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GB/T 12903-2008 English PDF (GBT12903-2008)

GB/T 12903-2008 English PDF (GBT12903-2008)

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GB/T 12903-2008: Personal protective equipment terminology

This Standard specifies the terms and definitions of personal protective equipment. This Standard is applicable to the formulation and revision of relevant standards; preparation of the technical documents; as well as the compilation and translation of professional manuals, teaching materials, books and periodicals, etc. This Standard is not applicable to personal protective equipment for medical rescue.
GB/T 12903-2008
NATIONAL STANDARD OF THE
PEOPLE REPUBLIC OF CHINA
ICS 13.340.01
C 73
Replacing GB/T 12903-1991
Personal Protective Equipment Terminology
ISSUED ON: DECEMBER 11, 2008
IMPLEMENTED ON: OCTOBER 01, 2009
Issued by: General Administration of Quality Supervision, Inspection
and Quarantine;
Standardization Administration of PRC.
Table of Contents
Foreword ... 3
1 Scope ... 5
2 Normative References ... 5
3 General Terminology ... 5
4 Head Protective Equipment Terminology ... 8
5 Respiratory Protective Equipment Terminology ... 10
6 Eye and Face Protective Equipment Terminology ... 19
7 Hearing Protective Equipment Terminology ... 25
8 Hand Protective Equipment Terminology ... 28
9 Protective Shoes (Boots) Terminology ... 32
10 Body Protective Equipment Terminology ... 36
11 Fall Protection Equipment Terminology ... 43
12 Skin-Protector for Worker Terminology ... 48
13 Escape Protective Equipment Terminology ... 50
English Alphabet Index ... 52
Bibliography ... 63
Personal Protective Equipment Terminology
1 Scope
This Standard specifies the terms and definitions of personal protective equipment. This Standard is applicable to the formulation and revision of relevant standards; preparation of the technical documents; as well as the compilation and translation of professional manuals, teaching materials, books and periodicals, etc.
This Standard is not applicable to personal protective equipment for medical rescue. 2 Normative References
The provisions in following documents become the provisions of this Standard through reference in this Standard. For dated references, the subsequent amendments (excluding corrigendum) or revisions do not apply to this Standard, however, parties who reach an agreement based on this Standard are encouraged to study if the latest versions of these documents are applicable. For undated references, the latest edition of the referenced document applies.
GB/T 2428-1998 Head-Face Dimensions of Adults
GB/T 4854.1-2004 Acoustics - Reference Zero for the Calibration of Audiometric Equipment - Part 1: Reference Equivalent Threshold Sound Pressure Levels for Pure Tones and Supra-Aural Earphones
3 General Terminology
3.1 Personal protective equipment
The general term for all kinds of protective products worn, equipped and used by practitioners to protect against the harm caused by physical, chemical, biological and other external factors.
NOTE: The labor protection articles worn, equipped and used at the production site are also called personal protective equipment.
3.2 Protective properties
Ability to defend against various hazards and harmful factors and protect the safety 3.14 Machinery Injury resistance
Ability to protect the human body from the harm caused by mechanical effects such as impact, piercing, cutting, twisting, abrasion, and vibration, etc.
3.15 Biological resistance
The ability to defend against the harm caused by insects and microorganisms, etc. 3.16 Resistance to puncture
Ability to defend against piercing by sharp object.
3.17 Anti-impact properties
Ability to withstand the impact load of objects.
3.18 Performance properties
Ability to ensure the user?€?s convenience for using.
NOTE: It includes easy to put on and take off, dirt resistance, easy washing, easy storage, resistance to transportation and easy maintenance, etc.
3.19 Efficacy of protector
Ability to ensure the user to play the working efficacy.
3.20 Durability
Ability to maintain the protective properties under the conditions of use and storage. 3.21 Comfort ability
Ability to make users feel fit physiologically and psychologically.
3.22 Abrasion resistance
Ability of the material to resist wear on the surface due to mechanical action. NOTE: It is generally expressed by the number of times the material is resistant to friction, or by the degree of change in the appearance, strength, thickness, weight, etc. of the sample after a certain number of frictions.
3.23 Standard head dummy
Human head model made according to the standard size of Chinese adult head type series specified in GB/T 2428-1998.
Components of the outer sur face of the head-protector.
NOTE: It generally consists of peak, brim, and top reinforcement.
4.2.2 Peak
The protruding part of the front of the shell.
4.2.3 Brim
On the shell, except for the peak, other protruding parts around the shell. 4.2.4 Top reinforcement
Structure for strengthening the top strength of the protective shell.
4.2.5 Harness
General term for internal parts of the shell.
NOTE: It includes headband, sweatband, inner cushion, liner strip, and inside lining, etc. 4.2.6 Headband
Strip-ring wrapping the head with a loop for fixing.
NOTE: The wearing position is usually located at the largest head circumference size above the human eye.
4.2.7 Sweatband
Sweat-absorbent material attached to the inner surface of the headband. 4.2.8 Inner cushion
A component that absorbs impact between the safety helmet headband and shell. 4.2.9 Liner strip
The strap inside the safety helmet directly contacting the top of the head. 4.2.10 Chin Strap
A strap attached to the chin to assist in fixing.
NOTE: It generally consists of harnesses, and lock.
4.2.11 Lock
Adjust and fix the effective length of the harnesses.
5.1.2 Air-purifying respirator
The protective article that uses the purification components, by attaching, absorbing, catalyzing or filtering, so as to remove the harmful substances in the ambient air, then acts as an air source.
5.1.3 Self-inhalation air-purifying particle respirator
The protective article that overcomes the resistance of the components by the wearer's spontaneous breathing and defends against particulate matter (such as toxic fume, toxic mist) that harms the respiratory system or the eyes and faces.
5.1.4 Self-inhalation filter type dust respirator
The filter-type protective article for dust prevention that overcomes resistance of components by the wearer?€?s spontaneous breathing.
5.1.4.1 Disposable facepiece
Simple dust respirator
The half mask that, with the simple and undetachable structure, is composed of the filter material for the main body.
NOTE: Generally, it cannot be cleaned and reused. When any component fails, it shall be discarded, with or without exhalation valve.
5.1.4.2 Replaceable facepiece
Complex dust respirator
The mask that is consisted of single or multiple replaceable filters.
NOTE: With or without breathing valve, with or without breathing catheter. 5.1.5 Non-powered air-purifying respirator
The air-purifying protective article that relies on the wearer's breath to overcome the resistance of the components, so as to defend against toxic, harmful gases or vapors, particulate matter (such as toxic fume, toxic mist), etc. that harm the respiratory system, eyes and face.
5.1.5.1 Chin style gas mask
The gas mask of which the filter is directly connected with the cover body. 5.1.5.2 Chest style gas mask
The gas mask that uses air duct to connect the filter with the cover body. so that the wearer's respiratory organs, eyes and face are completely isolated from the outside toxic air or oxygen-deficient environment. The compressed air source is provided to supply clean air to wearer, and the exhaled gas is directly discharged into the atmosphere.
5.1.12 Positive-pressure respirator
The respiratory protective articles that the pressure in the mask is greater than the ambient pressure during any breathing cycle.
5.1.13 Negative-pressure respirator
The respiratory protective equipment that the pressure in the mask is less than the ambient pressure in the inhalation phase during the breathing cycle.
5.1.14 Air breathing apparatus for fire-fighting and emergency services An air breathing protective article that is used by firefighters and personnel who are responsible for handling of nuclear, biological and chemical emergencies. 5.1.15 Airborne contaminant
Any gaseous or particulate matter that is not existed in normal air or whose concentration exceeds its standard range in normal air.
5.1.16 Particle
Aerosol
Solid, liquid or solid and liquid particulate matter suspended in the air. NOTE: such as dust, fume, mist and microorganisms.
5.1.17 Dust
Tiny solid particles suspended in the air.
NOTE: It generally indicates solid materials broken by mechanical force. 5.1.18 Fume
Tiny solid particles suspended in the air.
NOTE: It generally produced by gas or vapor condensation, the particle size is usually smaller than dust.
5.1.19 Mist
Tiny droplets suspended in the air.
Canister
The filter component that is used for the non-powered air-purifying respirator and that can filter out toxic and harmful substance from the inhalation air.
5.2.4 Combined filter
The device that is capable of filtering solid, liquid particulate matter or specific gas and vapor in air.
5.2.5 Compressed air filter
The device that is capable of filtering solid, liquid particulate matter or specific gas and vapor in compressed air.
5.2.6 Multiple filters
There are two or more filters in the respiratory protective equipment to filter the air. 5.2.7 Multi-type gas-filter
The filter that is capable of filtering various harmful gases.
5.2.8 Filtering device
A device in a respiratory protective device that the harmful gas passes first before being inhaled by the wearer. This device may be independent, electrically assisted, or electrically powered.
5.2.9 Power assisted filtering device
The air purification device that the wearer carries a small electric fan to supply air and send air into the mask.
5.2.10 Particle filtering device
A filtering device that can filter out particulate matter in the air.
5.2.11 Breathing device
A device that allows the wearer to breathe spontaneously without being affected by the surrounding atmosphere.
5.2.12 Warning device
A device that warns the wearer that respiratory protection is about to or has lost effective protection.
5.2.13 Checking device
A hose that conveys air under normal pressure.
5.2.24 Breathing hose
Soft and air-tight air duct that is used to connect mask and filter.
5.2.25 Body harness
(Respiratory protection) device for fixing compressed air cylinders behind the user. 5.3 Property terms
5.3.1 Breakthrough concentration
The toxic gas concentration in the exhaust air flow, in the anti-virus performance test, that is determined when the filter has lost its protective effect.
5.3.2 Protective time
Under the specified conditions, the time when the mixed gas of the test medium begins to pass through the filter until the concentration of the test medium reaches the limit value.
5.3.3 Breath-responsive
Active or passive response to the wearer's need for air.
5.3.4 Dew point
The temperature at which air condenses under a certain pressure.
5.3.5 Face seal leakage
When the airtightness test is performed on the mask with a specific test airflow, the gas leaked into the mask from the external atmospheric environment accounts for the percentage of inhaled air.
5.3.6 Inward leakage
Under the test conditions specified by the laboratory, the ratio OF the concentration of the simulant that is leaked into the mask from all other mask parts except the filter when the subject inhales AND the concentration of simulant in the inhaled air. 5.3.7 Total inward leakage
Under the test conditions specified by the laboratory, the ratio OF the concentration of the simulant that is leaked into the mask from all other mask parts including the filter when the subject inhales AND the concentration of simulant in the inhaled air. The pressure drop that is generated when the mask is worn on the simulated head shape, and when sucking with a certain air flow through the mask.
5.3.17 Exhalation resistance
The pressure drop that is generated when the mask is worn on the simulated head shape, and when blowing with a certain air flow through the mask.
5.3.18 Static pressure
After the positive pressure device of the air supply valve is opened, the pressure in the mask cavity when the air circuit of the air respirator is balanced.
5.3.19 Air supply volume
The air volume when converting the gas storage capacity of the gas cylinder under the nominal working pressure to that of 20??C one-standard atmospheric pressure. 5.3.20 Immediately dangerous to life or health concentration
The concentration of air pollutants in hazardous environments that reach a certain dangerous level.
NOTE: That is, exceeding this concentration can be fatal, can permanently damage health, or can make people lose their ability to escape immediately.
6 Eye and Face Protective Equipment Terminology
6.1 Basic terms
6.1.1 Eye and face protective equipment (protectors for eye and face)
The protective equipment that defends against the harm to the eyes, face and neck caused by electromagnetic radiation, ultraviolet rays and harmful light, fume and mist, chemicals, metal sparks and flying debris, dust particles, and mechanical and sports shock resistance, etc.
NOTE: Eye and face protective equipment includes sunglasses, professional eye and face protective equipment and sports eye and face protective equipment.
6.1.2 Glasses
The eye protection products with lenses installed in the frame.
6.1.3 Protective mask
(Eye and face protection) the eye protective article that protects the eye and face; and 6.1.13 Smoke and dust goggles
The closed-type eye protective article that defends against the harm from the smoke, dust and toxic gas.
6.1.14 Laser protective spectacles
The eye protective article that attenuates or eliminates the laser hazards by reflection, absorption, actinism, etc.
6.1.15 Reflection type protective eyewear
The eye protective article that is made of optical filter materials coated with dielectric films that reflect laser radiation of the corresponding wavelength.
6.1.16 Absorption type protective eyewear
The eye protective article that is made of optical filter materials that absorb laser radiation of the corresponding wavelength.
6.1.17 Compound type protective eyewear
The eye protective article that is made of optical filter materials coated with reflective dielectric films on materials that absorb laser radiation of the corresponding wavelength.
6.1.18 Googles and visor for furnace-operator
The eye and face protective articles against infrared and other radiation damage from furnaces and kilns.
6.2 Component terms
6.2.1 Ophthalmic lens
The lenses used to measure, correct vision and/or eye protection, or change appearance.
6.2.2 Spectacle lens
The ophthalmic lenses worn in front of the eyes but not in contact with the eyes. 6.2.3 Protective lens
The lenses designed to protect the eyes from external hazards.
6.2.4 Absorptive lens
The lenses that is designed to absorb a specific range of incident light radiation or to reduce the damage to human eyes caused by ultraviolet and infrared rays. 6.2.15 Screening glass
A colorless glass or plastic sheet that protects the optical filter from damage. 6.2.16 Anti-dim compound
A substance that is applied to the surface of the lens to improve the anti-water-vapor- condensation performance of the lens.
6.3 Property terms
6.3.1 Mechanical strength of spectacle lens
Under specified test conditions, the ability of the lens that can withstand the impact of a free-falling steel ball.
6.3.2 Surface abrasion resistance
Under normal use state, the ability of the lens surface that can withstand scratches caused by wearing or cleaning.
6.3.3 High speed particles protection
Under the specified test conditions, the ability of eye and face protective articles that can withstand the impact of high-speed particles.
6.3.4 Shading numerals
The serial-number of optical filter that is arranged from high to low according to the visible light transmittance of the shading sheet.
6.3.5 Geometrical center
The intersection of the horizontal center and vertical center of the lens blank or uncut lens shape.
6.3.6 Optical vertical height
The length of centerline, perpendicular to the horizontal reference line of the lens. 6.3.7 Optical horizontal reference length
The length of the center horizontal reference line between the top and bottom of the lens.
6.3.8 Luminous transmittance
The collective nouns that indicate prism deviation and base orientation. 6.3.18 Difference in prismatic effect
The difference in prismatic effect, measured at two reference points of the protective eyewear.
6.3.19 Inter-pupillary distance; PD; distance between pupils
The distance between the centers of the two pupils when the two eyes look directly at the target at infinity in front of them.
NOTE: The unit is millimeter (mm).
7 Hearing Protective Equipment Terminology
7.1 Basic terms
7.1.1 Hearing protective equipment
Ear protector
Protective equipment to protect hearing and protect human ear from excessive noise stimulation.
7.1.2 Ear plug
Hearing protective article stuffed into the external acoustic meatus (in-the-ear) or worn in the ear cavity to align with the external auditory meatus opening (in-half-the-ear). 7.1.2.1 Disposable ear-plugs
Disposable hearing protective article.
7.1.2.2 Re-usable ear-plugs
Recyclable hearing protective article.
7.1.2.3 Formable ear-plugs
Hearing protective equipment with a fixed shape, directly inserted into the acoustic meatus.
7.1.2.4 Pre-formed ear-plugs
The hearing protective article that the user can adjust to make it better adapt to the shape of the acoustic meatus.
7.2 Component terms
7.2.1 Cup
A hollow round or oval shell mounted on the headband.
NOTE: The shell of the ear-muff is usually equipped with an inner cushion. 7.2.2 Cushion
A deformable component that is used to improve comfort and fit snugly with the earmuff and is installed on the edge of the cup.
NOTE: It usually contains foam glue or deformable filler.
7.2.3 Liner
A sound-insulating and sound-absorbing material that is filled inside the cup and uses to attenuate the noise frequency.
7.2.4 Headband
A strip that applies a clamping force to the earmuffs so that the earmuffs are completely wrapped around the ears.
NOTE: It usually made of metal or plastic.
7.2.5 Head-strap
The elastic cord attached to the ear-muff or fastened to the headband.
7.2.6 Hygiene covers
A protective cover that is installed on the liner to prevent corrosion of dust, sweat, cosmetics, etc.
7.3 Property terms
7.3.1 Hearing threshold level
The percentage of the difference between a certain ear's hearing threshold for a specified sound signal and the normal hearing threshold specified in GB/T 4854.1- 2004.
7.3.2 Sound-attenuation
Under a given test signal, the average decibel value of the difference between the hearing thresholds of all subjects with and without earmuffs.
The connection part between the fingers of the glove.
8.1.8 The edge of a glove and mitten at the cuff
The uppermost opening of the glove sleeve.
8.1.9 Cuff roll
Reinforced edg...

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