工厂制造的密封双层平板玻璃单元的密封布置和制造的性能要求和相关试验方法。未指定单元的详细设计。交叉引用:BS 952BS 970:第4BS 1474CP 152部分

Performance requirements and associated test methods for the sealing arrangements and fabrication of factory made hermetically sealed flat double glazing units. Does not specify the detail design of units.Cross References:BS 952BS 970:Part 4BS 1474CP 152