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GB 30864-2014 English PDF (GB30864-2014)

GB 30864-2014 English PDF (GB30864-2014)

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GB 30864-2014: Respiratory protection -- Powered air-purifying respirator

GB 30864-2014
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 13.340.30
C 73
Respiratory Protection -
Powered Air-purifying Respirator
ISSUED ON: 2014-07-24
IMPLEMENTED ON: 2015-06-01
Issued by: General Administration of Quality Supervision, Inspection and Quarantine;
Standardization Administration of PRC.
Table of Contents
Foreword ... 4
1 Scope ... 5
2 Normative References ... 5
3 Terms and Definitions ... 6
4 Classification and Labelling ... 11
4.1 Classification and Labelling of Powered Air-purifying Respirator (PAPR) .. 11 4.2 Classification, Labelling and Tinting of PAPR Filter Elements ... 11 5 Technical Requirements ... 14
5.1 General Requirements ... 14
5.2 Tight-fitting Facepiece ... 15
5.3 Loose-fitting Facepiece and Loose-Fitting Hood ... 16
5.4 Manufacturer’s Minimum Design Flow Rate (MMDF) and Manufacturer's
Design Duration ... 17
5.5 Respiratory Resistance ... 17
5.6 Visor... 18
5.7 Inward Leakage ... 19
5.8 Breathing Hose ... 20
5.9 Dead Space ... 20
5.10 Filter Element ... 20
5.11 Strength of Connecting Component ... 23
5.12 Noise ... 23
5.13 Flammability ... 23
5.14 Checking Device ... 24
5.15 Warning Device ... 24
5.16 Intrinsic Safety and Electrical Part ... 24
5.17 Mass ... 25
5.18 Practical Performance ... 25
5.19 Requirements for Fire-fighting PAPR ... 25
5.20 Information to be Provided by the Manufacturer ... 26
6 Test ... 28
6.1 Samples and Ambient Conditions of Test ... 28
6.2 Visual Checking ... 28
6.3 Pretreatment ... 28
6.4 Actual Flow Rate and Manufacturer's Design Duration ... 29
6.5 Respiratory Resistance ... 34
6.6 Visual Field ... 35
6.7 Mechanical Strength of Visor ... 36
6.8 Inward Leakage ... 36
6.9 Compression Resistance of Breathing Hose ... 40
6.10 Dead Space ... 41
6.11 Filter Efficiency ... 42
6.12 Protective Time ... 43
6.13 Resistance of Multiple Filter Elements ... 45
6.14 Interactive Flow Rate of PAPR with Tight-fitting Facepiece ... 45 6.15 Tensile Strength ... 49
6.16 Noise ... 49
6.17 Flammability ... 50
6.18 Mass ... 52
6.19 Practical Performance ... 53
7 Identification ... 54
7.1 Identification Content ... 54
7.2 Identification Location ... 55
Annex A (Normative) Test Methods for Electrical Insulation and Heat
Resistance of Respirator Facepiece or Hood for Welding Protection ... 56 Annex B (Informative) Application of Warning Device ... 58
Annex C (Informative) Description on PAPR Application in Fire-fighting ... 60 Annex D (Informative) Summary of Requirements for Test Sample ... 63
Annex E (Normative) Assembly Method of Loose-fitting Hood (with Neck
Sealing Design) with or without Head Fixing Device ... 67
References ... 71
Respiratory Protection -
Powered Air-purifying Respirator
1 Scope
This standard specifies the classification, labelling, technical requirements, test methods and identification of powered air-purifying respirators.
This standard is applicable to powered air-purifying respirators preventing particles, toxic and harmful gas or vapor.
This standard is not applicable to respirators used in combustible, explosive and oxygen-deficient environment and for escaping.
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including amendments) applies. GB/T 2428 Head-face Dimensions of Adults
GB 2626-2006 Respiratory Protective Equipment - Non-powered Air-purifying Particle Respirator
GB 2811-2007 Safety Helmet
GB 2890-2009 Respiratory Protection - Non-powered Air-purifying Respirators GB/T 3609.1-2008 Occupational Eye and Face Protection - Welding Protection - Part 1: Welding Protector
GB/T 3609.2-2009 Occupational Eye and Face Protection - Welding Protection - Part 2: Automatic Welding Filter
GB/T 3785.1-2010 Electroacoustics - Sound Level Meters - Part 1: Specifications GB 3836.1-2010 Explosive Atmospheres - Part 1: Equipment - General
Requirements
GB 3836.4-2010 Explosive Atmospheres - Part 4: Equipment Protection by Intrinsic Safety "i"
GB/T 5703 Basic Human Body Measurements for Technological Design
GB 12476.4-2010 Electrical Apparatus for Use in the Presence of Combustible Dust - Part 4: Protection by Intrinsic Safety “iD”
GB/T 12903-2008 Personal Protective Equipment - Terminology
half facepiece
the tight-fitting facepiece capable of covering mouth and nose, or covering mouth, nose and lower jaw.
[GB 2626-2006, as defined in 3.8]
3.6
full facepiece
the tight-fitting facepiece capable of covering mouth, nose, eyes and lower jaw. [GB 2626-2006, as defined in 3.9]
3.7
loose-fitting facepiece
the loose-fitting air introduction unit used for positive pressure respirator, which only covers eyes, nose and mouth and tightly fits with face in part.
Note: as defined in 5.2.2.1 of modified GB/T 12903-2008.
3.8
loose-fitting hood
the loose-fitting air introduction unit used for positive pressure respirator, which is able to completely cover head, neck and part of the shoulder or is used together with protective clothing.
Note: as defined in 3.1.12 of modified GB/T 18664-2002.
3.9
breathing hose
the airtight air-guide hose which can deliver the breathing air to facepiece or hood. 3.10
head harness
gas and (or) vapor in air.
3.17
Filter efficiency
the percentage of particles filtered by filter element under specified test conditions. [GB 2626-2006, as defined in 3.16]
3.18
protective time
the time from the test medium's passing through the filter element to the penetrating concentration of such test medium reaching the limit value under specified conditions. Note: as defined in 5.3.2 of modified GB 12903-2008.
3.19
manufacturer’s minimum design flow rate; MMDF
the minimum flow rate promised by the manufacturer to ensure that the respirator meets corresponding performance requirements.
3.20
manufacturer's design duration
the continuous service time promised by the manufacturer to ensure that the flow rate of powered respirator is not less than the manufacturer’s minimum design flow rate. 3.21
actual flow rate
the flow rate generated by powered air-purifying respirator measured under specified conditions.
3.22
interactive flow rate
Filter elements are classified as follows:
a) Type P: prevention against particles;
b) Type A: prevention against certain organic vapor with boiling point higher than 65℃ as specified by the manufacturer;
c) Type B: prevention against certain inorganic gas specified by the manufacturer; d) Type E: prevention against certain acid gas specified by the manufacturer; e) Type K: prevention against ammonia and certain organic derivative of ammonia specified by the manufacturer;
f) Type NO: prevention against nitrogen oxide;
g) Type Hg: prevention against mercury vapor;
h) Type CO: prevention against carbonic oxide gas;
i) Type AX: prevention against certain organic vapor with boiling point not higher than 65℃ as specified by the manufacturer;
j) Type SX: prevention against certain special compound specified by the manufacturer;
k) Any combination of the above types.
4.2.2 Labelling and tinting of filter elements
Filter efficiency of particle filter element and combination filter element against particles is classified into two grades: 95.00% and 99.97%, respectively corresponding to labels of P95 and P100. Gas and/or vapor filter elements of Types A, B, E and K are classified into three grades according to protective capacity: Grade 1 represents low protective capacity, Grade 2 represents moderate protective capacity, and Grade 3 represents high protective capacity; gas and/or vapor filter elements of other Types (e.g. SX, CO, AX, NO, etc.) are not graded. The classification method of Types A, B, E and K in combination filter elements is the same as the grading method of separate protective filter elements; see the last row of the labelling example in Table 2. See Table 2 for labelling, tinting and prevented pollutant examples of various filter elements of PAPR.
5 Technical Requirements
5.1 General Requirements
The material and structural design used for PAPR shall meet the following requirements, checked according to the method in 6.2 and assessed according to 6.19.
a) The material shall meet the following requirements:
1) Suitable for use under the expected exposure temperature and humidity conditions and corrosive environment; after the pretreatment under the
conditions specified in 6.3.1, PAPR components (except filter element) shall be free from obvious deformation and inside separation and shall meet the requirements of 5.2~5.9 and 5.11~5.18;
Note: generally, the pretreatment doesn't cover charger unless the respirator design makes the battery charger inseparable from the respirator.
2) Materials known to be able to cause skin irritation or other adverse reactions shall not be adopted for components which may directly contact the wearer's skin;
3) The product is able to withstand the detergent and disinfectant and their treatment methods as suggested by the manufacturer;
4) The inside of filter element shall be able to withstand the corrosivity of filter medium;
5) The air flow filtered by filter element shall be free from substance or peculiar smell harmful to human.
b) The structural design of product shall meet the following requirements: 1) It shall not cause structural damage easily; the component design,
composition and installation shall not endanger the wearer;
2) The head harness and PAPR fixing device shall be adjustable and convenient for wearing and removal; the PAPR shall be firmly fixed on the wearer, and no obvious pressing or pain due to pressing shall appear during wearing.
3) During the wearing and removal process, the part directly contacting the wearer shall be free from any sharp edge and burr;
2890-2009.
5.2.2 Head harness
The head harness strength shall meet the requirements of 5.1.11, GB 2890-2009. 5.2.3 Negative pressure PAPR
Tight-fitting facepiece used for negative pressure PAPR shall meet the following requirements:
a) It shall meet the requirements of 5.5, 5.7, 5.11 and 5.12, GB 2626-2006; b) Where checked according to the method in 6.2, the tight-fitting facepiece used for negative pressure PAPR shall only be used in conjunction with particle filter element; gas and/or vapor filter element and combination filter element shall not be used.
5.3 Loose-fitting Facepiece and Loose-Fitting Hood
5.3.1 General Requirements
Product design shall meet the following requirements:
a) Where facepiece or hood doesn't contain fan component, the filter element cannot be directly connected with facepiece or hood. It is checked according to the method in 6.2;
b) The facepiece or hood shall be equipped with facepiece or hood as required so as to be fixed on body; its design and composition shall provide proper fastening strength and shall be adjustable or have certain flexibility so as to be suitable for head-form and body type within certain range. It is assessed in 6.19;
c) If the product is claimed to have additional protective functions for eyes, face and head beyond this standard (e.g., protection against mechanical shock or non-ionizing radiation, etc.), such additional functions shall not interfere the respiratory protection performance specified in this standard. It is assessed in 6.19. 5.3.2 Safety helmet function
If the facepiece or hood is claimed to have safety helmet function, it shall meet the requirements of impact absorption performance (4.2.1), penetration resistance performance (4.2.2) and chin strap strength (4.2.3) in GB 2811-2007. If used in flammable and explosive environment, the safety helmet should comply with the requirements of a) Where tested according to the method in 6.5.2, the peak inhalation resistance of PAPR under power-off state shall not exceed 1100Pa;
b) Where tested according to the method in 6.5.3, the peak inhalation resistance of PAPR under power-on state shall not exceed 350Pa;
c) Where tested according to the method in 6.5.4, the peak inhalation resistance of PAPR under power-on state shall not exceed 700Pa.
5.5.2 PAPR with loose-fitting facepiece and loose-fitting hood
Where tested according to the method in 6.5.5, the positive pressure in facepiece or hood shall not exceed 500Pa.
5.6 Visor
5.6.1 Visual field
Where tested according to the method in 6.6, the tight-fitting facepiece shall meet the requirements of 5.1.7, GB 2890-2009; the total visual field of loose-fitting facepiece and loose-fitting hood shall not be less than 70%. Where there are various sizes of facepiece or hood, each size shall meet this requirement.
This requirement is not applicable to the facepiece or hood claimed to have welding protection function.
5.6.2 Mechanical strength of visor
Where tested according to the method in 6.7, the visor shall be free from any form of damage, and the facepiece or hood after test shall also meet the requirements of 5.7. 5.6.3 Prevention against high-speed particle impact
If PAPR facepiece or hood is claimed to have prevention performance against high-speed particle impact, it shall meet the technical requirements for visor in 5.11, GB 14866-2006. The facepiece or hood after test shall also meet the requirements of 5.7. 5.6.4 Special requirements for welding protection
If PAPR facepiece or hood is claimed to have welding protection function, it shall not only meet the applicable requirements in 5.1, 5.2 or 5.3 of this standard, but also comply with the following requirements:
a) As for the non-automatic dimmer welding filter glass, its length shall not be less 5.8 Breathing Hose
5.8.1 As tested according to the method in 6.9, the peak inhalation resistance of PAPR with tight-fitting facepiece shall not exceed 350Pa prior to imposing pressure; after imposing pressure, the change value of peak inhalation resistance shall not exceed 50Pa; as for the PAPR with loose-fitting facepiece or loose-fitting hood, the decrease of flow rate under pressure shall not exceed 5% of the MMDF value; where checked 5min after the elimination of pressure according to the method in 6.2, the breathing hose shall be free from deformation.
5.8.2 Where tested according to the method in 6.19, the breathing hose shall not restrict the free movement of the wearer's head, and shall meet the requirements of GB/T 23465-2009.
5.9 Dead Space
Where tested according to the method in 6.10, the volume fraction of average carbon dioxide content in inhaled air of PAPR with tight-fitting facepiece under power-on state shall not exceed 1%, while that under power-off state shall not exceed 2%; the volume fraction of average carbon dioxide content in inhaled air of PAPR with loose-fitting facepiece and loose-fitting hood under power-on state shall not exceed 1%. 5.10 Filter Element
5.10.1 Basic requirements
Where checked according to the method in 6.2, the design and material of filter element shall meet the following requirements:
a) The design of gas and/or vapor filter element shall not allow for refilling of adsorbent;
b) Replacement shall be carried out without special tools;
c) The part preventing particles of combination filter element shall be located in the air inflow direction;
d) After the pretreatment specified in 6.3.2, it shall be free from mechanical damage and meet the requirements of 5.10.2 and (or) 5.10.3.
5.10.2 Particle filter efficiency
According to the method in 6.11, conduct the test with oily particle. The filter efficiency of Grade P95 particle filter element and combination filter element shall not be less than 5.14 Checking Device
5.14.1 Where checked according to the method in 6.2, each set of PAPR shall include checking device to check whether PAPR reaches MMDF.
5.14.2 Where the checking device displays that the air supply volume of PAPR is acceptable, the actual flow rate shall not be lower than MMDF, after the test of actual flow rate according to 6.4, confirm whether the checking device is in accurate and reliable display according to the application method of checking device.
5.15 Warning Device
PAPR should be equipped with warning device.
If PAPR is equipped with warning device, carry out checking according to the method in 6.2, during application process, the warning message shall not be closed and shall be sensed by the wearer, and the method for wearer checking whether the warning device is normal shall be provided.
Where tested according to the method in 6.19, it is confirmed that the warning device may be checked. See Annex B for the warning function of PAPR.
5.16 Intrinsic Safety and Electrical Part
PAPR shall meet the following requirements:
a) Where tested according to the method in 6.19, it is confirmed that the design of PAPR electrical part will not restrict the air flow properly or make the air flow backflow;
b) If it is declared that PAPR is provided with intrinsic safety in flammable and combustible environment, the intrinsic safety of its integral and electrical part shall meet the requirements of GB 3836.1-2010 and GB 3836.4-2010;
c) It is declared that PAPR can be used in explosive dust site, the intrinsic safety of its integral and electrical part shall also meet the requirements of Protection by Intrinsic Safety “iD” in GB 12476.4-2010 or Protection by Enclosures "tD" in IEC 61241-1:2004;
d) Where checked according to the method in 6.2, the battery adopted shall be of fluid type and not be of overflow type;
e) Where tested according to the method in 6.19, the battery adopted shall be 5.20 Information to be Provided by the Manufacturer
5.20.1 Complete set of respirator
Where checked according to the method in 6.2, each set of respirator shall be provided with Chinese instructions to make the trained personnel master correct use method. The contents of selection, use and maintenance of relevant product shall be consistent with the relevant requirements of GB/T 18664-2002 and shall at least include the following information:
a) Application scope and restriction;
b) Type of PAPR (see Table 1);
c) Information on correct wearing, use, maintenance, charging (if applicable) and storage, recommended use temperature and storage temperature as well as humidity range.
d) Explanation about the allowed filter elements and their combined components in detail and that of the corresponding PAPR type.
Note: the use of illustration, component No. and label may assist explanation. e) Detailed suggestions for use and replacement of filter element;
f) The filter element shall be disposable where used for CO protection; g) The product shall be provided with the contact information of the manufacturer or its designated service provider to help the user understand other information in the specific environment, e.g. suggestions about the applicability of filter element of certain type;
h) Corresponding instruction shall be provided where there is end-of-service-life indicator;
i) The manufacturer's design duration under the state where the battery is used by matching with different types of PA...

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