
2.24
2.00
1.80
1.80
1.80
1.80
2.24
2.80| |tt||3.55
4.50
5.60
7.10
9.00
11.2
14.
18.0|| tt||degree
value
time
25min
1.25
1.25
1.25
1.25||tt| |1.6
2. 0
l6min
4.25
3.75
3.35
3.00
2.65||tt| |2.35
2.12
2.12
2.12
2.12
2.65
3.35
4.25
5.30
6.70
8.50
10.6
13.2
17.0
21.2
16nain
1.50
1.50
1.50
1.50
1.9
2.36bzxz.net
m/s
Imin
5.60
5.00
4.50
4.00
3.55
3.15
2.80
2.80
2.81| |tt||2.80
3.55
1.50
5.60
7.10
9.00
11.2
14.0||tt ||18.0
22. 4
28.0
m/s
Iin
2.0
2.0
2.0
2.0
2.5
3.15
173
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