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The contract timeline is as follows:

The contract comes into effect on the day it is signed by the last contracting party and remains in force until all obligations are fulfilled. The works are scheduled to commence from the day of "introduction to the job," which will occur no later than 15 days from the date the contract is concluded. The deadline for the completion of the contracted works is December 15, 2026. During the contract execution, weekly coordination meetings are mandated. Upon completion of the works, a written notification, an inspection by the Client and Supervising Engineer, and the signing of a handover report (after any rectifications) mark the acceptance of the works.

The core scope of work for this tender is the "Uređenje interijera zgrade Doma zdravlja u Đurđevcu - LABORATORIJ" (Interior renovation of the Health Center building in Đurđevac - LABORATORY).

The high-level summary of the Statement of Work and core deliverables includes:

A) Construction-Artisan Works:

• Preparatory Works, Demolition, and Dismantling: This includes site preparation, organization, securing, setting up temporary installations, ensuring safety, protecting existing installations, and cleaning the site. Specific demolition and dismantling tasks involve existing interior carpentry (doors, frames), sanitary equipment (WC bowls, cisterns, mirrors, washbasins), ceramic floor and wall tiles, partition walls, radiators (with re-assembly), PVC floor coverings, and draining/refilling the heating system.
• Masonry and Drywall Works: Construction and finishing of new 12 cm thick partition walls using foam concrete blocks.
• Ceramic and Floor Laying Works: While removal of old tiles is mentioned, new installation deliverables are not explicitly detailed in the provided snippets for this category.
• Painting Works: This category is listed but no specific deliverables are detailed.
• Carpentry Works: Production, delivery, and installation of internal doors with specific dimensions, materials (tubular chipboard core, HPL finish, acrylic-polyurethane resin protection), hidden hinges, and oak frames. Also includes complex wooden oak doors and partitions with laminated safety glass and stainless steel handles, lacquered in grey.

B) Water Supply and Drainage (Internal Water Supply and Sewerage):

• Construction Works: Marking routes for water and sewage pipes, and sanitary positions. This encompasses the replacement of complete hot and cold water pipe distribution and drainage pipes in three bathrooms, including wall slicing, excavation, sand bedding for foundation drainage, wall penetrations, masonry finishing, masonry for sanitary devices, closing penetrations, and waste removal. Additionally, it involves installing condensate drainage into walls and subsequent wall repair.
• Installation Works - Internal Water Supply: Supply and installation of polypropylene PP-R pipes (SDR 11 series, according to HRN EN ISO 15874-2 or equivalent) for cold drinking water.
• Sanitary Equipment Installation: Supply, delivery, and installation of rimless ceramic wall-hung WC bowls with soft-close seats, including concealed cisterns. Also, supply and installation of stainless steel wall hangers with WC brushes, toilet paper holders, and console sanitary washbasins (ceramic, white, 60x45 cm) complete with drain valves, siphons, and consoles.

C) Electrical Installations:

• Disconnection and dismantling of existing surface-mounted and built-in luminaires, and their removal to a disposal site.
• Disconnection and dismantling of existing surface-mounted switches in sanitary facilities, including bypassing and closing boxes.
• Replacement of existing surface-mounted ordinary, serial, and changeover switches (10A, 250V).
• Replacement of existing surface-mounted Shuko sockets (16A, 250V) with complete flush-mounted boxes.
• Supplementing floor modular distribution boards (RO-11/RO-22) with specified equipment, including 4-row surface-mounted metal plasticized cabinets.
• Cutting cables on site based on actual length, and marking all distribution boards and cables at both ends.