Iranian Classification Society Rules

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Section 13 FRP Ships


1301. Application

The requirements in this Section apply to tests and inspection for the approval of manufacturing process of Fibreglass Reinforced Plastic Ships (hereinafter referred to as FRP ships) as specified in "Rules for Classification of Fibreglass Reinforced Plastics Ships" and "Rules and Guidance for the Classification of High Speed and Light Crafts".


1302. Data to be submitted

The following data are to be submitted to the Society in addition to those specified in 102.

(1) Data described manufacturer's name and product name for polyester resins, fibreglass reinforcing materials, core materials for sandwich construction, etc.

(2) Test methods and test records of the FRP test specimens cut from FRP which are of the same

laminate composition and moulded by the same procedure and at the same workshop as the ac- tual hull laminates (including tensile strength, tensile modulus, flexural strength, flexural mod- ulus, barcol hardness, glass content, specific gravity, etc., and test report of shearing strength in case of sandwich construction)


1303. Workshops

The workshops manufacturing FRP ships intended to be registered to


the Society, are to comply

with the requirements in Table 2.13.1 to maintain sufficient mechanical properties and a good qual- ity of moulding.


Table 2.13.1 Facility standard for FRP ship manufacturing workshop


Facility

Equipment

Facility standard


General

(1) The laminating shops are to be of such construction as to be free from pene- tration of draught, dust and moisture, and to be provided with heating system to keep to keep the temperature above 15 °C. In this case, the method parti- ally beaming the infrared rays is not to be generally permitted. (Recommended air temperature and humidity are 18°C to 22 °C and 60 % to 70 % respectively)

(2) The shops are to be designed so that resin and fibreglass are not to be de- teriorated with the elapse of the time and the fibreglass reinforcements are not to be contaminated by soil, dust, moisture, etc.

(3) The standard specification for the construction and repair of FRP ships shall be clearly established and moulding of FRP is to be carried out under the supervision of a well-experienced technical expert.


Standard of facilities

The manufacturer of FRP ships is to provide with the facilities which can manu- facture the FRP ships about G/T 20 tons by hand lay-up.


Laminating shops


Area

The laminating shops are to have sufficient spaces to carry out the laminating works and mould releasing operation for the largest ships intended to be manufactured.


Structural con- ditions

The structure of the laminating shops is to be of an steel frame or an steel-concrete. The ceiling and surrounding walls are to be of a fireproof struc- ture and to be protected against moisture, rain and draught, and the ground is to be of concrete construction. For the purpose of sun lighting, the partial use of inflammable materials for the ceiling may be allowed. A sufficient spaces carry- ing out the outfitting works are to be arranged not to cause inconvenience in do- ing their works, or their works are to be carried out in the separated room.


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Table 2.13.1 Facility standard for FRP ship manufacturing workshop (continued)


Facility

Equipment

Facility standard


Facilities in laminating shops


Temperature con- ditioners

The laminating shops are to have temperature conditioners not to fall below 15°C in winter season and rise above 30 °C in summer season at one metre distance from the floor level.

Ventilation sys- tems

Ventilation systems in accordance with the relevant law are to be provided to ex- haust styrene gases and other harmful gases.


dust collectors

The suitable dust collectors are to be provided in order to exhaust dusts yielded during laminating operation.


Lighting and shields

Lighting equipment are to be so arranged that the operation of laminating are not disturbed. Also, the skylights and windows of the laminating shops are to be provided with suitable means of shielding so that the laminates are not exposed to direct sunlight.

Transportation

Transportation equipment of suitable capacity are to be provided and arranged.


Fire fighting and detection systems

Fire fighting and detection systems are to be provided in accordance with the relevant law. The caution sign of "Flammables" is to be indicated in shops. The smoking room is to be arranged outside the laminating shops.

Electric equip- ment

Electrical equipment in the laminating shops is to be of explosion-protected elec- trical appliance, except that the ventilation systems are provided completely.


Glass cutting

The glass cutting tables are to be so arranged as to be properly subdivided or separated from the laminating shops.


Resin mixing

The mixing equipment and the weighing machines are to be provided in any case. Where the resin mixing room is provided, it is to be of a fireproof construction.


Cleaning

The separated room with the ventilator is to be provided so as to clean the lami- nating equipment and FRP components weighing machines.


Other facili- ties of the laminating shops


Storage

A catalyst, resin, solvent, etc., are to be stored in cool and dark spaces in ac- cordance with the relevant law, and the fibreglass reinforcements and core materi- als are to be stored in dust-free and dry spaces.


Sanitary

A washstand, a bathroom, necessary medicine for eye-washing, etc., are to be provided considering the number of workers.


Storage for moulds

Moulds used repeatly are to be stored free from rain and wind, and they are to be properly kept so that the internal surface of moulds can not be contaminated and distorted.


Air compressor

The air compressors of suitable capacity with an air cleaner are to be provided outside the laminating shops.


Management of waste matter

The incinerators for waste matters are to be equipped and the waste matters are to be treated considering a fire and environmental pollution. Where the in- cinerator is not provided, the waste matters are to be requested to the speciality dealers concerned of industrial waste products. Also, the procedure of manage- ment for ashes incinerated and incombustibles is to be established in accordance with the relevant law.


1304. Approval tests


1. Approval test is to be carried out for FRP(including FRP laminates and sandwich for hull construction of FRP ships.


laminates) used


2. Construction of FRP test sample and approval test are to be conducted in accordance with the re- quirements in Ch 3, 301. and 302. of the Rules for Classification of Fibreglass Reinforced Plastics Ships.

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3. Tests specified in the preceding 2 are to be carried out in the presence of the Society's Surveyor.

Where tests are carried out by a recognized inspecting agency, it may be omitted at the

of the Society.

discretion


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