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1 Scope 1.1 This Standard covers crosslinked polyethylene (PEX) pipe and fittings for use in gas mains and services, including gas gathering, gas transmission, and distribution of fuel gases. 1.2 This Standard covers PEX pipes in metric nominal sizes DN 16 to DN 1000 or nominal pipe sizes NPS-3 to NPS-54 that are a) pressure-rated using the hydrostatic design basis (HDB) rating method…

1 Scope This part of lEC 60320 sets the general requirements for appliance couplers for two poles and two poles with earth contact and for the connection of electrical devices for household and similar onto the mains supply. This part of lEC 60320 is also valid for appliance inlets/appliance outlets integrated or incorporated in appliances. The rated voltage does not exceed 250 V (a.c.) and…

1 Scope 1.1 The requirements of this Standard apply to materials, constructions, and testing of tree-retardant cross- linked polyethylene and ethylene propylene rubber-insulated single conductor or triplexed primary shielded and concentric neutral power cables rated 15 to 46 kV that are used for the transmission and distribution of electrical energy. The products covered by this Standard are…

1 Scope 1.1 This Standard applies to the materials, construction, and testing of one- to four-conductor cross-linked polyethylene and ethylene propylene rubber-insulated shielded power cables, rated 5–46 kV, that are used for the distribution of electrical energy under normal conditions of installation and service in indoor, outdoor, aerial, underground, or underwater locations. 1.2 This…

1 Scope 1.1 General 1.1.1 This Standard applies to occupational diving operations conducted in connection with all types of work and employment, and describes the requirements for occupational safety. Note: It is recognized that certain underwater tasks might require specialized standards of practice and/or operational techniques that differ from the requirements of this Standard yet may be…

This standard applies to two types of diesel fuel, Type A, Bx and Type B, Bx. Both are suitable for use in high-speed diesel engine powered equipment for on-road and off-road applications and in select equipment powered by medium speed diesel engines. Bx represents biodiesel fuel containing x percent by volume of biodiesel component in the range of 1.0 to 5. Type A, Bx is intended for use in…

This standard applies to Type B, Bxx diesel fuel containing from 6% to 20% by volume of biodiesel. Fuel meeting this standard is intended for use in high-speed diesel powered equipment for on-road and off-road applications and in select equipment powered by medium-speed diesel engines. Users of fuel meeting this standard are advised to refer to the owner’s manual of their vehicle, engine or…

This standard applies to three types of middle distillate fuel oils that are suitable for use in liquid fuel burning equipment without preheating (Types 0, 1 and 2), and three types of fuel oils that contain residual fuel components and require preheating (Types 4, 5 and 6). The heating fuel oils covered by this standard are intended for use in oil burning equipment to generate heat for…

This standard applies to two types of diesel fuel, Type A and Type B. Both are suitable for use in high-speed diesel engine powered equipment for on-road and off-road applications and in select equipment powered by medium speed diesel engines. Type A is intended for use in selected applications such as urban buses and underground mining or when ambient temperatures require better low-…

Purpose This standard specifies the requirements that institutions are expected to meet in the design and delivery of all components of their health education programs to ensure they are effective and integrated. This standard provides: Educational institutions and clinical settings with national guidance on program quality for health education programs. Regulators with a national standard on…