Helmet Standards
date:09-11-14 look：Introduction:Standard requirements for industrial safety helmets used on the physical performance requirements, technical performance requirements and test rules, management, marking and packaging
A thematic content and scope of application
This standard specifies the industrial use of helmets, the physical performance requirements, technical performance requirements and test rules, management, signs and packaging.
This standard applies to industrial safety helmet on a commonly used, but has added other special properties, then only applies to the corresponding special venues.
2 Reference Standard
GB 1410 Solid electrical insulating materials, insulation resistance, volume resistivity and surface resistivity test method
GB 2812 Safety Helmet Test Method
3 Terminology
3.1 Helmet
On the human body from head injuries by external protective effect of the cap. From the cap shell, hat lining, under the chin with the latter composed of hoops.
3.1.1 cap shell
Helmets, including the visor cap shell, brim, top bars, vents, outlets, and the next bolt hole lined with hanging seat chin and so on.
a. visor: hat shell out the front of the part;
b. Visor: In addition to visor cap outside the shell around the protruding part;
c. roof bars: top of the shell cap is used to enhance the strength of the part;
d. ventilation holes: cap shell open pores;
e. socket: hat shell and lining hats and accessories to connect the insert structure;
f. connector: Connection cap liner and the cap shell hole.
3.1.2 cap lining: the internal components of the general shell cap. Including the top hat hoop belt, retaining belt, prop belt, Sweat-absorbent belt, pad and bolt rope and so on.
a. cap hoop: Some of the fixed around the role of head circumference band ring;
b. care Belt: direct contact with the head at the top of the belt;
c. retaining belt: an additional layer of care with no contact above the heads of the tape, have a dampening effect;
d. bolt rope (belt): Connection entrusted with and retaining belt, cap liner and the cap shell rope (belt);
e. Sweat-absorbent tape: the outside hoop wrapped in cap strip Sweat-absorbent material;
f. liner: hat hoop and cap shell serve as buffers between the pad;
g. After the hoop: hoop in the rear plus a cap adjustable hoop;
h. cap liner connector: Connection cap liner and cap the connector shell.
3.1.3 under the chin belt: the Department of the chin strap on.
3.1.4 Locking Card: adjustment under the chin with a length of fixture.
3.1.5 Plug: cap shell and cap liner combined with plug connection approach.
3.1.6 bolted: cap shell and cap liner with bolt rope connected way.
3.1.7 Riveting: cap shell and cap liner with rivets Riveting way.
Bureau of Technical Supervision 1989-12-01 approved 1990-08-01 levels of implementation of the GB 2811-89 3.2 Pitch: the wearing of helmets when the cap hoop with the cap space for any level of the shell surrounding the distance between points.
3.3 Vertical Distance: the wearing of helmets when the top of the head with the cap of the vertical distance between the top shell (not including the top bars space).
3.4 Wear Height: helmet wear, the hat hoop bottom to the top of the vertical distance from the first.
3.5 model: testing helmets, the use of the head model (see Appendix A).
4 structure requirements
4.1 cap top of the shell should be strengthened. Can be made into light the top or muscle structure. Cap shell made of non-along, there are along, or curling.
4.2 shall be made of a plastic cap liner after the hoop structure, can freely adjust the size of hat hoop.
4.3 After the hoop no cap under the chin with a liner made of the "Y" type, there are post-hoop, made of a single permit.
4.4 contact with the first hat hoop forehead should be breathable, Sweat-absorbent.
4.5 cap hoop around the liner can be made into bars, or block, and leaving room for air circulation.
5 size requirements
5.1 cap shell internal
a. Long :195 - 250mm;
b. Width :170 - 220mm;
c. High-:120 - 150mm.
5.2 visor :10 - 70mm.
5.3 Visor :0 - 70mm, downward-sloping degree of 0 ° - 60 °.
5.4 ventilation hole: the hole on the cap shell, with a total area of not less than 400mm2. Not subject to this limit for special purposes.
5.5 cap hoop:
It comprises the following three numbers
No. 1 :610 - 660mm
2 :570 - 600mm
3 :510 - 560mm.
Cap hoop, you can separate the single-do, can also be universal.
5.6 Vertical spacing
a. plastic lining :25 - 50mm;
b. cotton or chemical fiber belt :30 - 50mm.
5.7 wear high :80 - 90mm.
5.8 Level spacing :5 - 20mm.
5.9 cap shell around the protrusion height of not more than 6mm, around the protrusion should be padded.
6 Color
Generally light-colored, or eye-catching color is appropriate. Such as white, pale yellow and so on.
7 Weight
a. small along, curling helmets not more than 430g (not including accessories);
b. large along the helmets not more than 460g (not including accessories);
c. cold cap of no more than 690g (not including annex).
8 Categories
A variety of helmets according to different materials, shape, workplace classified.
8.1 Materials Category:
8.1.1 Engineering Plastics: Plastics mainly consists of thermoplastic materials and thermoset materials, two broad categories. Mainly used to produce shell helmet hat, cap lining, etc. to produce the materials used cap hoop, when joined other by plastic, coloring agents materials, pay attention to whether the toxicity of these components do not cause skin irritation or inflammation.
Used in coal mine gas used in plastic caps, anti-static agent should be added.
Thermosetting materials and glass fiber, polyvinyl alcohol made silk mixture suppression.
8.1.2 Rubber Material: rubber materials are natural rubber and synthetic rubber. Can not use waste plastic and recycled rubber.
8.1.3 Paper plastic materials: paper pulp and other raw material used rubber modulation.
8.1.4 Plant material: Plant material has Fujiko, willow, bamboo.
8.1.5 cold cap material: cold cap plastic hat shell can be used, plant material is made of cotton fabric can be used, chemical fiber products, sheep-shorn, plush, leather, artificial leather, wool and so on. Yarn-dyed hat lining can be used, velvet, wool and so on.
8.1.6 cap lined with a material: cotton, chemical fiber.
8.1.7 cap liner and top with a bolt rope material: cotton rope, fiber rope, or cotton, chemical fiber mixed rope.
8.1.8 under the chin with a material: cotton tape or fiber tape.
8.2 Overall Classification: None along, small along, curling, along the large along the other.
8.3 workplace Category: general operations and special operations.
8.3.1 Test requirements: Table 1.
Note: ① Y, the general job categories of helmets.
② T said the special operations types of helmets.
③ test requirements and methods see GB 2812.
9 helmet technical performance requirements of
9.1 The basic technical performance requirements of
9.1.1 shock absorption
To GB 2812 Chapter 3 and Chapter 4 provided for the method by low-temperature, high temperature and sprinkling done after pre-impact test. The force on the passing Daotou die no more than 4900N (500kgf).
9.1.2 puncture resistance of
To GB 2812 Chapter 3 and the provisions of Chapter 5 of the experiment. Electrical contact display device does not appear that the cone does not touch the surface of the first mold.
9.2 special technical performance requirements of
9.2.1 Electrical insulation properties
GB 2812 to the provisions of Chapter 6 to test the leakage current less than 1.2mA.
9.2.2 Flame Retardancy
GB 2812 to the provisions of Chapter 7 of the experiment continued burning time of less than 5s.
9.2.3 lateral rigidity
GB 2812 to the provisions of Chapter 8 to test the maximum deformation of no more than 40mm, the residual deformation of no more than 15mm.
9.2.4 Anti-static properties
GB 2812 to the provisions of Chapter 9 in the experiment, the actual measured surface resistivity of not more than 1 × 109Ω.
10 Inspection Rules
10.1 The factory production of helmets shall be subject to inspection department designated by the State inspected and to obtain production licenses only after the production and sales.
10.2 helmet manufactured by batch 2000 - 20000 testing, a group of less than 2000 are still a number of calculations.
10.3 to conduct random factory by words, there were a failure, double testing, if still fail, then the batch product failure.
10.4 factory for testing, only the actual achieved performance test to prove out the words.
10.5 random plant inspection department of the national product, there should be provincial and municipal inspection department or factory representatives. Product quality is lowered, the state inspection department shall direct the factory to improve product quality, errant standard production, product quality, the factory down the right to criticize, warnings, notification. Serious proposal to revoke certification of their production licenses.
11 procurement, supervision and management of
11.1 helmet purchase: businesses must purchase a product inspection and certification of products, experience in post-harvest products purchased, Fang allowed.
11.2 helmet should not be stored in: acid, alkali, high temperature, sunlight, humidity and other premises, must not, and hard objects together.
11.3 The use of helmets period: from the product manufacturer completes the calculation.
The twigs knit cap not exceeding two years.
Plastic cap, plastic cap of paper of no more than two and a half.
Glass fiber reinforced plastic (polyvinyl alcohol steel) rubber cap of no more than three and a half.
11.4 Enterprise security technology department in accordance with Article 11.3 provides for expiration of the helmet, to conduct random testing, qualified only after continued use, after testing once a year, testing helmets that failed then the batch scrapped.
11.5 provincial and municipal departments in charge of Labor Bureau of the helmet due to supervise and urge the company's security technology unit testing, qualified before being used.
12 logo and packaging
12.1 Each safety helmets shall have the following four permanent signs:
a. Name of manufacturer, trademark, model;
b. create year, month;
c. production certification and validation;
d. production license number.
12.2 helmet factory packing, should be for each hat liner paper or plastic film wrap to do then put cardboard boxes. The helmet into the box must be finished.
12.3 boxes should be marked with product name, quantity, weight, volume and other considerations such as tags.
12.4 helmets have to be attached to each box instructions.
