Where: S is tank size in gallons; C is makeup system capacity in gallons per hour; T is hours per day system is being used. Testing: The quality of the water shall be tested for compliance with design criteria as part of the installation contract by an approved testing agency. System shall be tested upon start-up, at one month, and four times at three (3) month intervals thereafter. Supply and return piping shall be in piping appropriate for the water quality. Standard piping shall be unpigmented schedule 80 polypropylene with fusion welded joints. Ultra-high purity water piping shall use SYGEF virgin PVDF pipe with socket fusion joints and fittings. Systems requiring the highest purity water shall use bead and crevice free (BCF) joints. Valves: All valves must be pre-cleaned and non-lubricated. The use of Teflon paste, Permatex, Vaseline and other lubricants are expressly forbidden. Shut-off valves: true union ball valves for for sizes ½” thru 2”. Butterfly valve and larger. Material same as piping. 2½” Check valve: stainless steel spring check Back pressure: Jordan stainless steel type MARK-50, 2-20 psig spring range Laboratory waste and vent piping should be schedule 40 polypropylene pipe with schedule 40 DMV fusion weld fittings. Mechanical joints are acceptable for piping above lab floor and for vent lines. Manufacturers: Fuseal, Enfield, Harvel Special applications may require the use of chemical waste drain lines. Glass waste piping may be used for these applications if appropriate. Installation and design should comply with the requirements, joints should be mechanical joints. manufacturer’s Manufacturers: Schott, Kimax, or equal. EXECUTION CLEANING General Cleaning Requirements: All pipe, fittings, valves, and system-related materials shall be cleaned before use.
Where: S is tank size in gallons; C is makeup system capacity in gallons per hour; T is hours per day system is being used. Testing: The quality of the water shall be tested for compliance with design criteria as part of the installation contract by an approved testing agency. System shall be tested upon start-up, at one month, and four times at three (3) month intervals thereafter. Supply and return piping shall be in piping appropriate for the water quality. Standard piping shall be unpigmented schedule 80 polypropylene with fusion welded joints. Ultra-high purity water piping shall use SYGEF virgin PVDF pipe with socket fusion joints and fittings. Systems requiring the highest purity water shall use bead and crevice free (BCF) joints. Valves: All valves must be pre-cleaned and non-lubricated. The use of Teflon paste, Permatex, Vaseline and other lubricants are expressly forbidden. Shut-off valves: true union ball valves for sizes ½” thru 2”. Butterfly valve for 2½” and larger. Material same as piping. Check valve: stainless steel spring check Back pressure: Jordan stainless steel type MARK-50, 2-20 psig spring range Laboratory waste and vent piping should be schedule 40 polypropylene pipe with schedule 40 DMV fusion weld fittings. Mechanical joints are acceptable for piping above lab floor and for vent lines. Manufacturers: Fuseal, Enfield, Harvel Special applications may require the use of chemical waste drain lines. Glass waste piping may be used for these applications if appropriate. Installation and design should comply with the manufacturer’s requirements, joints should be mechanical joints. Manufacturers: Schott, Kimax, or equal. EXECUTION CLEANING General Cleaning Requirements: All pipe, fittings, valves, and system-related materials shall be cleaned before use.
40_20_00_Laboratory_Water_and_Waste_Systems.docx