Water quality. Determination of polycyclic aromatic hydrocarbons (PAH) - Determination of six PAH by high-performance liquid chromatography with fluorescence detection after liquid-liquid extraction1 Scope This part of ISO 7981 specifies the determination of six selected PAH in drinking, mineral and table waters and ground and surface waters in mass concentrations above 0,005 g l, by high performance liquid chromatography with fluorescence detection after liquid liquid extraction. The six PAH are: fluoranthene, benzo[b]fluoranthene, benzo[a]pyrene, benzo[k]fluoranthene, indeno[1,2,3 cd]pyrene, and benzo[ghi]perylene (see Table 1). With some

employees and self-employed persons who use personal fall protection systems and equipment

Information is also provided whereby the limiting dimensions for any other screw thread of Acme form may be determined

BS EN ISO 18278-1:2015 is a technical revision of the BS EN ISO 18278-1:2004 version which has been withdrawn

BS 3231 is an International Standard that discusses the technical specifications for thermographs (Bimetallic type)

ISO 9000:1987

This is considered to be the best model available to predict the likelihood of head injury from falls

5 Documented information

The Health and Safety Executive (HSE) L74 guidelines will also reference this standard

are protected from inferior first aid materials

The European Standards developed under this framework do not set the rules for how building assessment schemes may provide valuation methods

the names and versions of e-Invoicing messaging standards as well as the code-list versions

Quantitative criteria for acceptable performance should be established by agreement between manufacturer and user