WPC@+ 2 BJ Zzurier#|xQ!x6X@`7X@HP LaserJet 4LHPLAS4L.PRS4x  @\-RX@#|xUSUK 3'3'Standard6&6&StandardrJet 4Lzư 2CEUz#|xЊX01Í ÍX81Í/Í/(#@--@BnnnqyyPq7c1RyyXyycnnnѐ~nyRzczXzcyhCBnndhcnnonvyXzXshn~XyBBnss~|y~~~~~~~~~~~~~~~~~~~XXXXXXXyyyyyyyyyyyyyyyyyyyyBBBBBBBBBBBBnnnnnnnsssssssssssszCCnCourier2ZHXvkCourierCG TimesMx6X@KX@NEC Silentwriter 2 Model 90NS2MO90.PRSix  @hhhhRiX@l?xxx,Q!x6X@`7X@68wC;,WXw PE37XP@--@a8DocumentgDocument Style StyleXX` `  ` 2 p k k Y a4DocumentgDocument Style Style . a6DocumentgDocument Style Style GX  a5DocumentgDocument Style Style }X(# a2DocumentgDocument Style Style<o   ?  A.  2W v0 t   a7DocumentgDocument Style StyleyXX` ` (#` BibliogrphyBibliography:X (# a1Right ParRight-Aligned Paragraph Numbers:`S@ I.  X(# a2Right ParRight-Aligned Paragraph Numbers C @` A. ` ` (#` 2P  0  a3DocumentgDocument Style Style B b  ?  1.  a3Right ParRight-Aligned Paragraph Numbers L! ` ` @P 1. ` `  (# a4Right ParRight-Aligned Paragraph Numbers Uj` `  @ a. ` (# a5Right ParRight-Aligned Paragraph Numbers _o` `  @h(1)  hh#(#h 2Ja6Right ParRight-Aligned Paragraph Numbersh` `  hh#@$(a) hh#((# a7Right ParRight-Aligned Paragraph NumberspfJ` `  hh#(@*i) (h-(# a8Right ParRight-Aligned Paragraph NumbersyW"3!` `  hh#(-@p/a) -pp2(#p a1DocumentgDocument Style StyleXqq   l ^) I. ׃  2*+Doc InitInitialize Document Style  0*0*  I. A. 1. a.(1)(a) i) a) I. 1. A. a.(1)(a) i) a)DocumentgTech InitInitialize Technical Style. k I. A. 1. a.(1)(a) i) a) 1 .1 .1 .1 .1 .1 .1 .1 Technicala5TechnicalTechnical Document Style)WD (1) . a6TechnicalTechnical Document Style)D (a) . 2\ Wa2TechnicalTechnical Document Style<6  ?  A.   a3TechnicalTechnical Document Style9Wg  2  1.   a4TechnicalTechnical Document Style8bv{ 2  a.   a1TechnicalTechnical Document StyleF!<  ?  I.   2ZKWa7TechnicalTechnical Document Style(@D i) . a8TechnicalTechnical Document Style(D a) . PleadingHeader for numbered pleading paperP@n   $] X X` hp x (#%'0*,.8135@8:+ 3'3'Standard6&6&StandardrJet 4Lzư 0 ST/SG.AC.10/R.468 Page  0 aa` `  hh#(-pp27ST/SG/AC.10/R.468 ` `  hh#(-pp27Page   b  + #Xw PE37WXP# 3 3 $;;).3CC8RESTRICTED  +8 ` `  hh#(-pp27ST/SG/AC.10/R.468  8  ` `  hh#(-pp2721 September 1994 ` `  hh#(-pp27Original: ENGLISH COMMITTEE OF EXPERTS ON THE TRANSPORT OF DANGEROUS GOODS (Eighteenth session, Geneva, 28 November 7 December 1994, agenda item 3(h)) a SALVAGE PACKAGINGS Ra Transmitted by the Hazardous Materials Advisory Council (HMAC)ă 1.At its ninth session, the SubCommittee adopted new provisions for salvage packagings that were based on the proposals submitted by HMAC in document ST/SG/AC.10/C.3/R.489. The text adopted by the SubCommittee in this regard is presented in Annex 1 to its report (ST/SG/AC.10/C.3/18). HMAC welcomes that action as a positive step in promoting uniformity in the testing, marking and use of salvage packagings. However, after careful review of the text adopted by the SubCommittee, HMAC believes several provisions in the text merit further consideration. The purpose of this document is to offer several comments on, and to propose certain modifications to, that text. 2.In its original document, HMAC had proposed that all salvage packagings be tested using a fine, powdery solid as the test substance. In light of the exceptional circumstances under which salvage packagings are used, HMAC had considered this test medium adequate to evaluate the performance capabilities of salvage packagings employed in the transport of damaged or leaking packagings containing liquids as well as solids. However, the SubCommittee did not accept the use of a fine, powdery solid as the test substance for salvage packagings, and instead decided that water should be used. 3.As a consequence of this decision, a salvage packaging used to transport damaged packages containing Packing GroupI substances must pass the drop test from a height of 1.8 meters when filled with water, and at the maximum gross mass permitted in service (i.e., the mass to be indicated in the markings applied to the salvage packaging). In the case of packagings with openings large enough to permit insertion of damaged or leaking packages (e.g., removable head drums), this is a very severe performance standard.  #   bN GE.94 /a:\468E'))%bJ  4.$$HMAC notes that certain salvage packagings used successfully for many years would be unable to satisfy this requirement, and would, therefore, no longer be suitable for use when Packing GroupI substances are involved. Furthermore, in light of the circumstances in which salvage packagings are employed, and of the additional safeguards applicable to the use of these packagings when liquids are involved (see 9.3.15), HMAC questions whether such a severe performance standard is necessary in the interests of safety. For these reasons, HMAC believes that an adequate level of safety would be provided if salvage packagings tested with water at the Packing Group II performance level were permitted for use in the transport of damaged packages with substances of any packing group, and is proposing that 9.7.1.11 be amended to provide for this. 5.$$The SubCommittee included a sentence in square brackets in 9.1.9 referring to the use of "bigger size packagings of appropriate type and performance level" as an alternative to salvage packagings conforming to 9.7.1.11. In this connection, HMAC understands the reference to "appropriate type and performance level" to mean that such alternative packagings must be tested to the relevant performance level in accordance with all applicable provisions of Chapter 9 including those of 9.7.2.1 requiring packagings to be tested "prepared as for transport". Since use of appropriately tested and marked packagings in this manner is already clearly permitted under the current provisions of Chapter9, HMAC believes the sentence in square brackets is redundant and, therefore, unnecessary. 6.$$On the other hand, HMAC believes there is a risk that this sentence could be wrongly interpreted to mean that packagings not tested either in the configuration in which they are to be used in transport as required by 9.7.2.1 (e.g., in a "drumindrum" configuration) or, alternatively, as specifically provided in 9.7.1.11 for salvage packagings (which are identified by the distinctive marking referred to in 9.4.4), may be used as salvage packagings in accordance with the provisions of 9.1.9. HMAC believes this practice would be fundamentally inconsistent with the philosophy underlying Chapter 9. Accordingly, HMAC believes that the sentence currently appearing in square brackets in 9.1.9 should be deleted. Proposals 7. $$For the foregoing reasons, the following amendments are proposed to the text concerning salvage packagings adopted by the SubCommittee as presented in Annex 1 to ST/SG/AC.10/C.3/18: X$$a.X| | In 9.7.1.11, amend the first sentence by adding the words "Packing Group II" following the words "the provisions applicable to"; andƟ#| X$$b.X| | In 9.1.9, delete the sentence in square brackets.Ɵ#| @+'' 8.$$As a consequence of the first amendment proposed above, and by analogy to the manner in which the example of marking for a "4HW" packaging is presented in the existing 9.5.6, the text associated with the UN symbol in the example of a marking for a salvage packaging should be as follows: $$1A2T/Y300/S/94,,#as in 9.5.1 (a), (b), (c), (d) and (e) $$USA/abc ,,#as in 9.5.1 (f) and (g) 5& ă