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Preface This is the eleventh edition of CSA B52, Mechanical refrigeration code. It supersedes the previous editions published in 2005, 1999, 1995, 1992, 1991, 1983, 1977, 1965, 1951, and 1939. The 11th edition of this Standard provides the minimum requirements for the design, construction, installation, inspection, and maintenance of the mechanical refrigeration systems, and is complemented…

Scope 1.1 This Standard specifies safety requirements for pipelines for medical gases, medical vacuum, medical support gases, and anaesthetic gas scavenging systems in health care facilities, both public and private. It applies to all facilities providing health care services, regardless of type, size, location, or range of services, including, but not limited to (a) acute care hospitals; (b) in-…

1 Scope This method provides a means of determining the degree of corrosiveness of gasoline and middle distillate fuels to silver or silver alloys used in fuel system components. This method also applies to oxygenated gasoline and diesel blends, intermediate streams or blending components such as alkylate, reformate, and isomerate. The testing and evaluation of a product against this method…

Scope 1.1 This Standard applies to occupational diver trainees, training organizations, instructors, and facilities. It describes the requirements for trainee assessment, instructor qualifications, and minimum equipment for each level of training. This Standard also provides guidance on the auditing of diver training facilities and programs. Its purpose is to ensure that the competency levels…

Scope 1.1 This Standard covers welding requirements for carbon and low-alloy welded steel construction, with the exception of those types listed in Clause 1.2. Requirements that are essentially common to all such structures are covered in Clauses 3 to 10, while provisions applying specifically to statically-loaded structures and to cyclically-loaded structures are included in Clauses 11 and…

ISO 14113:2013 specifies requirements for rubber and plastics hose and hose assemblies for use with compressed, liquefied, and dissolved gases up to a maximum working pressure of 450 bar (45 MPa), within the ambient temperature range of −20 °C to +60 °C. It applies to hose assemblies used to connect industrial gas cylinders to manifolds or bundles prior to any pressure reduction stage. It does…

1 Scope This National Standard of Canada applies to automotive fuel composed of 50 to 85% by volume denatured fuel ethanol and gasoline strictly for use in flexible fuel vehicles over a wide range of climatic conditions. Fuel produced to this standard is not for use in conventional vehicles designed to operate on gasoline containing up to 10% by volume ethanol. Precautions for the use of…

ISO 1170:2013 gives equations that allow analytical data relating to coal and coke to be expressed on the various different bases in common use. Consideration is given to corrections that can be applied to certain determined values for coal prior to their calculation to other bases.

ISO 6517:2013 covers the minimum design and operational testing requirements for general purpose base-restrained containers exclusively intended for the lower deck compartments of main line civil transport aircraft, capable of being used by either airlines or shippers and requiring airworthiness authority approval (certification). ISO 6517:2013 does not cover the performance requirements and…

IEC 62321-2:2013 provides strategies of sampling along with the mechanical preparation of samples from electrotechnical products, electronic assemblies and electronic components. These samples can be used for analytical testing to determine the levels of certain substances as described in the test methods in other parts of IEC 62321. Restrictions for substances will vary between geographic…