1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULUNDERWRITERS LABORATORIES INC. CERTIFICATION REQUIREMENT DECISIONThis Certification Requirement Decision is prepared by UL LLC. It is normative for the applicable ULProduct Certification Program(
2、s); however, it is currently not part of the UL Standard(s) referencedbelow.Product Category (CCN): IPWZStandard Number: UL 982Standard Title: Standard for Motor-Operated Household Food Preparing MachinesEdition Date: June 10, 2015Edition Number: 7Section / Paragraph Reference: 28.4, 34.3, 69.3.4, 7
3、3.2Subject: Vacuum BlenderDECISION:4.37 Vacuum blender A blender that incorporates, or is provided with, a pump to create a vacuum in theblender container during blending.6.14A Pumps6.14A.1 A pump provided with a vacuum blender shall comply with the construction and performancerequirements of this S
4、tandard, unless it complies with the Standard for Motor-Operated Air Compressors,Vacuum Pumps, and Painting Equipment, UL 1450.19.3 With respect to 19.1(b), a vacuum blender shall be provided with a means to prevent the vacuumpump from picking up liquid in the blender container if it increases the r
5、isk of electric shock or fire. TheIngress Test of 38.2.2 shall be conducted to determine if liquid ingress results in a risk of fire or electricshock. If the backflow prevention means is removable without the use of tools or the user is instructed toremove it for cleaning, the blender shall be subje
6、cted to the Ingress Test of 38.2.2 without the backflowprevention means in place.28.4.3.1 An open-top container of a blender or a blender-type drink mixer shall be provided with a coverhaving one or more openings. Each cover opening shall not have a dimension larger than 2-5/8 in (66.7mm). At least
7、one opening shall be provided with a minimum 1 in (25.4 mm) dimension for addingingredients while blending and to serve as a vent when blending hot liquids.Exception No. 1: For an individual serving size open-top blender container:a) The cover drink opening shall have a minimum dimension of less tha
8、n 1 in (24.5 mm), but nodimension less than 0.5 in (12.7 mm),b) The product shall be subjected to the Overflow Test of 38.1, but the Blender Cover OpeningSplash Test is not applicable,c) With the lid in place, the articulate probe of Figure 7.1, when applied through the drinkopening, shall not be ma
9、de to contact moveable parts capable of causing injury, andd) The blender container shall be marked in accordance with 69.3.4.UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULException No. 2: A vacuum blender shall be provided with a cover for
10、vacuum blending or a means toblock the cover opening when blending with a vacuum in the container. A cover for vacuum blending shallhave means to release the vacuum pressure in the blending container when vacuum blending iscompleted, but is not required to be provided with a cover opening if the cov
11、er is marked in accordancewith 69.3.4 and:a) The blender is provided with a separate cover with a suitable cover opening(s),b) The cover is interlocked to prevent operation without the cover in place, orc) The top of the blender container is guarded by the vacuum pump assembly external to theblender
12、 container such that the maximum distance between the vacuum pump assembly andinside edge of the blender container, with the cover removed, is less than 1 inch (24.5 mm), soingredients cannot readily be added during operation.28.4.4.7 To determine if a closed top thermoplastic blender container or a
13、 vacuum blender containerwithout an opening in the cover complies with 28.4.4.1, the blender is to be tested as mentioned in28.4.4.4 - 28.4.4.6 except that the test fixture shown in Figure 28.2 is not to be used. Instead, the icecubes are to be placed in the container prior to the blender being ener
14、gized.34.3.4 For the Input Test, the blender is also to be operated while blending with a vacuum in the blendingcontainer. If possible under normal use, the vacuum pump and blender are to be operated simultaneously.Otherwise, the vacuum pump input and blending input are to be measured separately wit
15、h the blenderoperated as specified in 34.3.1 after 30 seconds of the blending function. The carrot/water specified in34.3.2 is to be used, but the capacity shall not exceed the rated capacity for blending under a vacuum.34.3.5 For the Normal Temperature Test, a vacuum blender is also to be operated
16、as intended for vacuumand blending functions with a vacuum in the blender container as specified in 34.3.1 and 34.3.4. Thevacuum pump is to be operated at the beginning of each cycle. The vacuum pump is to be operated forthe maximum time allowed when the pump operation is terminated automatically af
17、ter a set time orpressure is achieved. If the pump operation is not automatically terminated, the vacuum pump is to beoperated for 30 seconds or the time specified in the manufacturers instructions, whichever is greater.38.2.2 To determine if a vacuum blender complies with 19.3, the blender containe
18、r is to be filled tomaximum capacity with the salt water solution of 38.2.1. The blender cover is to be secured in place, theblender connected to a supply circuit as specified in 29.3 and the vacuum pump operated for one cycleor until water is no longer picked up. If the vacuum pump can operate at t
19、he same time as the blender,the test is to be repeated with the blender and the pump operating simultaneously. During the test, theappliance shall comply with the Leakage Current Test, Section 30. Following the test, the appliance shallcomply with the Dielectric Voltage-Withstand Test, Section 35.69
20、.3.4 For a closed top blender; an individual serving size open-top blender container, in accordance withthe Exception to 28.4.3.1; and a blender with pour openings on the cover, in accordance with theException No. 2 to 28.4.3.2; the container or cover shall be marked Do Not Blend Hot Liquids. For av
21、acuum blender, the container or cover shall be marked “Do Not Blend Hot Liquids” or, if provided with aseparate cover with an opening in accordance with 28.4.3.1, the cover intended for vacuum blending shallbe marked “Do Not Use This Cover When Blending Hot Liquids.”73.2.1 The following shall be inc
22、luded in the Instruction Manual for blending mixers in addition to any othersafety instructions required by the standard:STANDARD NUMBER: UL 982 -2-UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULa) Keep hands and utensils out of container whi
23、le blending to reduce the risk of severe injuryto persons or damage to the blender (another trade name may be used). A scraper may beused but must be used only when the blender is not running (does not apply to an acceptablescraper integral with the appliance).b) Blades are sharp. Handle carefully.c
24、) Blenders that have a removable cutting assembly that can be driven with the jar removedshall include the following additional safeguard instruction:To reduce the risk of injury, never place cutter-assembly blades on base without jar properlyattached.d) Always operate blender with cover in place.e)
25、 Replace 72.1(g) with the following:The use of attachments, including canning jars, not recommended by the manufacturer maycause a risk of injury to persons.f) When blending hot liquids, remove center piece of two-piece cover. (If a two-piece cover isprovided.)g) For closed-top containers and vacuum
26、 blenders, except as noted in item (l) replace (f) with:Do not blend hot liquids.h) For a cover with an opening near the edge of the cover for pouring and an additional ventopening per the Exception No. 1 to 28.4.3.2, replace (f) with: When blending hot liquids, openor remove each non-pouring lid or
27、 cap, and close any edge cover openings intended forpouring.i) For a cover with an opening near the edge of the cover for pouring and without an additionalvent opening per the Exception No. 1 to 28.4.3.2, replace (f) with: “When blending hot liquids,open (remove) cap over pour opening.” (See also 42
28、.1)j) For a blender provided with a tamper, replace (a) with the following: Keep hands andutensils, other than the tamper provided, out of container while blending to reduce the risk ofsevere injury to persons or damage to the blender. The cover must remain in place when usingthe tamper through the
29、cover opening. A scraper may be used but must be used only when theblender is not running.k) For a blender with a trapped blade assembly and a cover actuated interlock as specified in28.4.2.2, replace (b) with the following:1) “Blade assembly is sharp, not locked in place and removable. Handle with
30、care.When handling blade assembly, always hold by the shaft,”2) “To avoid a risk of injury, before pouring with the cover removed, carefully removethe blade assembly,” and3) If pour spout is provided on the cover: “If using the pour spout, hold the cover inplace on the container (or “engage lid lock
31、”) when pouring to avoid risk of injury.”STANDARD NUMBER: UL 982 -3-UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULl) For a vacuum blender with an additional cover for vacuum blending, add the following to (f):“Do not use the vacuum blending
32、cover when blending hot liquids.”Exception No. 1: In accordance with the Exception No. 2 to 28.4.3.2, replace (i) with (g).Exception No. 2: In accordance with 28.4.3.3, the wording in (f), (h) and (i) shall indicate that the ventedlid is to remain in place over the cover opening(s) when blending hot
33、 liquids.RATIONALE FOR DECISION:A vacuum blender incorporates a pump that is used to create a vacuum in the blender container duringblending. In order to obtain and maintain a vacuum in the blender container, the container must besomewhat sealed. Therefore, a vacuum blender cover should not be used
34、when blending hot liquids. Theinput and temperature test must also be conducted with the vacuum pump operating and the vacuumpump needs to incorporate backflow protection if ingress of liquid presents an increased risk of fire orelectric shock.Copyright 2018 UL LLCUL LLC, in performing its functions
35、 in accordance with its objectives, does not guarantee or warrant thecorrectness of Certification Requirement Decisions it may issue or that they will be recognized or adoptedby anyone. Certification Requirement Decisions are the opinion of UL LLC. in practically applying therequirements of the stan
36、dard. They do not represent formal interpretations of the standard underAmerican National Standards Institute (ANSI) processes. UL LLC shall not be responsible to anyone forthe use of or reliance upon Certification Requirement Decisions by anyone. UL LLC shall not incur anyobligation or liability fo
37、r damages, including consequential damages, arising out of or in connection withthe use or reliance upon Certification Requirement Decisions. The electronic version of the CertificationRequirement Decision is the current version and previously printed copies may be outdated.This document is published as a service to ULs certification customersSTANDARD NUMBER: UL 982 -4-
