1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULMay 7, 20081SUBJECT 212OUTLINE OF INVESTIGATIONFORHAND-OPERATED CHEMICAL PUMPSIssue Number: 1MAY 7, 2008Summary of TopicsThis first issue of Outline of Investigation for Hand-Operated ChemicalPum
2、ps covers hand-operated pumps intended to handle chemicals andsimilar liquids.The UL Foreword is no longer located within the UL Standard. For informationconcerning the use and application of the requirements contained in thisStandard, the current version of the UL Foreword is located onULStandardsI
3、nfoNet at: http:/ 2008 UNDERWRITERS LABORATORIES INC.UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULMAY 7, 2008SUBJECT 2122No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION F
4、ROM ULCONTENTSINTRODUCTION1 Scope .42 General 42.1 Components 42.2 Units of measurement .52.3 Undated references .53 Glossary .5CONSTRUCTION4 Assembly 55 Materials .66 Bodies, Covers, and Heads 67 Diaphragms 68 Springs 79 Outlet Connections 710 Hoses 7PROTECTION AGAINST INJURY TO PERSONS11 General .
5、712 Sharp Edges 8PERFORMANCE13 General .814 Deformation Test 815 Blocked Outlet Pressure Test .816 External Leakage Test 917 Hose Securement Conditioning Test .918 Endurance Test 919 Liquid Immersion Test .1020 Long Term Exposure Test .10MANUFACTURING AND PRODUCTION LINE TESTS21 General 11MARKING22
6、General 1123 Cautionary Markings 1124 Permanency of Marking .12INSTRUCTION MANUALS25 General 12MAY 7, 2008 SUBJECT 212 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULINTRODUCTION1 Scope1.1 These requirements cover hand-operated pumps intende
7、d to handle chemicals and similar liquids.1.2 These pumps are intended to be attached to a barrel, a drum, a carboy, or a similar container, usingconnection means provided with the pump.1.3 Hand-operated pumps investigated to the requirements of this Outline shall be evaluated using theapplicable fl
8、uids the pump is intended to be used with as specified by the manufacturer.1.4 This Outline does not cover hand-operated pumps for use with:a) Flammable and combustible liquids orb) Water.2 General2.1 Components2.1.1 Except as indicated in 2.1.2, a component of a product covered by this Outline shal
9、l comply withthe requirements for that component.2.1.2 A component is not required to comply with a specific requirement that:a) Involves a feature or characteristic not required in the application of the component in theproduct covered by this standard, orb) Is superseded by a requirement in this s
10、tandard.2.1.3 A component shall be used in accordance with its rating established for the intended conditions ofuse.2.1.4 Specific components are incomplete in construction features or restricted in performancecapabilities. Such components are intended for use only under limited conditions, such as
11、certaintemperatures not exceeding specified limits, and shall be used only under those specific conditions.MAY 7, 2008SUBJECT 2124UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL2.2 Units of measurement2.2.1 Values stated without parentheses a
12、re the requirement. Values in parentheses are explanatory orapproximate information.2.3 Undated references2.3.1 Any undated reference to a code or standard appearing in the requirements of this standard shallbe interpreted as referring to the latest edition of that code or standard.3 Glossary3.1 For
13、 the purposes of this Outline, the following definitions apply.3.2 DIAPHRAGM A dividing membrane or thin partition that is used to provide the pumping action.3.3 DISCHARGE OUTLET An outlet through which the fuel can be dispensed into a secondarycontainer.3.4 MANUAL PUMP A non-powered device used to
14、transfer liquids from a primary container to asecondary container.CONSTRUCTION4 Assembly4.1 The construction of a pump shall be such that parts can be assembled in the intended manner afterbeing dismantled to the extent needed for replacement of parts or for other maintenance or servicing.4.2 When a
15、 pump requires the use of special flanges, gaskets, bolts, or other special fittings or parts formaking connections, such parts shall be furnished as part of the pump assembly.4.3 A product shall be formed and assembled so that it will have the strength and rigidity necessary toresist the abuses to
16、which it is likely to be subjected, without resulting in a risk of injury to persons due tototal or partial collapse, loosening or displacement of parts, or other serious defects.MAY 7, 2008 SUBJECT 212 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSIO
17、N FROM UL5 Materials5.1 Fluid confining parts of the pump shall be constructed of nonmetallic materials.5.2 A part to be used for fluid confining parts shall be of a material inherently resistant to the action ofthe liquid to be handled. Other parts in contact with the fluid to be handled shall be r
18、esistant to the actionof the fluid when malfunction of the part results in:a) Leakage;b) Malfunction of equipment; orc) A risk of injury to persons.5.3 An elastomeric part used in contact with the fluid to be handled shall be tested in accordance withthe Liquid Immersion Test, Section 19. A seal sub
19、jected to additional forces, such as pull forces duringuse, shall comply with the requirements in the Endurance Test, Section 18.6 Bodies, Covers, and Heads6.1 Nonmetallic threaded connections shall not crack or leak when tested in accordance with thedeformation test requirements in Section 14.6.2 A
20、 bolt or a screw hole shall not extend through the outer walls of a pump body into a liquid handlingsection.7 Diaphragms7.1 A metal or nonmetal part coming into contact with a diaphragm shall have no sharp edges, burrs,projections, or surfaces that are capable of chafing or abrading the diaphragm.7.
21、2 A pump, in which a diaphragm constitutes the only fluid seal, shall be constructed such that theatmospheric side of the diaphragm is enclosed in a casing construction to reduce external leakage in theevent of diaphragm rupture, or shall have provisions for the connection of pipe or tube that will
22、vent to theoutdoors or an equivalent area.MAY 7, 2008SUBJECT 2126UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL8 Springs8.1 A spring shall be guided and arranged to reduce binding, buckling, or other interference with its freemovement. When
23、required, ends of a spring shall be closed and squared.9 Outlet Connections9.1 Threaded connections shall be made with a suitable pipe joint sealant or other suitable means toprevent leaking.9.2 Specialized connection fittings shall be supplied by the manufacturer.10 Hoses10.1 Hoses intended to be u
24、sed with the pump shall be supplied by the manufacturer.10.2 Hoses can be connected to the pump outlet by solvent weld bonding, spring clamp, stainless steelclamp, or other acceptable means. The securement means shall be provided by the manufacturer.10.3 All hoses and all securement means shall be t
25、ested in accordance with the External Leakage Test,Section 16. Hoses that are solvent weld bonded to the pump outlet shall also be subjected to the HoseSecurement Conditioning Test, Section 17.PROTECTION AGAINST INJURY TO PERSONS11 General11.1 If the operation and maintenance of a product by the use
26、r involves a risk of injury to persons, meansshall be provided to reduce the risk.11.2 When judging a product with respect to the requirement in 11.1, consideration shall be given toreasonably foreseeable misuse of the product.11.3 Specific constructions, tests, markings, guards, and the like are de
27、tailed for some commonconstructions. Specific features and products not covered herein are to be examined and tested todetermine whether they are acceptable for the purpose.MAY 7, 2008 SUBJECT 212 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM
28、 UL12 Sharp Edges12.1 An enclosure, frame, guard, handle, or the like shall not be sufficiently sharp to constitute a risk ofinjury to persons in normal maintenance and use.PERFORMANCE13 General13.1 A representative sample of each size and specific design of pump is to be subjected to the testsdescr
29、ibed in these requirements. Additional samples of parts constructed of nonmetallic materials arerequired for physical and exposure testing.13.2 Water is to be used for developing the required pressures in a leakage test of liquid confining partsor hydrostatic pressure test. All hydrostatic pressures
30、 are to be maintained for at least 1 minute unlessotherwise noted.13.3 Endurance tests are to be performed using the chemical that the pump is intended to be used with.14 Deformation Test14.1 Joints in a pump shall not leak, nor shall there be evidence of damage resulting from the turningeffort exer
31、ted on threaded sections that have been tested as described in 14.2 and 14.3.14.2 The material shall not crack when subjected to the turning force equal to 1-1/2 times themanufacturers recommended torque value.14.3 After the torque force has been applied, each sample is subjected to the External Lea
32、kage Test,Section 16.15 Blocked Outlet Pressure Test15.1 A complete sample of the pump is to be installed as intended in a 55-gallon drum containing water.A pressure gauge and a valve are to be installed in the outlet of the hose in order to measure thedischarge pressure under normal operation (valv
33、e open) and under blocked outlet (valve closed). Thedrum shall be connected to a pressure indicating device that can measure pressure increases within thedrum.15.2 The valve is opened and the pump is operated as intended. The maximum discharge pressure ismeasured and recorded. The valve is then clos
34、ed and the pump is operated as intended. The maximumdischarge pressure is measured and recorded.15.3 There shall be no indication of pressure increase in the drum during this test.MAY 7, 2008SUBJECT 2128UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION
35、 FROM UL16 External Leakage Test16.1 A complete as-received sample of the pump, including the hose and hose securement means ifapplicable, are to be subjected to this test. The test shall be as described in 16.2. There shall be noleakage observed during this test.16.2 The sample of the pump was inst
36、alled as described in the Blocked Outlet Pressure Test, Section 15.The pump was operated as intended in both the normal operation and blocked outlet modes. During theoperation, the pump was inspected for signs of leakage.17 Hose Securement Conditioning Test17.1 Two samples, prepared as described in
37、17.2, are to be filled with the rated chemical at the maximumconcentration. The samples are to be tested as described in 17.3.17.2 Representative samples may be used. These samples shall consist of the hose assembly bonded toa discharge outlet, but the entire pump is not necessary. The representativ
38、e samples shall have meansfor blocking all outlets, so that the sample can be filled with the fluid. If the manufacturer requests, thesample can consist of the entire pump.17.3 The samples are filled with the appropriate fluid and then capped off. They are maintained at atemperature of 23 2C (73 4F)
39、 for the entire test duration. The first sample is tested for 30 days, thesecond sample is tested for 60 days. At the end of these durations, each sample is to be emptied andthen visually inspected for signs of deterioration, cracking, other damage. After this inspection, the sampleis to be subjecte
40、d to the External Leakage Test, Section 16. There shall be no indication of cracking,breaking, deterioration, or leakage due to this conditioning.18 Endurance Test18.1 A sample of the complete pump is to be installed in a barrel, a drum, or other appropriate containeras intended. The container is to
41、 be filled with the fluid the pump is rated to be used with at the maximumconcentration.18.2 The pump is to be operated for a total of 12,500 cycles. Each cycle is one complete pumping actionof the pump.18.3 Both during and after the cycling, there shall be no evidence of leakage or siphoning action
42、 of thepump. The pump shall remain operational and shall be subjected to the External Leakage Test, Section16 after the cycling.MAY 7, 2008 SUBJECT 212 9UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL19 Liquid Immersion Test19.1 Four sets of
43、three samples are required for this test. Samples are to consist of actual seals.19.2 The first set of three samples are measured and weighed in the as-received condition. The diameter,width, thickness, and weight of all three samples is determined by suitable means and recorded. Thevalues for the t
44、hree samples are averaged to obtain the average as-received values for diameter, width,thickness, and weight.19.3 The measurements described in 19.2 are to be repeated on the remaining three sets of samplesafter the remaining sets are conditioned as specified in 19.4.19.4 Three sets of three samples
45、 are to be completely immersed in the rated chemical at the maximumrated concentration while maintained at a temperature of 23 2C (73 4F). The first set is conditionedfor 60 days, the second set is conditioned for 180 days, and the last set is conditioned for 240 days.19.5 After all conditioning is
46、complete and all the average values have been obtained, they are to becompared to determine the percentage change in each parameter. The following equation is to be used:% Change=(VcVo)/Vo x 100whereVcis the average value after conditioning andVois the average as-received value.19.6 The parameters s
47、hall comply with the following criteria:a) The percentage change in diameter, width, or thickness shall not exceed 10 percent.b) The percentage change in weight shall not exceed a gain of 50 percent or a loss of 2percent.20 Long Term Exposure Test20.1 Complete samples of the pump were mounted as int
48、ended on drums, barrels, or other appropriatecontainers. The containers were filled 2/3 full with the rated chemical at the maximum rated concentration.The tubular portion of the pump is to be immersed in the liquid during this test.20.2 The pump is subjected to the exposure outlined in 20.1 for 240
49、 days. At the end of the 240 days,the pump is removed and examined. There shall be no evidence of distortion to the tubular portion of thepump.MAY 7, 2008SUBJECT 21210UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULMANUFACTURING AND PRODUCTION LINE TESTS21 General21.1 To assure compliance with these requirements in production, the manufacturer shall provide thenecessary production control, inspection, and tests. The program shall include at least the tests
