Hazardous Substances Regulations




844 NEW ZEALAND GAZETTE No. 35

Pressure Management

16 Design, construction, installation, and operation of above ground stationary tank for gases for pressure management

(1) Every above ground stationary tank used to store gases must be designed, constructed, installed, and operated so as to ensure that the pressure or vacuum resulting from the conditions referred to in subclause (2) will not cause either of the following:

(a) stress in excess of the maximum design stress of the tank:

(b) the tank to collapse.

(2) The conditions are—

(a) filling or emptying the tank; and

(b) changes in atmospheric temperature.

17 Emergency pressure management for above ground stationary tank for gases

(1) Every above ground stationary tank used to store gases must have an emergency pressure management system that ensures that the maximum design stress of the tank is not exceeded in any reasonably likely event.

(2) An above ground stationary tank used to store a class 2.1.1 low pressure liquefiable gas complies with subclause (1) if it complies with—

(a) section 3.4 of AS/NZS 1596; or

(b) it complies with a code of practice approved by the Authority under section 79 of the Act that specifies requirements equivalent to the requirements specified in paragraph (a).

Part 5

Separation of above ground stationary tanks used to store hazardous substances

Separation between above ground stationary tanks containing hazardous substances of the same class

18 Separation between above ground stationary tanks containing class 2.1.1 substances

(1) An above ground stationary tank that contains a class 2.1.1 permanent gas must be separated from—

(a) another above ground stationary tank that contains a class 2.1.1 permanent gas by a distance of not less than 1 metre; and

(b) an above ground stationary tank that contains a class 2.1.1 liquefiable gas by a distance not less than—

    (i) for quantities of class 2.1.1 permanent gas not exceeding 100 m³, 3 metres; or

    (ii) for quantities of class 2.1.1 permanent gas exceeding 100 m³ but not exceeding 500 m³, 5 metres; or

    (iii) for quantities of class 2.1.1 permanent gas exceeding 500 m³, 10 metres.


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Online Sources for this page:

VUW Te Waharoa PDF NZ Gazette 2004, No 35


Gazette.govt.nz PDF NZ Gazette 2004, No 35





✨ LLM interpretation of page content

🏥 Amendments to Hazardous Substances Regulations (continued from previous page)

🏥 Health & Social Welfare
Regulations, Hazardous Substances, Pressure Management, Emergency Pressure Management, Separation, Stationary Tanks, Gases, Class 2.1.1 Substances