MODUK - DTD-5637
Polyvinylbutyral for Aircraft Transparencies (04.85)
active, Most Current
| Organization: | MODUK |
| Publication Date: | 1 January 1985 |
| Status: | active |
| Page Count: | 10 |
scope:
The specification defines the requirements for the supply of plasticised polyvinyl butyral sheet material known hereafter as PVB, suitable for laminating aircraft transparencies. There are four types of plasticized PVB used in aircraft glazing, as follows:
Type 1 PVB plasticised with 19 parts per hundred by weight of DHA
TYPE 2 PVB plasticised with 36 parts per hundred by weight of plasticiser consisting of 82% by weight of DHA and 18% by weight of BBP.
Type 3 PVB plasticised with 21 parts per hundred by weight of DBS.
Type 4 PVB plasticised with 37.5 parts per hundred by weight of DBS.
NB. DHA is the abbreviation for di-hexyl adipate, BBP for benzyl butyl phthalate and DBS for di-n-butyl sebacate.
Document History
DTD-5637
January 1, 1985
Polyvinylbutyral for Aircraft Transparencies (04.85)
The specification defines the requirements for the supply of plasticised polyvinyl butyral sheet material known hereafter as PVB, suitable for laminating aircraft transparencies. There are four types...