Petroleum, petrochemical and natural gas industries. Aircooled heat exchangers1 Scope This International Standard gives requirements and recommendations for the design, materials, fabrication, inspection, testing and preparation for shipment of air cooled heat exchangers for use in the petroleum, petrochemical and natural gas industries. This International Standard is applicable to air cooled heat exchangers with horizontal bundles, but the basic concepts can also be applied to other configurations.

BS EN 2591-6306 on the method for checking mould growth in optical elements is relevant to:

Bedding layers

Fixed immersion heaters

BS IEC 61747‑30‑5 focuses on three particular aspects of the transparent properties

— exposure to corrosive environments

Making and curing specimens for strength tests

ISO 19967-1 on heat pump water heaters provides a clearer idea about thermostat settings and settings for supplementary electrical heaters according to the installations and operating instructions making it feasible for the test providers to obtain general information about the contents of the test report

but in addition permits the use of those grades of ASTM steels which are specified in the ISO standard for use with the ANSI/ASME based flanges

A new sub-clause 4

Why should you use BS 5583 - Low voltage switchgear and control gear

Manufacturers of medullary pins (Rush type) and introducer/extractors

Who is BS EN 81‑71-Safety rules for the construction and installation of lifts for