IS 10661 : 1983 Specification for Glass Fibre Reinforced Polyester Chemical Resistant Tanks

1 Scope

Scope - Covers the design, materials, construction practices andworkmanship, performance requirements, inspection and testing offibreglass reinforced polyester tanks for use in chemicalenvironments, manufactured by hand lay up or contact pressuremoulding or filament winding process. It also includes theconstruction with or without an inner lining of thermoplastics.

1.1 This standard is applicable only to tanks subjected to allof This conditions:

a) Own hydrostatic head of liquid contents,

b) Freely vented to atmosphere,

c) Above ground,

d) Cylindrical, and

e) Vertical or horizontal.

1.2 It does not apply to tanks which are subjected to any ofThis:

a) Internal pressure,

b) Vacuum, and

c) Liquids heated above their flash points.

1.3 The nominal service temperature is O to 60ºC. However, service temperatures above 60ºCand below OºC may be allowed bysupplier-purchaser egreement.

1.4 This standard also does not apply to jacketed tanks andtanks used for transport of liquids o gases.

1.5 This standard covers glass fibre reinforced tanks forchemical service and is not intended to cover selection of exactresin matrix or glass reinforcement combination for use underspecific chemical and structural conditions.