Standards New Zealand

Glazing in buildings Part 3: Human impact safety requirements
 N NZS 4223.3

Annotation

NZS 4223.3 specifies minimum requirements for glass selection and glazing in locations subject to human impact and safeguarding against falls.

All glazing wholly or partly within 2000 mm of the floor or ground level and that is not protected from human impact is covered by this part of NZS 4223.

The following are excluded from the scope of NZS 4223 Parts 1, 2, 3, and 4:

(a) Glazing protected from human impact or above 2000 mm of the floor or ground level;

(b) Glazing in lift cars and liftwells (refer to NZS 4223.1, Appendix A for guidance);

(c) Furniture glass, cabinet glass, vanities, glass basins, refrigeration units, internal glass fitments and glass wall linings, framed internal wall mirrors, and mirrors not specifically covered by these parts;

(d) Buildings and structures with no public access intended for non-habitable building structures for horticultural or agricultural use;

(e) Restoration or repairs to existing decorated glass;

(f) Glazing applications that might fail due to stresses other than tensile stresses, such as glass floors;

(g) Plastic glazing materials;

(h) The construction and installation of windows (refer to NZS 3504, NZS 3619, and NZS 4232.2);

(i) Glass blocks, pavers, slumped, formed, or cast glass;

(j) Point-fixed or point-supported systems, used for glazing, cladding, signage, and the like, not specifically covered by these parts (refer to Part 1 for design criteria and guidance for specific design).