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Volkswagen Golf Service & Repair Manual: Vapour pressure

In an enclosed container that is not completely full, refrigerant evaporates as vapour at the surface in a quantity sufficient to form an equilibrium between vapour and liquid. This equilibrium develops under pressure and is often called vapour pressure. The vapour pressure is temperature-dependant → Chapter.
   
Physical properties of R134a
Because the vapour pressure curves of R134a and other refrigerants are in part very similar, unique identification on the basis of pressure alone is not possible.
The air conditioner compressor used for R134a is lubricated with special synthetic refrigerator oils, such as PAG oils (polyalkylene glycol oils).
Trade names and designations
Refrigerant R134a is currently available under the following trade designations: H-FKW 134a SUVA 134a ...

Effects on metal
In its pure state, refrigerant R134a is chemically stable and does not attack iron or aluminium. However, impurities such as chlorine compounds in th ...

Other materials:

Wire strippers -VAS 1978/3-
Wire strippers -VAS 1978/3- serve as a means of stripping insulation off wires and cutting wires in the correct manner. Wire strippers -VAS 1978/3- are included in wiring harness repair set -VAS 1978 B- and previous versions. ...

Introduction
This repair manual is intended to provide technicians and fitters with the basic knowledge required for performing trained work on these systems.   Note Successful completion of a training course such as AB160 or ST160 ...

Assembly overview - brake pedal, RHD vehicles
  Note The handbrake pedal travel must not be restricted by additional floor coverings. Do not lubricate or grease the pivot pin. The pivot pin must remain dry. 1 -  Bolt 20 Nm 2 -  ...

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