A protective garment (10) including a first portion (16) which is generally impermeable to gases and a second portion (18) which is generally impermeable to gases.

The sheath (36) is substantially gas and water impervious.

The displaceable contact piece (5) is sealed gas-proof in relation to the encapsulated housing (1).

The microtensiometer includes a sensor body comprising a first gas-impermeable layer, an opposing second gas-impermeable layer, and a porous membrane layer disposed therebetween.

The sheet material is impermeable to the gas or semi-permeable to oxygen.

The interior wall of the hollow body is lined with a gas-impermeable inner sack (21, 22) and the outer shell of the hollow body (15) is surrounded by a gas-impermeable cover (14; 5).

A paper container having gas barrier properties which is produced using a laminate comprising (I) a paper layer (101), (II) a gas barrier layer (103), and (III) an epoxidized resin composition layer (104).

A gas-impermeable bag is swen in position between the fabric layers (2).

The liner further comprises a flat ring-like membrane substantially impermeable to gas.

The nozzle includes a substantially gas-impermeable liner (9) surrounded by a permeable composition (10).

The shaft is passing through the side wall of a gastight compartment and/or a housing.

It is highly impermeable to gases, particularly oxygen.

Upon curing the sealant (18), a substantially gas impermeable graphite plate is provided.

The thermal insulation material protection layer is made of a material impervious to gas.

The apparatus includes a portage flexible gas storage container (1) of material which is substantially impermeable to SF6 gas.