Essential oils. Determination of ester values, before and after acetylation, and evaluation of the contents of free and total alcohols1 SCOPE This International Standard specifies a method to evaluate the contents of free alcohols and total alcohols in essential oils by determination of ester values before and after acetylation by acetic anhydride in the presence of sodium acetate. The method is not applicable to essential oils containing appreciable quantities of tertiary alcohols (for example linalol and terpineols), which would not be completely acetylated. NOTE: For these

These signals are typically transmitted in networks by frequency-multiplexing techniques

in a reflective or a magneto optic (MO) layer

mechanical properties and fastening characteristics of test screws

The Multimedia Systems Services encompasses the following characteristics:

or explicitly stated to have been left intentionally undefined

The mould area is protected by guards

MIC distributions can be used to define wild type or non-wild type bacterial populations

all pieces of equipment necessary for the intended mode of operation

This can ensure that barges comply with national shipbuilding standards and are safe while operating

or houses of multiple occupancy

BS EN 4329 creates a standardized approach for manufacturers of heat-resisting alloy and filler metal

PD CEN/TS 54-14 on fire detection and fire alarm systems is relevant to: