本标准确保在大气中的气体浓度达到能够造成危险的水平之前，向人员发出有泄漏气体存在的警告。它确定了何时何地需要加臭作为检测手段，以及在何处可以使用其他检测手段。此外，该标准规定了气体中的最低加臭剂浓度，其中包括允许人类嗅觉反应的广泛变化，并对嗅觉测试提出了要求。本标准纳入并取代了《新西兰天然气加臭实用规程》（NG GCP 3: 1993).

This standard ensures that persons are warned of the presence of escaping gas well before gas concentrations in the atmosphere reach levels capable of causing a hazard. It identifies when and where odorization is required as the means of detection and where other means of detection can be used. In addition, the Standard specifies minimum odorant concentrations in gas, which include an allowance for wide variation in human olfactory responses and makes requirements for olfactory tests. This Standard incorporates and replaces the requirements of the New Zealand Gas Code of Practice for Odorisation of Gas (NG GCP 3:1993).