Article 1 — Description
Pressure- treat piles, posts, timbers, and lumber with preservative.
Article 2 — Materials
Treating plants furnishing treated timber products must meet the requirements of AWPA Standard M3. All treaters except those of structural glued laminated timber must be Department -approved. The Department’s MPL has a list of approved treating plants. Treaters and suppliers of metal beam guard fence posts and blocks must enter into a stocking agreement with the Department. AWPA standards govern materials and methods of treatments including seasoning, preservatives, and inspection for treatment. Provide the level of preservative shown in Table 1. Table 1 AWPA Commodity Specification and Use Category by Product Product AWPA Commodity Specification1 AWPA Use Category2 Round timber piling for land or freshwater use, including foundation piles E UC4C Round timber piling for brackish or saltwater use —marine piles G UC5C Round guard fence posts B UC4B Rectangular guard fence posts A UC4B Guard fence blocks A UC4A Wire fence posts (round) B UC4A Timber and lumber for land or freshwater use A UC4C Timber and lumber for use in brackish or salt water G UC5C 1. For minimum preservative retention requirements, refer to this designated commodity specification for each product within Use Category System Standard U1 of AWPA for the preservative and wood species combination provided. For preservative penetration and assay zone requirements, refer to this designated commodity specification for each product within Use Category System Standard T1 of AWPA. 2. Refer to this designated use category for each product when locating the minimum preservative retention requirement in the pertinent commodity specification within Use Category System Standard U1 of AWP A.
2.1 Inspection . Provide access for the I nspector to all parts of facilities used in the conditioning and treating of
timber products in accordance with Article 6.5., “Plant Inspection and Testing.” The supplier must provide necessary assistance for the proper inspection of the materials being furnished.
2.2 Identification . Each piece or bundle of treated timber products must have a legible brand mark or tag
indicating the name of the treater, date of treatment or lot number, and AWPA treatment specification symbol. Furnish a completed Department Form 2148 , “Certification of Compliance, ” with every shipment of treated timber products.
2.3 Field Treatment . When it is necessary to bore holes or to cut pressure-treated materials after treatment or
when any treated surface is badly scarred, treat the hole, cut, or scarred surface in accordance with AWPA Standard M4. 761 3. MEASUREMENT AND PAYMENT The work performed, materials furnished, equipment, labor, tools, and incidentals will not be measured or paid for directly , but will be subsidiary to pertinent Items.