Water quality. Determination of perfluorooctanesulfonate (PFOS) and perfluorooctanoate (PFOA). Method for unfiltered samples using solid phase extraction and liquid chromatography/mass spectrometry1 Scope This International Standard specifies a method for the determination of the linear isomers of perfluorooctanesulfonate (PFOS) and perfluorooctanoate (PFOA) in unfiltered samples of drinking water, ground water and surface water (fresh water and sea water) using high performance liquid chromatography tandem mass spectrometry (HPLC MS MS). Other isomers may be reported separately as non linear isomers and qualified as such. The analytes

Fire Alarm Warnings for Deaf and Hard of Hearing People

Organisations who manages road transport and highways

Annex D on determination of minimum grey values for CR practice has been introduced

(Devices commonly employed to achieve special effects in sound systems)

instructions for use and maintenance for domestic coffee makers with an independent heating system

BS 3181-1 is an international standard that focuses on the determination of cotton fibre properties by the airflow method

Table 1 – Maximum ARC response times from receipt of activation message

this European Standard can be taken into account when applied to existing lifts

and in the selection of personal safety equipment

— reliability

NOTE The titles of the publications referred to in this Part of BS 5892 are listed on the inside back cover

The measurement of disturbance power using an absorbing clamp is a method for the determination of the radiated disturbance in the frequency range above 30 MHz