SANS 1887-9-2008 Tissue paper Part 9 Wrappers for citrus and deciduous fruit《棉纸 第9部分 柑桔及落叶水果的包装纸》.pdf

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 978-0-626-21910-9 SANS 1887-9:2008Edition 1SOUTH AFRICAN NATIONAL STANDARD Tissue paper Part 9: Wrappers for citrus and deciduous fruit WARNING Fron

4、t-end standard. Can only be used in conjunction with SANS 1887-1. Published by SABS Standards Division 1 Dr Lategan Road Groenkloof Private Bag X191 Pretoria 0001 Tel: +27 12 428 7911 Fax: +27 12 344 1568 www.sabs.co.za SABS SANS 1887-9:2008 Edition 1 Table of changes Change No. Date Scope Foreword

5、This South African standard was approved by National Committee SABS SC 1011D, Tissue paper Wrappers for citrus and deciduous fruit, in accordance with procedures of the SABS Standards Division, in compliance with annex 3 of the WTO/TBT agreement. This document was published in September 2008. This d

6、ocument supersedes SABS 526:1974 (edition 2). SANS 1887 consists of the following parts, under the general title Tissue paper: Part 1: General requirements. Part 2: Toilet paper. Part 3: Facial tissues. Part 4: Paper towels. Part 5: Disposable wiping paper (in rolls). Part 6: Paper dressing (medical

7、) towels. Part 7: Paper serviettes. Part 8: Paper-towel rolls for centre-feed dispensing devices. Part 9: Wrappers for citrus and deciduous fruit. Annexes A and B form an integral part of this document. Annex C is for information only. SANS 1887-9:2008 Edition 1 1 Contents Page Foreword 1 Scope . 3

8、2 Normative references . 3 3 Definitions 3 4 Requirements . 3 5 Inspection and methods of test . 5 5.1 Conditioning . 5 5.2 Inspection. 5 5.3 Basis weight (grammage). 5 5.4 Petroleum wax content of wax-impregnated wrappers 5 5.5 Fungicide content. 5 5.6 Bursting strength 6 5.7 Tensile properties, dr

9、y 6 6 Packing 6 7 Marking . 7 Annex A (normative) Notes to purchasers. 8 Annex B (normative) Sampling and compliance with this part of SANS 1887 . 8 Annex C (informative) Quality verification of wrappers for citrus and deciduous fruit . 9 Bibliography. 9 SANS 1887-9:2008 Edition 1 2 This page is int

10、entionally left blank SANS 1887-9:2008 Edition 1 3 Tissue paper Part 9: Wrappers for citrus and deciduous fruit 1 Scope This part of SANS 1887 covers paper wrappers intended for use for the wrapping of citrus and deciduous fruit. 2 Normative references The following referenced documents are indispen

11、sable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. Information on currently valid national and international standards can be obtained from the SAB

12、S Standards Division. SANS 1887-1:2008, Tissue paper Part 1: General requirements. 3 Definitions For the purpose of this part of 1887-9, the definitions given in SANS 1887-1 and the following apply. 3.1 chemically processed pulp pulp consisting of sulphite- or sulphate wood fibres (or a mixture of s

13、uch fibres), and that does not contain more than a mass fraction of 5 % of mechanical wood pulp 3.2 test set group of fifteen wrappers taken consecutively from a position approximately 15 mm from the top or bottom of a bundle 4 Requirements 4.1 Material 4.1.1 Paper 4.1.1.1 The paper shall comply wit

14、h the requirements for visual properties of SANS 1887-1. SANS 1887-9:2008 Edition 1 4 4.1.1.2 If the paper has been chemically treated by the addition of oil or other material (see 4.3 and 4.4), the chemical substance shall have been incorporated in an acceptable manner that minimizes the possibilit

15、y of such chemical treatment causing the wrappers to stick together. 4.1.1.3 The physical properties of the paper shall comply with the physical requirements as listed in table 1 of SANS 1887-1:2008. 4.2 Dimensions of wrappers 4.2.1 Wrappers shall be supplied in the following nominal sizes, as speci

16、fied by the purchaser (see annex A): Table 1 Nominal dimensions 1 Dimensions mm 150 150 175 175 200 200 225 225 250 250 275 275 300 300 325 325 375 500 400 400 4.2.2 Wrappers shall be squarely cut, and the actual length and width shall not differ from the nominal value by more than %52,5+. 4.3 Petro

17、leum wax content 4.3.1 When petroleum wax-impregnated wrappers are required by the purchaser (see annex A), both the petroleum wax used and the wax content of the wrappers (determined in accordance with 5.4) shall be as specified by the purchaser (see annex A). 4.3.2 The wax shall be non-toxic, colo

18、urless, odourless, and tasteless and shall not adversely affect the flavour or texture of the fruit. 4.3.3 Unless impregnation to a specific pattern is specified by the purchaser (see annex A), the impregnation shall be uniform over the entire surface of each wrapper. 4.4 Fungicide content 4.4.1 Whe

19、n fungicide-impregnated wrappers are required by the purchaser (see annex A), both the fungicide used and the fungicide content of the wrappers (determined in accordance with 5.5) shall be as specified by the purchaser (see annex A). SANS 1887-9:2008 Edition 1 5 4.4.2 Unless impregnation to a specif

20、ic pattern is specified by the purchaser (see annex A), the impregnation shall be uniform over the entire surface of each wrapper. 4.5 Colour and printing The colour of the wrappers and any printing on the wrappers shall be as specified by the purchaser (see annex A). Dyes and printing media used sh

21、all be such that the wrappers neither stain nor adversely affect the fruit. 5 Inspection and methods of test 5.1 Conditioning Use the method given in SANS 1887-1. 5.2 Inspection 5.2.1 Test specimens Take at random one wrapper from each test set taken in accordance with B.1 (see annex B). 5.2.2 Proce

22、dure Determine the dimensions of each specimen and examine it for compliance with the appropriate requirements of clause 4 and clause 5. 5.3 Basis weight (grammage) 5.3.1 Test specimens Take at random from the test sample taken in accordance with B.1 enough wrappers to give a total area of at least

23、0,5 m. Do not take more that one wrapper from any test set unless it is necessary to do so to make up the required area. 5.3.2 Procedure Use the method given in SANS 1887-1. In the case of chemically treated wrappers, subtract the mass, as determined in 5.4 and 5.7 (as relevant), of the impregnant(s

24、). Express the basis weight in grams per square metre to three significant figures. 5.4 Petroleum wax content of wax-impregnated wrappers Use the method given in SANS 1887-1. 5.5 Fungicide content Use an acceptable method. SANS 1887-9:2008 Edition 1 6 5.6 Bursting strength 5.6.1 Test specimens From

25、the test sets taken in accordance with B.1 take at random fifteen wrappers and form them into five composite specimens, each consisting of three wrappers, ensuring that the edges of wrappers in each specimen are in alignment. 5.6.2 Procedure Use the method given in SANS 1887-1. 5.7 Tensile propertie

26、s, dry 5.7.1 Test specimen From each of at least ten test sets taken in accordance with B.1, take at random one wrapper. 5.7.2 Apparatus Use the apparatus given in SANS 1887-1. 5.7.3 Procedure 5.7.3.1 From each of these wrappers cut two specimens of length (if possible) 200 mm and of width precisely

27、 15 mm, one specimen being cut parallel to the machine direction and the other parallel to the cross direction of the paper. Do not cut specimens from damaged areas or areas containing creases. 5.7.3.2 With the jaws of the instrument (see 5.7.2) 180 mm 10 mm apart, clamp a specimen securely in posit

28、ion. If the specimen is too short, decrease the distance between the jaws to the maximum distance that can be used without the specimen slipping in the jaws. Apply the load at such a rate that the specimen breaks within 20 s 5 s. 5.7.3.3 Repeat the above procedure with each of the other specimens. 5

29、.7.3.4 Record, to the nearest 0,1 N, the tensile strengths of each specimen, in newtons per metre. Report the maximum, minimum, and average results in the machine direction and the cross direction separately, and the nominal distance between the jaws at the start of each test. NOTE For quality verif

30、ication of wrapper for citrus and deciduous fruit, refer to annex C. 6 Packing The wrappers shall be supplied in bundles each containing five thousand wrappers, and the bundles shall be packed in acceptable packages. Wrappers impregnated with a fungicide shall be adequately protected against loss of

31、 fungicide due to evaporation. Only wrappers of the same nominal size, chemical treatment, colour, and printing shall be packed together in a bundle and in a package. SANS 1887-9:2008 Edition 1 7 7 Marking The following information shall appear in legible and indelible marking on each package: a) th

32、e manufacturers name, trade name, or trademark; b) grammage of the wrappers; c) size of the wrappers; d) colour of the wrappers; e) printing on the wrappers; f) when relevant, nature of printing on wrappers; g) number of wrappers in the package; h) a batch identification; and i) any additional infor

33、mation required by the purchaser (see annex A). SANS 1887-9:2008 Edition 1 8 Annex A (normative) Notes to Purchasers The following requirements shall be specified in tender invitations and in each order or contract: a) the size(s) (see 4.2); b) whether wax-impregnated wrappers are required (see 4.3.

34、1); c) when relevant, the wax to be used and the limits for the wax content (see 4.3.1); d) when relevant, the impregnation pattern (see 4.3.3 and 4.4.2); e) whether fungicide-impregnated wrappers are required (see 4.4); f) when relevant, the fungicide to be used and the limits for the fungicide con

35、tent on the wrappers (see 4.4.1); g) the colour of the wrappers and any printing (see 4.5); and h) additional marking, if required (see 7(i). Annex B (normative) Sampling and compliance with this part of SANS 1887 NOTE This annex applies to the sampling for inspection and testing before acceptance o

36、r rejection of single lots (consignments) in cases where no information about the implementation of quality control or testing during manufacture is available to help in assessing the quality of the lot. It is also used as the procedure for adjudicating in cases of dispute. B.1 Sampling B.1.1 The fo

37、llowing sampling procedure shall be applied in determining whether a lot complies with the appropriate requirements of this part of SANS 1887. The samples so taken shall be deemed to represent the lot. B.1.2 After inspecting for compliance with the requirements of clause 6 and clause 7, take from th

38、e lot (when relevant, at random) twenty bundles of wrappers and from each bundle draw a test set of wrappers. Keep the wrappers flat and free from wrinkles and folds. In the case of chemically treated wrappers, ensure that each test set is taken immediately after the bundle is unwrapped, and place t

39、he test sets without delay in individual air-tight containers. SANS 1887-9:2008 Edition 1 9 B.2 Compliance with this part of SANS 1887 The lot shall be deemed to comply with the requirements of this part of SANS 1887 if, on inspection and testing (see clause 5) of the sample taken in accordance with

40、 B.1, for compliance with the requirements of clauses 4, 6 and 7, no defective is found. Annex C (informative) Quality verification of wrappers for citrus and deciduous fruit When a purchaser requires ongoing verification of wrappers for citrus and deciduous fruit, it is suggested that, instead of c

41、oncentrating 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 provision for an integrated quality system. Bibliography SANS 9001/ISO 9001, Quality management systems Requirements. SABS