Verification Method G12/VM1: Water Supply Pipework Sizing

Abbreviation
G12/VM1 (Amd 13)
Amendment
13
Version
Third Edition, Amendment 13
Valid from
2/11/2023

Information provider
Ministry of Business, Innovation and Employment
Information type
Verification Method
Format
PDF


Description

Verification Method G12/VM1 provides a means of compliance with Building Code Clause G12 Water Supplies. Building Code Clause G12 requires the safe supply, storage, reticulation and delivery of hot and cold water.

The loading unit method of the Plumbing Engineering Services Design Guide is a means of establishing maximum simultaneous flow rates for use in sizing hot and cold water supply systems to comply with NZBC clause G12.

Scope

The application of the loading unit method referenced in Verification Method G12/VM1 to the sizing of hot and cold water services requires the application of specialist knowledge, experience and judgment.

Note: Previous amendments to G12/VM1 referenced earlier editions of AS/NZS 3500.1 and AS/NZS 3500.4. These standards are now referenced in G12/AS3.

For assistance with locating previous versions, please contact the information provider.
Notes/comments

Amendment 13 of G12 includes alterations on:

  • pp. 2A-2B Document History, Status
  • p. 5, 6 Contents
  • pp. 7-10a References
  • pp. 11-13 Definitions
  • p. 15 G12/VM1 1.0, 1.0.1
  • p. 17 G12/AS1 1.0.1, 2.13, 2.2.1, 2.2.3
  • p. 18 G12/AS1 Table 1, 3.3.1
  • p. 19 G12/AS1 3.3.2, 3.3.3, 3.4.3
  • p. 19A G12/AS1 3.4.6, 3.4.7, 3.5, 3.5.1, 3.5.2, 3.5.3, 3.5.4, 3.6, 3.6.1, 3.6.2, Table 2
  • p. 19B G12/AS1 Table 2A
  • p. 20 G12/AS1 3.6.3, 3.6.4, 3.7, 3.7.1, Figure 1
  • p. 21 G12/AS1 3.7.2, 3.7.3, 3.7.4,
  • p. 23 G12/AS1 3.8, 3.8.1, 3.8.2, 3.7.3 (deleted), 3.8.4, 4.3.1
  • p. 24 G12/AS1 5.1.1, 5.1.2, 5.2.2, 5.2.8
  • p. 25 G12/AS1 5.3, 5.3.1, 5.3.2, 5.3.3
  • p. 26 G12/AS1 5.4, 5.4.1, Table 3, Table 4
  • p. 27 G12/AS1 5.4.2 (deleted), 5.5, 5.5.1, 5.5.2, 5.5.3, Figure 5, 6.1.2, 6.2.2
  • p. 28 G12/AS1 Table 5,
  • p. 29 G12/AS1 6.3.3, Figure 7
  • p. 30 G12/AS1 Figures 8(a) and 8(b)
  • p. 32 G12/AS1 Figure 11
  • p. 33 G12/AS1 6.6, 6.6.1, 6.6.3, 6.6.5
  • p. 33A G12/AS1 6.6.7, 6.6.8, Table 7
  • p. 33B G12/AS1 6.7.2
  • p. 34 G12/AS1 Figure 12, 6.7.7
  • p. 35 G12/AS1 Figure 13, 6.8.3
  • p. 36 G12/AS1 Figure 14, 6.13.1, 6.13.2 (deleted)
  • p. 37 G12/AS1 Figure 15, 6.14.1, 6.14.2, Figure 16, 6.14.3
  • p. 38 G12/AS1 6.14.3,6.14.4, Table 8A, Table 8B, Table 9,
  • p. 39 G12/AS1 7.3. 7.3.1, 7.4, 7.4.1, 7.4.2, 7.4.3, 7.5, 7.5.1, 7.5.2 & 7.5.3 (deleted), Table 10, 7.6, 7.6.1, 7.6.2, 7.7, 7.7.1
  • p. 41 G12/AS1 Figure 18, 8.0, 8.0.1
  • p. 53 G12/AS2 5.2.5, 5.2.6
  • p. 54 G12/AS2 Figure 6
  • p. 55 G12/AS2 5.3.3
  • p. 64a New Acceptable Solution G12/AS3 included
  • pp. 65-68 Index
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For assistance with locating previous versions, please contact the information provider.

Amendment 13 of G12 includes alterations on:

  • pp. 2A-2B Document History, Status
  • p. 5, 6 Contents
  • pp. 7-10a References
  • pp. 11-13 Definitions
  • p. 15 G12/VM1 1.0, 1.0.1
  • p. 17 G12/AS1 1.0.1, 2.13, 2.2.1, 2.2.3
  • p. 18 G12/AS1 Table 1, 3.3.1
  • p. 19 G12/AS1 3.3.2, 3.3.3, 3.4.3
  • p. 19A G12/AS1 3.4.6, 3.4.7, 3.5, 3.5.1, 3.5.2, 3.5.3, 3.5.4, 3.6, 3.6.1, 3.6.2, Table 2
  • p. 19B G12/AS1 Table 2A
  • p. 20 G12/AS1 3.6.3, 3.6.4, 3.7, 3.7.1, Figure 1
  • p. 21 G12/AS1 3.7.2, 3.7.3, 3.7.4,
  • p. 23 G12/AS1 3.8, 3.8.1, 3.8.2, 3.7.3 (deleted), 3.8.4, 4.3.1
  • p. 24 G12/AS1 5.1.1, 5.1.2, 5.2.2, 5.2.8
  • p. 25 G12/AS1 5.3, 5.3.1, 5.3.2, 5.3.3
  • p. 26 G12/AS1 5.4, 5.4.1, Table 3, Table 4
  • p. 27 G12/AS1 5.4.2 (deleted), 5.5, 5.5.1, 5.5.2, 5.5.3, Figure 5, 6.1.2, 6.2.2
  • p. 28 G12/AS1 Table 5,
  • p. 29 G12/AS1 6.3.3, Figure 7
  • p. 30 G12/AS1 Figures 8(a) and 8(b)
  • p. 32 G12/AS1 Figure 11
  • p. 33 G12/AS1 6.6, 6.6.1, 6.6.3, 6.6.5
  • p. 33A G12/AS1 6.6.7, 6.6.8, Table 7
  • p. 33B G12/AS1 6.7.2
  • p. 34 G12/AS1 Figure 12, 6.7.7
  • p. 35 G12/AS1 Figure 13, 6.8.3
  • p. 36 G12/AS1 Figure 14, 6.13.1, 6.13.2 (deleted)
  • p. 37 G12/AS1 Figure 15, 6.14.1, 6.14.2, Figure 16, 6.14.3
  • p. 38 G12/AS1 6.14.3,6.14.4, Table 8A, Table 8B, Table 9,
  • p. 39 G12/AS1 7.3. 7.3.1, 7.4, 7.4.1, 7.4.2, 7.4.3, 7.5, 7.5.1, 7.5.2 & 7.5.3 (deleted), Table 10, 7.6, 7.6.1, 7.6.2, 7.7, 7.7.1
  • p. 41 G12/AS1 Figure 18, 8.0, 8.0.1
  • p. 53 G12/AS2 5.2.5, 5.2.6
  • p. 54 G12/AS2 Figure 6
  • p. 55 G12/AS2 5.3.3
  • p. 64a New Acceptable Solution G12/AS3 included
  • pp. 65-68 Index
This resource is not cited by any other resources.

Verification Method G12/VM1: Water Supply Pipework Sizing

This document is not CITED BY any other resources:

Verification Method G12/VM1: Water Supply Pipework Sizing

Description

Verification Method G12/VM1 provides a means of compliance with Building Code Clause G12 Water Supplies. Building Code Clause G12 requires the safe supply, storage, reticulation and delivery of hot and cold water.

The loading unit method of the Plumbing Engineering Services Design Guide is a means of establishing maximum simultaneous flow rates for use in sizing hot and cold water supply systems to comply with NZBC clause G12.

View on Information Provider website Download this resource (PDF, 3.1MB)
Verification Method G12/VM1: Water Supply Pipework Sizing
Description

Verification Method G12/VM1 provides a means of compliance with Building Code Clause G12 Water Supplies. Building Code Clause G12 requires the safe supply, storage, reticulation and delivery of hot and cold water.

The loading unit method of the Plumbing Engineering Services Design Guide is a means of establishing maximum simultaneous flow rates for use in sizing hot and cold water supply systems to comply with NZBC clause G12.

View on Information Provider website Download this resource (PDF, 3.1MB)
This resource cites:

Verification Method G12/VM1: Water Supply Pipework Sizing

This document CITES:
New Zealand Standards
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