Standards

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Gas welding equipment — Safety devices- Part 1: Devices not incorporating a flame (flashback) arrestor

This document specifies the general requirements and tests for safety devices for fuel gases and oxygen or compressed air which do not incorporate a flame (flashback) arrestor used downstream of manifold, cylinder and/or pipeline outlet regulators, and upstream of blowpipes for welding, cutting and allied processes. This document does not specify the location of these devices in the gas system. This document is not applicable to safety devices which incorporate a flame arrestor, covered by ISO 5175-1.

Voluntary Mechanical welding devices safety devices

GYS 142-2 - 2025

GYD 5,500 20 pages

Energy labelling - Air conditioners - Requirements

This document specifies the energy labelling requirements and the Minimum Energy Performance (MEPS) requirements for non-ducted air-conditioners, single-package or split-system, with only one interior unit, via the following parameters:

— Energy efficiency ratio (EER);

— Coefficiency of peformance (COP).

Voluntary Energy Labelling

GYS 578 - 2021

GYD 5,500 18 pages