1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA
2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any
3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ISBN 978-0-626-21157-8 SANS 1860:2008Edition 1.1Any reference to SANS 1860 is deemedto be a reference to this standard(Government Notice No.1373 of 8 Nov
4、ember 2002)SOUTH AFRICAN NATIONAL STANDARD Wool packs for unprocessed wool Published by Standards South Africa 1 dr lategan road groenkloof private bag x191 pretoria 0001 tel: 012 428 7911 fax: 012 344 1568 international code + 27 12 www.stansa.co.za Standards South Africa SANS 1860:2008 Edition 1.1
5、 Table of changes Change No. Date Scope Amdt 1 2008 Amended to change the designation of SABS standards to SANS standards, to change the dimensions in the figure on steel sled with sponge rubber attached, and to update the referenced standards.Acknowledgement Standards South Africa wishes to acknowl
6、edge the valuable assistance derived from the Wool Testing Bureau SA. Foreword This South African standard was approved by National Committee StanSA SC 5110.01H, Textile Bulk bags, in accordance with procedures of Standards South Africa, in compliance with annex 3 of the WTO/TBT agreement. This docu
7、ment was published in June 2008. This document supersedes SABS 1860:2002 (edition 1). Annexes A and B form an integral part of this document. Annex C is for information only. SANS 1860:2008 Edition 1.1 1 Contents Page Acknowledgement Foreword 1 Scope 3 2 Normative references 3 3 Definitions and abbr
8、eviation 4 4 Requirements 4 5 Inspection and methods of test . 7 5.1 Inspection 7 5.2 Sampling levels . 7 5.3 Preparation of test specimens . 7 5.4 Composition 7 5.5 Mass per unit area and total mass 7 5.6 Weave . 7 5.7 Number of threads per 10 cm 7 5.8 Penetration force . 8 5.9 Breaking strength an
9、d extension at break . 12 5.10 Tear strength . 13 5.11 Seam strength . 13 5.12 Single tape or yarn strength and extension . 14 5.13 UV stability 14 5.14 Non-fibrillation rating (HDPE wool packs only) 14 5.15 Surface friction 15 6 Packing and marking 18 Annex A (normative) Notes to purchasers. 19 Ann
10、ex B (normative) Sampling and compliance with this standard. 19 Annex C (informative) Quality verification of wool packs for unprocessed wool . 20 Bibliography 20 SANS 1860:2008 Edition 1.1 2 This page is intentionally left blank SANS 1860:2008 Edition 1.1 3 Wool packs for unprocessed wool 1 Scope T
11、his standard specifies the requirements for two types of wool packs (nylon and high density polyethylene) for unprocessed wool. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this standard. All standards are subject t
12、o revision and, since any reference to a standard is deemed to be a reference to the latest edition of that standard, parties to agreements based on this standard are encouraged to take steps to ensure the use of the most recent editions of the standards indicated below. Information on currently val
13、id national and international standards can be obtained from the Standards South Africa. AATCC test method 20-2007, Fiber analysis: Qualitative. SANS 70, Conditioning of textiles and standard temperate atmosphere for determining their physical and mechanical properties. SANS 77, Breaking strength, e
14、xtension at break and tenacity of textile yarns (other than stretch-type yarns). Amdt 1 SANS 79, Textiles Mass per unit area of conditioned fabrics. SANS 2062/ISO 2062, Textiles Yarns from packages Determination of single-end breaking force and elongation at break. Amdt 1 SANS 5382, Textiles Tearing
15、 strength of fabrics: wing-rip tear test. Amdt 1SANS 6084, Colour fastness of textiles to light: mercury vapour lamp method. SANS 7211-2/ISO 7211-2, Textiles Woven fabrics Construction Methods of analysis Part 2: Determination of number of threads per unit length. SANS 7211-5/ISO 7211-5, Textiles Wo
16、ven fabrics Construction Methods of analysis Part 5: Determination of linear density of yarn removed from fabric. SANS 10004, Terms and definitions for textiles and textile merchandise. SANS 10101 (SABS 0101), Standard nomenclature for stitches, seams and stitchings. SANS 1860:2008 Edition 1.1 4 SAN
17、S 13934-1/ISO 13934-1, Textiles Tensile properties of fabrics Part 1: Determination of maximum force and elongation at maximum force using the strip method. SANS 13937-3/ISO 13937-3, Textiles Tear properties of fabrics Part 3: Determination of tear force of wing-shaped test specimens (single tear me
18、thod). Amdt 13 Definitions and abbreviation For the purposes of this standard, the definitions given in SANS 10004 and the following definitions and abbreviation apply: 3.1 acceptable acceptable to the authority administering this standard or to the parties concluding the purchase contract, as relev
19、ant 3.2 HDPE high density polyethylene 3.3 nominal subject to the normal tolerances acceptable to good manufacturing practice 4 Requirements 4.1 General 4.1.1 Wool packs shall be nylon or HDPE, as required (see annex A). 4.1.2 Nylon wool packs (see 5.4) shall be woven from undyed or white high tenac
20、ity nylon 6 or 6.6 yarn (determined in accordance with AATCC test method 20-2007 or chemical analysis); both the warp and weft yarns shall be of the same type of nylon, and be woven from multifilament yarn that has similar dying characteristics to wool and each individual filament shall have a linea
21、r density not greater than 10 decitex (determined in accordance with SANS 7211-5). 4.1.3 HDPE wool packs (see 5.4) shall be woven from dyed (see 4.3) high density polyethylene tapes (determined in accordance with AATCC test method 20-2007 or chemical analysis). 4.1.4 The wool pack fabric shall have
22、a suitable anti-slip coating applied to the inner or outer surface (or both), and have a firm well-constructed selvedge and have no protruding ends or picks. 4.1.5 The finished pack shall not contain any loose remnants of yarn, tape, pack material, sewing thread or any other foreign material which m
23、ay cause contamination of the wool, and comply with the requirements given in table 1. SANS 1860:2008 Edition 1.1 5 Table 1 Requirements for wool packs 1 2 3 4 Requirement Property Nylon HDPE Test method subclause Total mass of bag, kg. Mass per unit area of fabric, g/m, guideline Weave . No. of thr
24、eads per 10 cm, min. warp . weft. Penetration force, N, min. 16 mm ball 6 mm rod Breaking strength, N, min. warp . weft. Extension at break, %, max. warp . weft. Tear strength, N, min. warp . weft. Seam strength, N, min. side bottom Single tape/yarn strength, N, min. warp . weft. Single tape/yarn ex
25、tension, %, max. warp . weft. UV Stability, N, min. warp . weft. Non-fibrillation ratinga 1,3-1,7 300 plain 80 80 1 100 175 3 000 3 000 35 25 450 450 1 750 1 750 80 80 25 40 2 500 2 500 n/a 1,7-1,8 350 plain 50 50 1 100 175 2 250 2 250 35 25 450 450 1 750 1 750 80 80 25 40 2 050 2 050 3-4 5.5 5.5 5.
26、6 5.7 5.8 5.9 5.9 5.10 5.11 5.12 5.12 5.13 5.14 Surface friction, N, guideline 3,5 and 6,0 5.15 aRatings: 1 = poor / 5 = perfect 4.2 Dimensions The pack shall be constructed from the full width of the fabric. The pack shall be box-shaped (see figure 1) with the top and bottom ends of nominal interna
27、l dimensions (700 mm 10 mm) (700 mm 10 mm) and shall be constructed from three pieces of fabric. One piece shall form the front, bottom, back and top panels and the two other pieces shall form the side panels. All cut edges of the fabric shall be hemmed and the upper 175 mm 25 mm of the side panels
28、shall not be sewn to the front and back panels. The finished length of the front, back and side panels shall be 1 270 mm 25 mm and the length of the top flap, measured from the top of the side panel, shall be not less than 750 mm. 4.3 Colour HDPE packs shall be of a beige or light brown colour incor
29、porating two vertical blue stripes consisting of two warp tapes woven into the fabric, 130 mm from the selvedge. SANS 1860:2008 Edition 1.1 6 Figure 1 Wool pack dimensions 4.4 Stitching 4.4.1 The pack seams and hems shall be sewn with appropriate quality undyed multifilament nylon sewing thread in w
30、hich each individual filament does not exceed 10 decitex. In the case of nylon packs, the type of nylon used for stitching shall be the same type of nylon as that used in the pack (nylon 6 or 6.6). The seam type for top and side seams shall be type Ssa (see SANS 10101), as in figure 2. The hem type
31、shall be as in figure 3. 4.4.2 The ends of the sewing threads shall be cut and permanently heat-sealed to prevent unravelling. Both seams and hems shall be backstitched for at least five stitches to prevent seam runs. After completion of the stitching operation, the length of the heat-sealed loose e
32、nds of sewing threads shall not exceed 20 mm. The cut edges of the pack seam and of the flaps shall be permanently heat-sealed without visible fraying. In addition, the cut edges of the flaps shall be folded twice and hemmed. The minimum stitch density for the hems and seams shall be 10 stitches per
33、 100 mm. The stitch type shall be type 401 of SANS 10101. SANS 1860:2008 Edition 1.1 7 Figure 2 Seam type: Ssa Figure 3 Hem type 5 Inspection and methods of test 5.1 Inspection Visually inspect the specimens to check for compliance with 4.1, 4.2, 4.3 and 4.4. 5.2 Sampling levels During inspection an
34、d testing, use sampling levels that are established by the responsible laboratory and the manufacturer to ensure a reasonable and acceptable reliability at a reasonable and acceptable confidence level that products certified as being compliant with the standard are, in fact, compliant (see annex B).
35、 For information on quality verification of wool packs for unprocessed wool, see annex C. 5.3 Preparation of test specimens Condition the test specimens in accordance with SANS 70, and then cut the specimens required for the relevant tests given in 5.4 to 5.15 (inclusive). 5.4 Composition Use AATCC
36、test method 20-2007. 5.5 Mass per unit area and total mass Use SANS 79 to determine the mass per unit area of the fabric. Determine the total mass of each bag by means of a calibrated balance. Check for compliance with table 1. 5.6 Weave Determine by visual examination. Check for compliance with tab
37、le 1. 5.7 Number of threads per 10 cm Use SANS 7211-2 and count the ends and picks over a distance of 100 mm. Check for compliance with table 1. SANS 1860:2008 Edition 1.1 8 5.8 Penetration force 5.8.1 Principle This method is used for the determination of the force required to pierce the fabric by
38、means of blunt-rod and ball-shaped probes (see figure 4). A specimen of the fabric is held tightly stretched over the end of a tube by a jubilee clip. The tube is housed in the top cage of a compression fixture attached to the upper moving crosshead of the tester. The bottom cage, which is intercoup
39、led to the top cage, is fixed to the base of the test frame and has a piercing probe suspended from its upper plate. When the crosshead is activated upwards, the stretched material is driven against the piercing probe so that the cell in the moving crosshead signals the load needed to stretch and fi
40、nally pierce the fabric. NOTE See figures 5, 6, 7, 8, 9 and 10 for further dimensions. Figure 4 Ball and rod penetrator SANS 1860:2008 Edition 1.1 9 Figure 5 Top and base plate (B) Figure 6 Edge view of top and base plate (B) SANS 1860:2008 Edition 1.1 10 Figure 7 Top and base plate (C) Figure 8 Edg
41、e view of base plates (B b) batch number; or c) coded year of manufacture; and d) composition or type of nylon (6 or 6.6). 6.3 Additional marking If so required, packages or bulk containers (or both) shall bear information additional to that specified in 6.2 (see annex A). SANS 1860:2008 Edition 1.1
42、 19 Annex A (normative) Notes to purchasers The following requirements shall be specified in tender invitations and in each order or contract: a) the type of wool pack (nylon or HDPE) (see 4.1.1); and b) additional marking, if required (see 6.3). Annex B (normative) Sampling and compliance with this
43、 standard A predetermined number of bales shall be identified from a consignment batch and one pack from each bale shall be drawn for inspection and testing, in accordance with clause 5. A batch shall be deemed to comply with the requirements of this standard if the average test result does not devi
44、ate more than 5 % (either below the minimum requirement or above the maximum requirement, as appropriate). In the case of subjective ratings, a half grade will apply. Table B.1 Selection of packs for testing 1 2 3 Consignment / Batch size Minimum number of packs required for inspecting and testing S
45、ampling regimen Bundle number Up to 3000 Up to 10 000 Up to 20 000 Up to 30 000 3 5 8 10 1, 30 and 60 1, 50, 100, 150 and 200 1, 60, 120, 180, 230, 290, 350 and 400 1, 70, 140, 210, 270, 340, 400, 470, 540 and 600 SANS 1860:2008 Edition 1.1 20 Annex C (informative) Quality verification of wool packs
46、 for unprocessed wool When a purchaser requires ongoing verification of the quality of wool packs for unprocessed wool, it is suggested that, instead of concentrating solely on evaluation of the final product, he also direct his attention to the manufacturers quality system. In this connection it should be noted that SANS 9001 covers the provisions of an integrated quality system. Bibliography SANS 9001/ISO 9001, Quality management systems Requirements. Standards South Africa
