Specification clauses

Clauses you can paste straight into the spec.

36 product neutral clauses for drinking water, hygiene and emergency equipment. Figures carry their source. Square brackets mark what you fill in for the project.

GEN

General requirements

Applies to every item in the sections below.

  1. GEN.1 Scope

    This section covers the supply, installation, testing, commissioning and handover of the [drinking fountains, bottle filling stations, hand wash stations, emergency showers and eyewash units] shown on the drawings and in the schedule.

  2. GEN.2 Authority requirements

    The works shall comply with the requirements of [name the Authority Having Jurisdiction]. Where this section and the Authority differ, the Contractor shall notify the Engineer before ordering, and the more onerous requirement shall apply unless the Engineer instructs otherwise.

  3. GEN.3 Equal products

    Products of equal or better performance may be proposed. Each proposal shall include a clause by clause compliance statement against this section, listing every deviation, and shall be submitted for the Engineer's approval before order.

  4. GEN.4 Submittals

    For each model the Contractor shall submit: the product datasheet with dimensions, flow rates, materials and connections; the CE declaration of conformity where applicable; the manufacturer's quality management certificate; certificates or test reports for every standard claimed; the installation guide with fixing and plumbing details; warranty terms; the local service arrangement; and the lead time to site.

  5. GEN.5 Materials in contact with drinking water

    Materials in contact with drinking water shall hold a drinking water or hygiene approval from [name the scheme or body accepted by the Authority]. The approval document shall be included in the submittal.

  6. GEN.6 Corrosion resistance near the coast

    Exposed stainless steel at sites within [distance] of the coast shall be AISI 316 or a higher grade. A powder coated or other finish may be proposed if the manufacturer confirms in writing the exposure for which the finish is warranted.

    AISI 316 has better corrosion resistance than 304, particularly to pitting in chloride environments. The same source notes that in hot chloride environments 316 is subject to pitting and crevice corrosion, and to stress corrosion cracking under tensile stress beyond about 50°C, so review surfaces exposed to sustained high temperatures. Source: ASSDA

  7. GEN.7 Site conditions

    Equipment installed outdoors shall be suitable for a maximum ambient temperature of [ ]°C and for direct solar exposure unless shaded. The manufacturer's stated ambient limits shall be included in the submittal.

  8. GEN.8 Handover

    At handover the Contractor shall provide operation and maintenance manuals, spare parts lists, commissioning records for each unit and the maintenance schedule, with the responsible party named for each maintenance task.

HYD

Drinking fountains and bottle filling stations

For schools, public realm, transport, healthcare and workplaces.

  1. HYD.1 Number of outlets

    Drinking water outlets shall be provided in the number required by the Authority. Where the Authority does not set a number, the minimum shall be [insert the ratio for the occupancy], and outlets shall be located as shown on the drawings.

    International Plumbing Code 2021, Table 403.1, drinking fountain column: educational 1 per 100; business 1 per 100; hospital employees 1 per 100; hospital visitors 1 per 500; passenger terminals 1 per 1,000; outdoor stadiums 1 per 1,000; retail 1 per 1,000. Check what your Authority adopts: it varies by emirate and by country. Source: International Code Council

  2. HYD.2 Accessible outlets

    On each floor, exterior site or secured area where drinking fountains are provided, there shall be [one unit for wheelchair users and one unit for standing persons, or a single unit meeting both]. Where more than two are provided, half shall be of each type. Units for wheelchair users shall have a clear floor space for a forward approach with knee and toe clearance, spout outlets no higher than 915 mm above the finished floor or ground, the spout at least 380 mm from the vertical support and no more than 125 mm from the front edge including bumpers, and a water flow at least 100 mm high at the stream angle set by ADA section 602.6. Operable parts shall comply with ADA section 309. Spout outlets for standing persons shall be between 965 mm and 1090 mm above the finished floor or ground. Clearances and reach ranges shall be shown on the datasheet.

    ADA Standards sections 211.2, 211.3 and 602.1 to 602.7. Use your Authority's accessibility code where it sets different dimensions. Source: US Access Board

  3. HYD.3 Children's outlets

    Where units are provided for children's use, the lower spout height shall be [ ] mm above the finished floor, selected for the youngest age group served and confirmed on the datasheet.

    ADA section 602.2 allows a parallel approach at units for children's use where the spout is no higher than 760 mm and no more than 90 mm from the front edge of the unit, including bumpers. Source: US Access Board

  4. HYD.4 Bubblers

    Bubblers shall be vandal resistant, with a protective guard so that the mouth does not touch the outlet. Operation shall be by [mechanical self closing push button] [sensor]. Twist taps are not acceptable.

  5. HYD.5 Bottle filling stations

    Bottle filling stations shall be [sensor] [push button] operated, shall be designed to fill a bottle without contact between the bottle and the outlet, and shall [include] [not include] a bottle counter display.

  6. HYD.6 Chilled water

    Where chilled water is scheduled, the unit shall deliver water at [ ]°C at the site's maximum ambient temperature of [ ]°C. The submittal shall state the manufacturer's ambient operating limits and installation conditions. Shade and the electrical supply shall be confirmed in coordination before the unit is approved.

  7. HYD.7 Filtration

    Each outlet shall be fitted with an inline filter sized for the expected flow. Filter type, change interval and the party responsible for changing filters shall be stated in the maintenance schedule.

  8. HYD.8 Construction and fixing

    Units shall be fixed to a proper base or wall using fixings that cannot be removed without a specialist tool. Access panels shall allow maintenance of valves, filters and any chiller without removing the unit.

  9. HYD.9 Finish

    Powder coated units shall be finished to RAL [ ]. A physical colour sample shall be submitted for approval before manufacture.

  10. HYD.10 Connections and drainage

    Each unit shall have an accessible isolation valve on the supply. The supply pressure at each unit shall be confirmed against the manufacturer's stated range, and waste connections shall be coordinated with the drainage drawings.

HYG

Hand wash stations

For healthcare, food production, hospitality and public facilities.

See the Hygiene range
  1. HYG.1 Operation

    Hand wash stations shall be hands free, operated by [sensor] [foot control] [knee control].

  2. HYG.2 Materials and cleaning

    Basins and exposed surfaces shall be [AISI 304] [AISI 316] stainless steel, or as scheduled, with smooth surfaces and no features that prevent cleaning. The manufacturer's cleaning instructions shall be included in the operation and maintenance manuals.

  3. HYG.3 Water and accessories

    Delivered water temperature shall be [ ]°C. Each station shall include [soap dispenser] [hand drying provision] as scheduled, positioned so that users do not need to touch the basin.

  4. HYG.4 Location

    Stations shall be located at [entrances to food handling areas] [clinical areas] as shown on the drawings, with space for users to wash without obstructing circulation routes.

EME

Emergency showers and eyewash units

Figures are for ANSI/ISEA Z358.1-2014, from published guides to it. The standard itself is a paid document: check these against your copy. If you name EN 15154, replace the figures with those in the named part.

  1. EME.1 Standard

    Emergency equipment shall comply with [ANSI/ISEA Z358.1-2014 (R2020)] [the relevant part of the EN 15154 series, stating the part number]. The Engineer shall name one standard for the project. Figures and inspection frequencies in clauses EME.3 to EME.8 and EME.14 are to ANSI/ISEA Z358.1: if EN 15154 is named, the Engineer shall replace them with the requirements of the named part.

    EN 15154 is published in separate parts, including part 1 for plumbed-in body showers for laboratories and part 2 for plumbed-in eyewash units. Name one standard rather than treating the two as interchangeable. Source: ISEA, EN 15154 part 1, EN 15154 part 2

  2. EME.2 Third party evaluation

    Each unit shall be independently evaluated by a third party testing organisation against the standard named in EME.1. The evaluation certificate shall be included in the submittal.

    The compliance guide advises looking for third party certification when selecting a fixture. Source: Bradley quick compliance guide

  3. EME.3 Location and access

    Each unit shall be located within 10 seconds' travel of the hazard, on the same level as the hazard, with a route free of obstructions. The hazard assessment shall be used to confirm positions, and the route shall be walked and timed at commissioning. These figures are to ANSI/ISEA Z358.1.

    55 feet (16.8 metres) is given as a guideline for the area covered in 10 seconds. A door is treated as an obstruction, with a limited exception for a single unlocked door opening in the direction of travel where the contaminant is not hazardous or corrosive. Source: Bradley quick compliance guide, Bradley guide to the standard

  4. EME.4 Flushing fluid temperature

    Delivered flushing fluid shall be tepid, between 16°C and 38°C, for the full 15 minute flush across the full range of supply temperatures, including the peak summer supply temperature of [ ]°C. The Contractor shall provide a tempered water system, by [chiller] [cooled tank] or other approved means, with calculations showing compliance, and the system shall not cool the fluid below 16°C. The temperature within this range shall be confirmed for the hazards on site with a safety or health advisor. These figures are to ANSI/ISEA Z358.1.

    Tepid is defined as 16 to 38°C. The guide to the standard notes that temperatures above 100°F may cause chemical interactions with the skin, that hypothermia becomes a concern at 60°F and below, and that a safety or health advisor helps set the temperature for the hazard. Source: ANSI summary, Bradley guide to the standard

  5. EME.5 Water supply

    The supply shall deliver the required flow for an uninterrupted 15 minutes to every fixture that may operate at the same time. Supply pressure at each fixture, while delivering the required flow, shall be at least 207 kPa (30 psi) or the manufacturer's stated minimum, whichever is greater. Pressures above 552 kPa (80 psi) shall be reviewed with the manufacturer. Calculations shall be submitted, including at the lowest pressure condition on the system. These figures are to ANSI/ISEA Z358.1.

    Compliant fixtures are supplied at a minimum of 30 psi (207 kPa), extra care is advised above 80 psi (552 kPa), and all drenching systems in a combination unit must be assumed to activate simultaneously. Source: Bradley quick compliance guide, Bradley guide to the standard

  6. EME.6 Safety showers

    Showers shall deliver at least 76 litres per minute (20 US gallons per minute) for at least 15 minutes. The shower head shall be between 2083 mm and 2438 mm above the standing surface. The spray pattern shall be at least 508 mm in diameter at 1524 mm above the standing surface, with a 406 mm radius from the centre of the pattern clear of obstructions. The valve shall open in one second or less, stay open until closed by hand, and be no higher than 1752 mm above the standing surface. These figures are to ANSI/ISEA Z358.1.

    Source: Bradley quick compliance guide, Bradley guide to the standard

  7. EME.7 Eyewash and eye and face wash units

    Eyewash units shall deliver at least 0.4 US gallons per minute (1.5 litres per minute), and eye and face wash units at least 3.0 US gallons per minute (11.4 litres per minute), for at least 15 minutes. The flushing fluid shall be between 838 mm and 1346 mm above the standing surface, and nozzles shall be at least 152 mm from any wall or obstruction. The valve shall open in one second or less and stay open until closed by hand. Heads shall be protected from airborne contaminants. These figures are to ANSI/ISEA Z358.1.

    Source: Bradley quick compliance guide, Bradley guide to the standard

  8. EME.8 Combination units

    Combination units shall deliver a compliant flush to the shower and to the eyewash or eye and face wash at the same time, without interruption, for 15 minutes.

    Source: Bradley quick compliance guide, Bradley guide to the standard

  9. EME.9 Construction

    Equipment shall be of materials that resist corrosion in the presence of the flushing fluid and, for [outdoor] [process] locations, shall be suitable for the chemicals present on site as stated in the hazard assessment. Where freezing can occur, freeze protection shall be provided. Scald protection shall be provided where the supply can exceed the tepid range.

    Source: Bradley quick compliance guide

  10. EME.10 Signs and lighting

    Each unit shall be identified by a highly visible sign in close proximity to the unit, and the surrounding area shall have adequate lighting.

    Source: Bradley guide to the standard

  11. EME.11 Alarms

    [Each unit shall be fitted with a flow switch and a visual and audible alarm, with an auxiliary connection to the [building management system].]

    Optional. Alarms discourage false activations and allow responders to locate the incident. Source: Bradley quick compliance guide, Bradley guide to the standard

  12. EME.12 Waste water

    A plan for the disposal of flushing fluid shall be provided, by floor drain or a dedicated containment system, in accordance with local requirements, so that fluid does not pool around the unit.

    Source: Bradley quick compliance guide

  13. EME.13 Testing at commissioning

    Each unit shall be tested at commissioning and the results recorded per unit. Eyewash and eye and face wash units shall be tested with a flow meter for flow rate and a test gauge for flow pattern. Showers shall be tested with a shower tester and bucket to measure the water released against the minimum flow, and the spray pattern shall be confirmed. The delivered temperature shall be measured at each outlet.

    Source: Bradley quick compliance guide, Bradley guide to the standard

  14. EME.14 Inspection regime at handover

    The Contractor shall hand over an inspection regime with the equipment. Plumbed units shall be activated weekly to confirm flow and clear the line. Self contained units shall be visually inspected weekly to confirm adequate flushing fluid. All units shall be inspected annually for compliance with the standard. Results shall be recorded for each unit. Users shall be trained on the location and operation of the equipment.

    Source: Bradley quick compliance guide, Bradley guide to the standard

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