New Zealand Draft Standards
Draft Standards are available for public comment for a specified period (usually 8 weeks). Standards proposed to be withdrawn are open for comment for 2 weeks. Drafts can be downloaded free. You can browse drafts or search for specific drafts by selecting draft status and using a keyword or number.
DZ 3104 (Committee P3104)
Specification for concrete production
NZS 3104:2003 Specification for concrete production sets the minimum requirements for the production of fresh concrete. The standard was last amended in 2010 (Amendment No. 2) to incorporate more than one type of mechanism used for weigh systems. The much-needed revision of NZS 3104 will update the standard to align with current practice and allow for better control of the manufacture of concrete. This revision of NZS 3104:2003 Specification for concrete production will reflect current recognised practice and will: • allow an alternative method to calculate target mean concrete compressive strength based on normal distribution theory in clause 2.13 • update other clauses throughout the standard relating to the introduction of the alternative method • clarify and update clauses throughout the standard to reflect current practice and technology. We are now making the draft available for public comment for a period of 8 weeks. All comments submitted during this period are reviewed by the standards development committee before the standard is balloted on. The closing date for comments is 21 June, 2020. You can submit your comments via the below button, or alternatively you can download and complete the public comment form, available at http://standards.govt.nz/assets/Drafts/DZ-3104-PC-form-V2.docx
Closing date for comments 21/06/2020