Anaesthetic and analgesic machines - Specification for intermittent (demand) flow analgesic machines for use with 50/50% (V/V) nitrous oxide and oxygen1 Scope This Part of BS 4272 specifies general design and performance requirements for analgesic machines of the intermittent flow (demand flow) type for use with 50 50 % (V V) mixture of oxygen and nitrous oxide contained in one cylinder, (hereinafter referred to as "analgesic machines"). This standard applies to analgesic machines intended for: a) connection directly to a high pressure (approximately 17 MPa) cylinder; and b) connection to a low

This document does not apply to cellular plastics

Definitions for some field-related basic terms

BS EN BS CECC 90300 on quality assessment of integrated circuits is useful for:

BS EN 15221-2 does not replace any specialized standards related to services within the scope of the Facility Management agreement

Policy and objectives

They are for use with fluids in the temperature range −40 °C to +135 °C

more complex

including the valves and steam and water fittings

11 contains the prism test method and was prepared under the direction of the Refractory Products Standards Committee

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but excluding interchangeable outlet accessories such as aerators

Annex A (normative) Principles of design to ensure the cleanability of rotary rack ovens