✨ Timber Preservation Branding Regulations
13 MARCH
THE NEW ZEALAND GAZETTE
1129
2.2 Burn Brand
Means method of applying a brand to timber by means of heated branding irons. Letters and numbers shall be not less than 10 mm in height.
2.3 End Brand
Means the position of application of a brand as described in clause 2.1 above. This shall be on or within 150 mm of the end of the piece of sawn timber or roundwood.
2.4 Surface Brand
Means a brand placed on the face, back or edge of treated timber by incising or branding with a permanent ink approved by the Authority. Such brand will be in letters not less than 10 mm high and shall as a minimum embody the Hazard rating, and the registered number or trade name approved by the Authority for the organisation performing the branding. Face brand has a corresponding meaning.
2.4.1. Repetitive Surface Brand
Means a surface brand as defined in clause 2.4 above. The brand must repeat at not more than 600 mm centres.
2.5 Incised Brand
Means a surface brand impressed on to machined timber as described in subclause 2.4.1 above.
2.6 Packet Brand
Means a weather resistant, legible brand placed on each side and the top of a packet of treated timber as detailed in clause 2.1 except that letters shall not be less than 200 mm in height. “Packet” for the purpose of this clause means a made up bundle of timber for subsequent handling as a single unit.
2.7 Disc Brand
Means an aluminium disc or other approved material recessed so that the crown shall be not less than 2 mm from the surface of a pole and centred 3 m from the butt end. The disc shall be 50 mm in diameter and shall contain as a minimum, information in the manner described in clause 2.1.
2.8 Steam Brand
Means a brand with a 20 mm horizontal straight line immediately under the hazard number.
2.9 Registered Number
Means a number allocated to the plant or timber merchant and approved by the Authority in writing in accordance with regulation 9 of the Timber Preservation Regulations 1984.
2.10 Hazard Rating
Means the letter ‘H’ followed by the number of the rating as set out in the publication New Zealand Timber Preservation Authority Specifications.
2.11 Roundwood
Means round posts, poles, piles and stays and also includes “half rounds” and “quarter rounds” sawn before treatment.
2.12 Remote from site
Means at a place outside the premises on which the treatment plant is located.
- Sawn Timber
3.1 Rough Sawn Timber
All treated timber whether rough sawn or machined shall be end branded as described in clause 3.1 except as exempted by clause 3.2 or 3.3.
3.1.1 Treated sawn timber which is subsequently machined at or adjacent to the treatment plant for subsequent finger jointing remote from the site, shall be packet branded as detailed in clause 2.6.
3.1.2 Treated timber cut at or adjacent to the treatment plant for subsequent finger jointing remote from the site, shall be packet branded as detailed in clause 2.6.
3.1.3 Sawn timber treated to Hazard rating H4 or to a higher Hazard rating and no longer than 1.5 m nor greater than 5000 m² in cross section may be packet branded in accordance with clause 2.6, e.g., crib walling, fence stakes.
3.1.4 Produce steamed as part of the treatment process shall be identified with a 20 mm straight line under the Hazard rating when the cross section of sawn timber is 15000 mm² or greater.
3.2 Machined Timber
All timber which is dressed or planer gauged prior to or subsequent to preservative treatment shall be repetitively surface branded in accordance with clause 2.4.1 above except:
3.2.1 Dressed timber that is less than 20 percent in moisture content, except for fascia weather boards and flooring, may be either:
3.2.1.1 Branded with a single surface brand within 150 mm of the end
or
3.2.1.2 End branded as detailed in clauses 2.1, 2.2, and 2.3.
3.2.2 Timber which is dressed or planer gauged on less than four (4) surfaces shall either be surface branded in accordance with subclause 2.4.1 above or end branded in accordance with clause 2.3.
3.2.3 Timber which is dressed or planer gauged remote from the site before treatment shall not be surface branded prior to treatment but shall be end branded at the treatment plant in accordance with clause 2.3 above. In addition, the edge of each piece of the outer tiers of the packets is to be burn branded not less than 1 m from the butt end.
3.2.4 Finger jointed material treated to any Hazard Class shall be branded in accordance with clause 3.
3.2.5 Produce steamed as part of the treatment process shall be identified as described in 3.1.4.
3.3 Exemptions from the need to Brand
3.3.1 Fence battens and droppers.
3.3.2 Timber 1250 mm² and less in cross section.
3.3.3 timber less than 19 mm nominal sawn dimension in thickness.
- Roundwood
All roundwood (see clause 2.10) shall be branded as detailed in clauses 2.1 (brand) 2.2 (burn brand), 2.3 (end brand), 2.7 (disc brand), or 2.8 (steam brand).
4.1 Produce steamed as part of the treatment process shall be identified with a 20 mm horizontal straight line under the hazard rating when round produce is 5 m or longer.
4.2 House piles may, as an alternative to an end brand, be branded at or near the mid point with a brand as described in clause 2.4.
4.3 Round fence posts of the Podocarp species must be branded with a plant number but not the symbol “H4”.
- Veneer, Plywood
5.1 Plywood made from treated veneers or pressure treated in made up form shall be branded on the back or edge of each sheet with the plywood manufacturers’ name, mark or registered number plus the appropriate Hazard class identification.
5.1.5 Plywood made up from untreated veneers and with an insecticide added to the glue shall be branded on the back or edge with a minimum, the plywood manufacturers’ name or trade mark and such brand shall include the words “TREATED TGL H1”.
5.2 Plywood, in made up form, destined for treatment at a plant remote from the manufacturers premises, may be branded at the time of manufacture in accordance with subclause 5.1 above with the following provision:
Each pack or part-pack shall be marked with an approved tag signifying that the material is “untreated”. The tag may only be removed at the treatment plant after successful treatment.
The local TPA officer may approve, on individual application, the breaking open of packs at the treatment plant to facilitate cylinder loading.
- Export Branding
6.1 Timber treated for export to overseas standards shall be branded in accordance with the requirement of the importing country. Where no requirement exists then the brands shall be in accordance with the NZ TPA Specifications.
6.2 Registered numbers issued by the NSW Forestry Commission to New Zealand plants in the series 660 to 759 may be used as an alternative to the NZ TPA registered number, after approval has been obtained from the TPA Secretary.
-
Imported Treated Timber
Must be branded in accordance with the NZ TPA Regulations. -
Time of Branding
Where burn branding (or surface branding in the case of H5 piles) is required, it must be carried out immediately prior to or within 2 working days of treatment.
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VUW Te Waharoa —
NZ Gazette 1986, No 38
NZLII —
NZ Gazette 1986, No 38
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Branding and Identification of Preservative Treated Timber
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🌾 Primary Industries & ResourcesTimber preservation, Branding requirements, Hazard ratings, Sawn timber, Roundwood, Plywood