Technical Standards

Pipe threads where pressure-tight joints are made on the threads. Part 1: Dimensions, tolerances and designation.

Industrial valves – Pressure testing of valves.

Sampling plans and procedures for inspection by attributes.

Gauges – Construction characteristics and tolerances.

Malleable cast iron fittings, classes 150 and 300, with NPT threads for piping.

Coated and uncoated metallic materials – Corrosion by salt spray exposure.

Pipe threads where pressure-tight joints are not made on the threads – Designation, dimensions and tolerances.

Transportable steel cylinders for liquefied petroleum gas (LPG) – Requirements and test methods.

Valve mounting threads for transportable steel LPG cylinders – Dimensions.

Low-pressure regulators for liquefied petroleum gas (LPG) with capacity up to 4 kg/h.

Automatic valves for 2 kg, 5 kg and 13 kg transportable steel liquefied petroleum gas (LPG) cylinders.

Copper alloy ball valves for industrial use.

NPT pipe threads – Dimensions.

Adaptation of residential spaces for the installation of fuel gas appliances.

Rubber hoses for conveying LPG/NG/GNf gases.

Rubber hoses for conveying LPG/NG/GNf gases – General dimensions and tolerances.

Rubber hoses for conveying LPG/NG/GNf gases – Determination of length variation and resistance to test pressure and burst pressure.

Rubber hoses for conveying LPG/NG/GNf gases – Determination of resistance to burning when exposed to a small flame.

Rubber hoses for conveying LPG/NG/GNf gases – Determination of resistance to pentane (permeability).

Rubber hoses for conveying LPG/NG/GNf gases – Determination of flexibility.

Building LPG supply centers.

Building and industrial LPG supply centers – Bulk supply system.

Ball valves – Requirements.

Internal fuel gas distribution networks in residential and commercial installations – Design and execution.

Replaced by NBR15526.

Replaced by NBR15526.

Replaced by NBR15526.

Multilayer piping systems for conveying fuel gases.