Petroleum, petrochemical and natural gas industries. Pressure-relieving and depressuring systemsBS EN ISO 23251 applies to pressure relieving and vapour depressuring systems. Although intended for use primarily in oil refineries, it is also relevant to petrochemical facilities, gas plants, liquefied natural gas (LNG) facilities and oil and gas production facilities. The information provided is designed to aid in the selection of the system that is most appropriate for the risks and circumstances involved in various installations. This

It is designed to achieve customer

The test method outlined in BS 5131-1

dimensional accurancy

Contents of BS EN 3373-014:

BS EN 60079-1 first looks at the levels of protection and ignition compliance requirements of electrical equipment – for example levels ia

Information to be supplied by the manufacturer􀀃

The scope of the standard covers two-pole plus earth conversion plugs that are either reusable or non-reusable and that are suitable for the connection of non-BS 1363 type plugs

7 Ergonomics

Institute of Hospitality

ISO/IEC Guide 39:1988

Many digital printing devices produce printed pages at a different rate than their nominal speed when running with different modes (simplex

• Annex H (normative) Factory production control