ASME B30 9 INTERPRETATIONS-2009 Interpretations to B30 9-1996 Slings (Includes Interpretations Through 2009)《B30 9-1996解释文件 吊具》.pdf

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1、ASME B30.9 INTERPRETATIONSASME B30.9 INTERPRETATIONSReplies to Technical InquiriesJanuary 2008 Through October 2009FOREWORDThis publication includes all of the written replies issued between the indicated dates by theSecretary, speaking for the ASME B30 Standards Committee, Safety Standards for Cabl

2、eways,Cranes, Derricks, Hoists, Hooks, Jacks, and Slings, to inquiries concerning interpretations oftechnical aspects of ASME B30.9, Slings.These replies are taken verbatim from the original letters except for a few typographicalcorrections and some minor editorial corrections made for the purpose o

3、f improved clarity. Insome few instances, a review of the interpretation revealed a need for corrections of a technicalnature; in these cases, a corrected interpretation follows immediately after the original reply.These interpretations were prepared in accordance with the accredited ASME procedures

4、.ASME procedures provide for reconsideration of these interpretations when or if additionalinformation is available that the inquirer believes might affect the interpretation. Further, personsaggrieved by this interpretation may appeal to the cognizant ASME Committee or Subcommittee.ASME does not “a

5、pprove,” “certify,” “rate,” or “endorse” any item, construction, proprietarydevice, or activity.I-1ASME B30.9 INTERPRETATIONSInterpretation: 9-27Subject: ASME B30.9-1996, Para. 9-5.3(a)Date Issued: January 30, 2008Question: ASME B30.9-1996, para. 9-5.3(a) states, “A sling shall not be used at a load

6、 greaterthan that shown in the appropriate table or on its tag.” Is the appropriate table meant to befollowed as stated and the term “or on its tag” meant for multi-ply slings for which no table isavailable?Reply: In the 1996 and all subsequent revisions, the rated load on the tag (or identification

7、)takes precedence over the rated loads shown in the tables.Interpretation: 9-28Subject: ASME B30.9-2006, Para. 9-6.2.3Date Issued: January 30, 2008Background: Para. 9-6.2.3 states, “Finishes and coatings shall be compatible with the othercomponents and not impair the other performance of the sling.”

8、 End users have commented thatroundsling manufacturers commonly stencil or screen markings or names on the outer sleeves(covers) of the roundsling.Question (1): As these markings are on the cover and not directly on the load-bearing fibers,are users to assume that this is an accepted and allowable p

9、ractice?Reply (1): The practice would be allowable as long as it does not impair the performance ofthe sling. The Subcommittee cannot answer this question for every manufacturer and stencilingpractice, so the specific sling manufacturer would need to be consulted to answer this question.Question (2)

10、: Has there been an indication of the ink transferring through to the yarns andpossibly causing an issue?Reply (2): The Subcommittee is not aware of instances of ink transferring through to the yarnand causing any impairment issue.Interpretation: 9-29Subject: ASME B30.9-2006, Para. 9-2.6.1(a)Date Is

11、sued: February 21, 2008Question: Para. 9-2.6.1(a) states, “Prior to initial use, all new swaged sockets, poured sockets,turnback eyes, mechanical joint grommets, and endless slings shall be proof tested by the slingmanufacturer or a qualified person.” May sample proof testing of lots be performed to

12、 meet thisprovision?Reply: No. Each sling of the types specified requires a proof test prior to initial use. Samplingor batch testing does not satisfy this requirement.Interpretation: 9-30Subject: ASME B30.9-2006, Para. 9-6.9.5Date Issued: September 29, 2008Question: For sling repairs, does the “qua

13、lified person” have to be authorized by the originalmanufacturer?Reply: No.I-2ASME B30.9 INTERPRETATIONSInterpretation: 9-31Subject: ASME B30.9-2006, Slings, Para. 9-6.7.1(e)Date Issued: September 29, 2008Question: If you use a high performance core strand and a nylon cover, does the cover materialn

14、eed to be identified as nylon on the sling identification or can you use a tradename?Reply: The cover material needs to be identified.Interpretation: 9-32Subject: ASME B30.9-2006, Para. 9-5.5.4Date Issued: October 22, 2009Question: Is it an acceptable practice to accept a higher load rating from a m

15、anufacturer versusthe published ratings in ASME B30.9-2006?Reply: ASME B30 is not capable of answering a general question regarding what is, or is not,an “acceptable practice.” However, the rated load described in the Volume is based on specificmaterial requirements addressed in Section 9-5.2: Mater

16、ials and Components. Additionally,para. 9-5.2.5 states, “Synthetic webbings other than those listed in paras. 9-5.2.1 and 9-5.2.4 maybe employed. When such materials are employed, the sling manufacturer or a qualified personshall provide specific data. These slings shall comply with all other requir

17、ements of the Chapter.”Interpretation: 9-33Subject: ASME B30.9-2006, Para. 9-6.5.4Date Issued: October 22, 2009Question: In Section VI of the Standard Introduction of the Standard, the verbiage is exact onthe actions of the words “shall” and “should.” With this being acknowledged, is it an acceptabl

18、epractice to exceed the values shown in Table 9-6.5.2-1, provided that the angle of choke is 120 degor greater?Reply: Yes. However, ASME B30 is not capable of answering a general question regarding whatis, or is not, an “acceptable practice.”I-3ASME B30.9 INTERPRETATIONSInterpretation: 9-34Subject:

19、ASME B30.9-2006, Section 9-5.2Date Issued: October 28, 2009Question: Are webbing slings that incorporate a design factor of 5, but are stated to havecapacity values different (either more or less) than the published capacity values as prescribedin ASME B30.9, Chapter 9-5, in conformance with the ASM

20、E B30.9 Standard?Reply: Yes. The rated load described in the Volume is based on specific material requirementsaddressed in Section 9-5.2: Materials and Components. Additionally, para. 9-5.2.5 states, “Syntheticwebbings other than those listed in paras. 9-5.2.1 and 9-5.2.4 may be employed. When suchm

21、aterials are employed, the sling manufacturer or a qualified person shall provide specific data.These slings shall comply with all other requirements of the Chapter.”Interpretation: 9-35Subject: ASME B30.9-2006, Para. 9-1.6.1Date Issued: October 28, 2009Question: If one component of a used mechanica

22、l chain sling is replaced due to damage orwear, does the entire chain sling have to be proof tested before being put back into service?Reply: No. Either the component being replaced would have to be proof tested or the finishedassembly (sling) would require proof testing by the sling manufacturer or

23、 a qualified personbefore returning the sling to service.I-4ASME B30.9 INTERPRETATIONS Replies to Technical Inquiries July 1994 - March 1997 FOREWORD This publication includes all of the written replies issued between the indicated dates by the Secretary, speaking for the ASME B30 Committee, Safety

24、Standard for Cableways, Cranes, Demcks, Hoists, Hooks, Jacks, and Slings, to inquiries concerning interpretations of technical aspects of ASME B30.9, Slings. These replies are taken verbatim from the original letters, except for a few typographical corrections and some minor editorial corrections ma

25、de for the purpose of improved clarity. In some few instances, a review of the interpretations revealed a need for corrections of a technical nature: in these cases a corrected interpretation immediately follows the original reply. These interpretations were prepared in accordance with the accredite

26、d ASME procedures. ASME procedures provide for reconsideration of these interpretations when or if additional information is available which the inquirer believes might affect the interpretation. Further, persons aggrieved by this interpretation may appeal to the cognizant ASME Committee or Subcommi

27、ttee. ASME does not “approve,” “certify,” “rate,” or “endorse” any item, construction, proprietary device, or activity. I B30.9 interpretations Interpretation: 9-19 Subject: ASME B30.9-1996, Slings Date Issued: March 7. 1997 Question (1): Please clarify whether chain slings should be removed from se

28、rvice if they are found to contain carbon steel sling hooks. B30.9-1996 defers us to B30.10-1993 in regards to hook issues. Based on this volume, any material, i.e., even plastic, could be used, as long as it conforms to criteria set forth in Section 10-1.1.2. The title, as well as the scope, for Ch

29、apter 9-1 of B30.9-1996 itself, “Alloy Steel Chain Slings,” implies that the volume applies to slings made entirely of alloy steel. Does the alloy adjective pertain only to the chain itself, or does it apply to the sling as a whole? Reply (1): Paragraph 9-1.1.3 states components of alloy chain sling

30、s shall meet the requirements of Section 9-1.7, Attachments. Paragraph 9-1.7.1 states that attachments, hooks included, shall have a rated load at least equal to that of the alloy steel chain with which they are used. It does not require additional material specifications. Therefore, in .this contex

31、t, the alloy adjective applies only to the chain as a mandated requirement. Question (2): Does the answer differ if the sling is a mechanically assembled sling, as compared to a welded type sling? Reply (2): No, there is no distinction, made or intended, between welded or mechanically assembled slin

32、gs. 9-19 9 ASME B30.9 INTERPRETATIONS Replies to Technical Inquiries July 1994 -June 1996 FOREWORD This publication includes all of the written replies issued between the indicated dates by the Secretary, speaking for the ASME B30 Committee, Safety Standard for Cableways, Cranes, Derricks, Hoists, H

33、ooks, Jacks, and Slings, to inquiries concerning interpretations of technical aspects of ASME B30.9, Slings. These replies are taken verbatim from the original letters, except for a few typographical corrections and some minor editorial corrections made for the purpose of improved clarity. In some f

34、ew instances, a review of the interpretations revealed a need for corrections of a technical nature: in these cases a corrected interpretation immediately follows the original reply. These interpretations were prepared in accordance with the accredited ASME procedures. ASME procedures provide for re

35、consideration of these interpretations when or if additional information is available which the inquirer believes might affect the interpretation. Further, persons aggrieved by this interpretation may appeal to the cognizant ASME Committee or Subcommittee. ASME does not “approve,” “certify,” “rate,”

36、 or “endorse” any item, construction, proprietary device, or activity. 1 630.9 Interpretations 9-17, 9-18 Interpretation: 9-17 Subject: ASME B30.9-1990, Slings, including B30.9a-1991, B30.9b-1993, and B30.9-1994 Date Issued: December 12, 1995 Question (I): Does the term “mechanical splice” mean, “a

37、return loop, flernish eye, or farmers splice that is completed by pressing (swaging) one or more metal sleeves over the rope juncture”? Reference: Wire Rope Slings Users Manual (1990), page 1 l. Reply (1): The term is already defined under the entry “splice, mechanical.” Question (4): While slings w

38、ith “swaged sockets” require proof testing, am I correct to understand this Standard leaves proof testing of slings with “swaged sleeves” to the purchasers discretion? Reply (4): Yes. Interpretation: 9-18 Subject: ASME B30.9a-1991, Section 9-2.5 - Sling Identification Date Issued: June 14, 1996 Ques

39、tion (1): Section 9-2.5 states “Wire rope slings should be identified by the rated load and manufacturer. This identification should be maintained for life of the sling.” Does Section 9-2.5 require the sling fabricator to stamp any information on the press steel sleeve of a flemish eye mechanical sp

40、liced sling? Reply (1): ASME B30.9 is a safety standard written in performance language; simply stated, the Standard describes what end result should be achieved. Therefore, the section will not specify any methods for accomplishing the identification process. Question (2): Does Section 9-2.5 requir

41、e the sling fabricator to tag all slings? Reply (2): The word “should” in Section 9-2.5 indicates the provision is of an advisory nature and is a recommendation to be considered. Therefore, any type of tagging is a recommendation and not a requirement. 7 STD-ASME B30.7 INT-ENGL m 0757b70 0578528 830

42、 ASME B30.9 INTERPRETATIONS Replies to Technical Inquiries June 1994 -June 1995 FOREWORD This publication includes all of the written replies issued between the indicated dates by the Secretary, speaking for the ASME B30 committee, Safety Standard for Cableways, Cranes, Derricks, Hoists, Hooks, Jack

43、s, and Slings, to inquiries concerning interpretations of technical aspects of ASME B30.9, Slings. These replies are taken verbatim from the original letters, except for a few typographical corrections and some minor editorial corrections made for the purpose of improved clarity. In some few instanc

44、es, a review of the interpretations revealed a need for corrections of a technical nature: in these cases a corrected interpretation immediately follows the original reply. These interpretations were prepared in accordance with the accredited ASME procedures. ASME procedures provide for reconsiderat

45、ion of these interpretations when or if additional information is available which the inquirer believes might affect the interpretation. Further, persons aggrieved by this interpretation may appeal to the cognizant ASME Committee or Subcommittee. ASME does not “approve,” “certify,” “rate,” or “endor

46、se” any item, construction, proprietary device, or activity. I STD-ASME -B30.9 INT-ENGL m U759b70 0578529 777 830.9 interpretations Interpretation: 9-13 Subject: ASME B30.9-1990, Slings Date Issued: December 20. 1994 Question (I): Are Kevlar slings included in design factors for natural and syntheti

47、c fiber rope slings in Section 9-4.2? Reply (I): Section 9-4.2, Design Factor, states: “The following design factors shall be used for the four basic fiber types detailed in this Standard: Fiber Type Design Factor Natural (Manila and Sisal) Nylon Polyeater Polypropylene Kevlar slings are not address

48、ed. Question (2): Should Kevlar slings be included in Chapters 9-4 or 9-S? Reply (2): The B30 Committee has not addressed the inclusion of Kevlar slings in Chapters 9-4 or 9-S, and therefore, cannot express an opinion to your question. 9-13 3 STD-ASME 830.9 INT-ENGL m 0759b70 0578530 q77 m 9-14 830.

49、9 Interpretations Interpretation: 9-14 Subject: ASME B30.9-1990, Slings Date Issued: December 20, 1994 Question (1): High stranding is taken to be distortion of the wire rope structure, and it may occur, in frequent cases, during the fabrication of an eye splice, where the cause is one of workmanship and not damage. Can some form of high stranding occur within the eye splice that is acceptable as not violating para. 9-2.8.3(b)(3), “.other damage resulting in distortion of the rope structure .,” even if the cause is unknown? Reply (I): Paragraph 9-2.8.3(b) states: “Conditions such as the fo