Installation and maintenance of gas-fired ducted air heaters of rated input not exceeding 70 kW net (2nd and 3rd family gases). SpecificationBS 5864: 2004 specifies the selection, installation and maintenance (see Note 1) of flued, gas fired, ducted air heaters of rated input not exceeding 70 kW, based on net calorific value, burning 2nd or 3rd family gases to heat one or more rooms or internal spaces in either domestic premises (see Note 2) or commercial premises. It is applicable to warm air heaters that incorporate a fan to circulate the warm air. It is also applicable to combined air

General principles of highly accelerated tests

BS 5839-1:2017 is the current code of practice on the design

Energy companies

and can be applied by a rack or barrel plating processes

Prudential Regulation Authority or The Pensions Regulator

these are defined as such

BS EN 792 applies to hand-held non-electric power tools driven by rotary or linear motors

Who is BS EN 16523‑1- Test method for permeation by potentially hazardous liquid chemicals for

• Practical guideline for quality approaches

Specialist contractors

BS EN 1434‑6:2015+A1:2019 supersedes BS EN 1434‑6:2015

Pillows (whatever the filling) and bolsters