CN108801876A - The test method of children's mask protection effect - Google Patents
The test method of children's mask protection effect Download PDFInfo
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- CN108801876A CN108801876A CN201810592270.4A CN201810592270A CN108801876A CN 108801876 A CN108801876 A CN 108801876A CN 201810592270 A CN201810592270 A CN 201810592270A CN 108801876 A CN108801876 A CN 108801876A
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- 230000000694 effects Effects 0.000 title claims abstract description 55
- 238000010998 test method Methods 0.000 title claims abstract description 12
- 238000012360 testing method Methods 0.000 claims abstract description 47
- 239000000443 aerosol Substances 0.000 claims abstract description 16
- 230000029058 respiratory gaseous exchange Effects 0.000 claims abstract description 14
- 238000012806 monitoring device Methods 0.000 claims abstract description 12
- 230000009471 action Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 239000013618 particulate matter Substances 0.000 claims description 7
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 6
- 238000005070 sampling Methods 0.000 claims description 6
- 230000003068 static effect Effects 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 238000013142 basic testing Methods 0.000 claims description 3
- 239000002285 corn oil Substances 0.000 claims description 3
- 235000005687 corn oil Nutrition 0.000 claims description 3
- 239000011780 sodium chloride Substances 0.000 claims description 3
- 238000013461 design Methods 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 description 17
- 230000004888 barrier function Effects 0.000 description 6
- 230000001681 protective effect Effects 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 230000001815 facial effect Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008131 children development Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N2015/084—Testing filters
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- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The present invention discloses a kind of test method of children's mask protection effect, includes the following steps：1) children's mask is worn on children's emulational head model, children's emulational head model is the serial emulation head mould of point different age group, every size is the 80%~95% of the corresponding every size of standard adult's head mould, serial emulation head mould include the emulational head model of a low age bracket, high age bracket emulational head model and at least one middle age bracket emulational head model, and low age bracket >=3 year old, high age bracket≤14 year old；2) test storehouse, respiration simulator and aerosol concentration monitoring device, protection effect of the test mask in serial emulation head mould are utilized；3) each protection effect data that comprehensive mask measures on serial emulation head mould, using the minimum value of protection effect as the protection effect of the sample.For the problem that different age group children design, serial emulational head model carries out protection effect test to the present invention, and can solve children's money mask can not test protection effect, and testing result accuracy is high.
Description
Technical field
The present invention relates to the detection technique fields of protective respirator, more particularly to the detection of children's mask protection effect
Method.
Background technology
Children's mask is the protective respirator for being mainly directed towards the children in 3-14 age last birthday stages and providing.With adult
Money mask has stringent professional standard difference, and there are no country and world standards for children's mask.Current either China is still
U.S. etc. did not all put into effect standard or testing requirements about children's mask.The reason is that being in growth and development at full speed
Children's facial differences in journey are very big, and general classification may not be carried out by age, weight or gender.Therefore,
The quality of the protective respirators such as children's mask on the market is irregular, and consumer does not know how to differentiate or select suitable youngster
Virgin protective mask, the producer's also indefinite protection effect for detecting and weighing children's mask using which kind of means or standard.
Currently, adult's money mask testing standard includes mandatory national standards GB 2626-2006 and recommendatory national standard
GB/T 32610-2016, wherein GB 2626-2006 are tested using adult true man, and GB/T 32610-2016 are using mark
Quasi- adult's experiment head mould test.It is not meet ethics to want if carrying out the test of children's mask protection effect using minor
It asks.Due to the particularity of child growth, different age group children's face difference in size is larger, and the industry is not also about children
The standard or specification of mask barrier propterty test, it is difficult to provide the protection effect for having convictive children's mask to lead to the producer
Testing result.The protective respirators such as children's mask on the market all without the detection of specification, imitate by the protection of various publicity
Fruit cannot effectively be verified.This field lacks a kind of test method of effective children's mask protection effect
Invention content
Technical problem to be solved by the present invention lies in, a kind of test method of children's mask protection effect is provided, and it is existing
There is detection method to compare, detection method more meets children's facial characteristics, and the testing result of protection effect is more accurate.
In order to solve the above technical problems, the test method of children's mask protection effect of the present invention, includes the following steps：
1) children's mask is worn on children's emulational head model, children's emulational head model is that the series of point different age group is imitative
Every size of proper head mould, children's emulational head model is that medium size experiment head mould as defined in GB/T 32610-2016 standards is opposite
The 80%~95% of the every size answered, the serial emulation head mould include the emulational head model of a low age bracket, a high year
The emulational head model of the emulational head model and at least one middle age bracket of age section, and low age bracket >=3 year old, high age bracket≤14 year old；
2) using test storehouse, respiration simulator and aerosol concentration monitoring device, test mask is in serial emulation head mould
Protection effect；
3) each protection effect data that comprehensive mask measures on serial emulation head mould, using the minimum value of protection effect as
The protection effect of the sample.
Specifically, in the step 2), children's emulational head model is operated by head mould control system and completes basic test action：
, left-right rotation head static including head comes back and bows, silent, static etc., mould of loudly reading passage, head of dehiscing
Quasi- normal use situation tests the protection effect under corresponding test action.
The testing principle of protection effect in the present invention is that a certain concentration and particle diameter distribution occurs by aerosol generator
Aerosol particle pass through mask filtering using particulate matter detection means appropriate detection to provide gas flow by mask
Front and back particle concentration.Mask pair is evaluated by the percentage of particle concentration decrement after mask by calculating aerosol
The protection effect of particulate matter.
Specifically, in the step 2), first, respiration simulator and aerosol concentration monitoring device, number to be shown are opened
After value stabilization, record enters the gas endoparticle object concentration of head mould, the i.e. background of mask endoparticle object by head mould corrugated hose
Concentration；Then, respiration simulator is closed, tested media is imported in test storehouse, passes through ring using aerosol concentration monitoring device
Border air is reached after it in test storehouse after the concentration of the useful space, opening breathing using the concentration of tested media in pipe monitoring storehouse
Simulator sucks gas using tested media concentration in aerosol concentration monitoring device record storehouse and by head mould corrugated hose
Middle tested media concentration.
Specifically, in the step 2), tested media is NaCl particulate matters and corn oil particulate matter, is being tested in storehouse initially
A concentration of 20mg/m3~30mg/m3, in test process concentration variation should not exceed 10%.Particulate air kinetic diameter is distributed
It should be 0.02~2 μm.NaCl particulate matter quality meso-position radius is about 0.6 μm, and corn oil particulate matter quality meso-position radius is about 0.3 μm.
Specifically, in the step 2), protection effect P is calculated as follows：
P=(C1-C2+C0)/C1× 100%, in formula：
C1To test tested media concentration in storehouse in experimentation, unit is every cubic metre of milligram；
C2To suck tested media concentration in gas by head mould corrugated hose in experimentation, unit is every cube of milligram
Rice；
C0For tested mask endoparticle object background concentration, unit is every cubic metre of milligram；
When being tested, C should be detected simultaneously1And C2Numerical value, and calculate the protection effect of multiple sampling instant samples,
Using the minimum value of the protection effect obtained in integrated testability process as the protection effect of the sample.
The not no relevant criterion or specification about the detection of children's mask barrier propterty in this field, in industry not to children's mask
The detection of protection effect is carried out, product quality is irregular, is unfavorable for the sound development of industry.
Children's mask barrier propterty detection method provided by the invention can realize following advantageous effect：Mechanism detection is inconvenient to be used
Children are as test experiments person, and detection is larger with experiment head mould and real human body head difference at present, and stationary gripper die cannot be into
Row test action can only detect mask protection effect under static state, and using children's serial emulation head mould instead can be soft by computer
Part controls head mould and carries out test action, can fully assess mask protection effect.Grow up due to child development and change particularity, no
It requires the serial emulational head model of design to carry out protection effect test according to standard facial size with age bracket children, children's money can be solved
Mask can not test the problem of protection effect.Present invention can apply to mask detection industries, and more truely and accurately assess
Virgin mask barrier propterty.
Description of the drawings
Fig. 1 is used test children mask barrier propterty schematic diagram of the present invention.
Fig. 2 is children's emulational head model schematic diagram used in the present invention.
Sign flag explanation in attached drawing：
1, storehouse is tested；
2, sample；
3, head mould corrugated hose；
4, human body sampling pipe is sucked；
5, environmental gas sampling pipe；
6, aerosol concentration detection device；
7, respiration simulator；
8, children's emulational head model；
9, head mould control system.
Specific implementation mode
Clear, complete description will be carried out to technical scheme of the present invention below, it is clear that described embodiment is this hair
Bright a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art exist
The every other embodiment obtained under the premise of not making creative work, shall fall within the protection scope of the present invention.
The test method that the present invention uses, includes the following steps：
1) the children's mask newly sealed off is taken out, is worn over securely on children's emulational head model 1 according to manufacturer's operation instruction, youngster
It is 1 that virgin emulational head model 1, which is according to different age group children's mansize's ratio,:The serial emulation head mould for dividing age bracket of 1 design,
Every size of serial emulation head mould is the 80%~95% of the corresponding every size of standard adult's head mould, and first detection series is imitative
Proper head mould one of which；Here standard adult's head mould refers to that GB/T 32610-2016 standard medium-sizes test head mould.
2) test storehouse, respiration simulator, intelligent simulation head mould control system and aerosol concentration monitoring device are utilized, according to
Corresponding test action is made in computer software instruction, and the method for testing protection effect does not calculate corresponding protection effect P1；
3) children's emulational head model 1 divides all ages and classes stage to have multiple, repeat the above steps one, two operation, test series
The protection effect P of other age bracket head moulds of emulational head model2、P3Deng；
4) comprehensive mask assesses children's mask in the protection effect data of multiple age bracket head moulds of serial emulation head mould
Protection effect, using the minimum value of protection effect as the protection effect of the sample.
What method provided by the invention was completed by following device.As shown in Figure 1, a kind of children's mask protection effect test
Device, including test storehouse 1, sample 2, head mould corrugated hose 3, sucking human body sampling pipe 4, environmental gas sampling pipe 5, gas are molten
Gum concentration detection device 6, respiration simulator 7, children's emulational head model 8, head mould control system 9.Children's emulational head model 8 is equipped with 3
A trepanning, respectively face and two nostrils, wherein face are connected by pipeline 3 with breathing analog machine 7, and it is molten that gas is connected at nostril
Gum concentration monitoring device 6,8 bottom end of children's emulational head model are connected with head mould control system 9.
Test storehouse 1 be with larger observation window can closed warehouse, size convenient for testing staff operation.Tested media from
The top in storehouse is uniformly sent into, and after test, is discharged by the bottom opening in storehouse.
Aerosol concentration monitoring device can monitoring and test storehouse and head mould are worn in mask sucking gas simultaneously particulate matter it is dense
Degree, protection effect is calculated through master system.
It is connected to simulate the respiratory of human body with children's emulational head model by respiration simulator, passes through aerosol monitoring pair
Storehouse and mask endoparticle object measurement of concetration are tested to realize the detection of mask protection effect.
The present invention can effectively, accurately assess children's mask barrier propterty, can solve in the prior art to children's money
Mask can not be tested the problem of protection effect, and testing result accuracy is high.
In conclusion the various embodiments described above are only presently preferred embodiments of the present invention, not limiting the present invention's
Protection domain, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should be all included in
In protection scope of the present invention.
Claims (5)
1. a kind of test method of children's mask protection effect, which is characterized in that include the following steps：
1) children's mask is worn on children's emulational head model, children's emulational head model is the serial emulation head of point different age group
Every size of mould, children's emulational head model is that GB/T 32610-2016 medium sizes test the corresponding every size of head mould
80%~95%, the serial emulation head mould include the emulational head model of a low age bracket, high age bracket emulational head model,
With the emulational head model of at least one middle age bracket, and low age bracket >=3 year old, high age bracket≤14 year old；
2) test storehouse, respiration simulator and aerosol concentration monitoring device, protection of the test mask in serial emulation head mould are utilized
Effect；
3) each protection effect data that comprehensive mask measures on serial emulation head mould, using the minimum value of protection effect as the sample
The protection effect of product.
2. test method as described in claim 1, which is characterized in that in the step 2), operated by head mould control system
Children's emulational head model completes basic test action, basic test action includes static head, head left-right rotation, new line and
It bows, dehisce that silent, head is static.
3. test method as described in claim 1, which is characterized in that in the step 2), first, open respiration simulator and
Aerosol concentration monitoring device, after numerical stability to be shown, record enters the gas endoparticle of head mould by head mould corrugated hose
Object concentration, the i.e. background concentration of mask endoparticle object；Then, respiration simulator is closed, tested media is imported in test storehouse, is made
The concentration for monitoring tested media in storehouse using pipe by surrounding air with aerosol concentration monitoring device waits for that it reaches in test storehouse
After the concentration of the useful space, open respiration simulator, using aerosol concentration monitoring device record storehouse in tested media concentration with
And tested media concentration in gas is sucked by head mould corrugated hose.
4. test method as described in claim 1, which is characterized in that in the step 2), tested media is NaCl particulate matters
With corn oil particulate matter, initial concentration is 20mg/m in test storehouse3~30mg/m3, concentration variation≤10% in test process；
The distribution of particulate air kinetic diameter should be 0.02~2 μm.
5. test method as described in claim 1, which is characterized in that in the step 2), protection effect P is counted as follows
It calculates：P=(C1-C2+C0)/C1× 100%, in formula：
C1To test tested media concentration in storehouse in experimentation, unit is every cubic metre of milligram；
C2To suck tested media concentration in gas by head mould corrugated hose in experimentation, unit is every cubic metre of milligram；
C0To be tested mask endoparticle object local concentration, unit is every cubic metre of milligram；
When being tested, C should be detected simultaneously1And C2Numerical value, and the protection effect of multiple sampling instant samples is calculated, with whole
Protection effect of the minimum value of protection effect obtained in body examination examination process as the sample.
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| CN201810592270.4A CN108801876A (en) | 2018-06-11 | 2018-06-11 | The test method of children's mask protection effect |
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| CN201810592270.4A CN108801876A (en) | 2018-06-11 | 2018-06-11 | The test method of children's mask protection effect |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110553968A (en) * | 2019-08-12 | 2019-12-10 | 生纳科技(上海)有限公司 | Artificial intelligent simulation head model for detecting children respiratory protection articles |
| CN111766092A (en) * | 2020-07-10 | 2020-10-13 | 中国矿业大学 | Virus droplet aerosol infection interactive simulation experiment system |
| CN112730037A (en) * | 2021-01-28 | 2021-04-30 | 莱茵技术（上海）有限公司 | Comprehensive performance testing device for mask |
| CN112924212A (en) * | 2021-01-26 | 2021-06-08 | 郭林 | Melt and spout peeling means of cloth and non-woven fabrics |
| CN114001876A (en) * | 2021-11-02 | 2022-02-01 | 南通大学 | Multi-point detection system and method for mask tightness |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110553968A (en) * | 2019-08-12 | 2019-12-10 | 生纳科技(上海)有限公司 | Artificial intelligent simulation head model for detecting children respiratory protection articles |
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| CN112924212A (en) * | 2021-01-26 | 2021-06-08 | 郭林 | Melt and spout peeling means of cloth and non-woven fabrics |
| CN112730037A (en) * | 2021-01-28 | 2021-04-30 | 莱茵技术（上海）有限公司 | Comprehensive performance testing device for mask |
| CN114001876A (en) * | 2021-11-02 | 2022-02-01 | 南通大学 | Multi-point detection system and method for mask tightness |
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