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 978-0-626-22399-1 SANS 540-2:2009 Edition 4.1 Any reference to SABS 540-2 is deemed to be a reference to this standard (Government Notice No. 1373 o
4、f 8 November 2002)SOUTH AFRICAN NATIONAL STANDARD Fibreboard products Part 2: Coated fibreboard 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 This standard may only be used and printed by
5、 approved subscription and freemailing clients of the SABS.SANS 540-2:2009 Edition 4.1 Table of changes Change No. Date Scope Amdt 1 2009 Amended to change the designation of SABS standards to SANS standards, to update referenced standards, and to remove reference to the certification mark. Foreword
6、 This South African standard was approved by National Committee SABS SC 1008B, Wood and associated products Reconstituted timber, in accordance with procedures of the SABS Standards Division, in compliance with annex 3 of the WTO/TBT agreement. This document was published in February 2009. This docu
7、ment supersedes SABS 540-2:1991 (third revision). A vertical line in the margin shows where the text has been technically modified by amendment No. 1. Annex A (Quality verification of coated fibreboard) and annex B (Notes to purchasers) form an integral part of this document. Annex C (Preferred dime
8、nsions) and annex D (Notes on the storage and handling of coated fibreboards) are for information only. Preface SABS 540:1971 was revised to update the contents in accordance with the latest capabilities of the industry. At the same time, the contents were extended to include requirements for coated
9、 boards. The test methods were removed from the original standard and have now been published as separate standards. To ensure more reliable test results, standard cutting plans were developed and are included in the test standards. This standard may only be used and printed by approved subscription
10、 and freemailing clients of the SABS.SANS 540-2:2009 Edition 4.1 1 Contents Page Foreword Preface 1 Scope 3 2 Normative references 3 3 Definitions . 4 4 Requirements 4 5 Packing and marking . 4 6 Inspection and methods of test 5 6.1 Inspection . 5 6.2 Abrasion resistance 5 6.3 Fade resistance 5 6.4
11、Specular gloss (60) of paint films 5 6.5 Heat resistance . 5 6.6 Humidity resistance 6 6.7 Scrape resistance . 6 6.8 Stain resistance 6 6.9 Steam resistance 6 6.10 Washability . 6 Annex A Quality verification of coated fibreboard 7 Annex B Notes to purchasers 8 Annex C Preferred dimensions 9 Annex D
12、 Notes on the storage and handling of coated fibreboards . 9 This standard may only be used and printed by approved subscription and freemailing clients of the SABS.SANS 540-2:2009 Edition 4.1 2 This page is intentionally left blank This standard may only be used and printed by approved subscription
13、 and freemailing clients of the SABS.SANS 540-2:2009 Edition 4.1 3 Fibreboard products Part 2: Coated fibreboard 1 Scope This part of the SANS 540 specifies the characteristics of coated fibreboard. 2 Normative references The following standards contain provisions that, through reference in this tex
14、t, constitute provisions of this part of SANS 540. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this part of SANS 540 are encouraged to investigate the possibility of applying the most recent editions of the
15、standards indicated below. Information on currently valid national and international standards can be obtained from the SABS Standards Division. SABS method 134:1984, Specular gloss (60) of paint films. Amdt 1 SABS method 143:1975, Dry abrasion resistance of paint films. Amdt 1 SABS method 405:1988,
16、 Colour fastness of textiles to artificial light: xenon lamp method. Amdt 1 SANS 105-B05/ISO 105-BO5, Textiles Tests for colour fastness Part B05: Detection and assessment of photochromism. Amdt 1 SANS 540-1, Fibreboard products Part 1: Uncoated fibreboard. SANS 2813/ISO 2813, Paints and varnishes D
17、etermination of specular gloss of non-metallic paint films at 20, 60 and 85. Amdt 1 SANS 2859-1/ISO 2859-1, Sampling procedures for inspection by attributes Part 1: Sampling plans indexed by acceptance quality limit (AQL) for lot-by-lot inspection. Amdt 1 SANS 5175, Paints and varnishes Determinatio
18、n of washability (brush method). SANS 6013, Dimensional and mass stability of particle boards with varying humidity. SANS 6179, Coated fibreboard Determination of resistance of coating to scraping. SANS 6180, Coated fibreboard Determination of resistance to staining. SANS 6181, Coated fibreboard Det
19、ermination of resistance to steam. This standard may only be used and printed by approved subscription and freemailing clients of the SABS.SANS 540-2:2009 Edition 4.1 4 3 Definitions For the purposes of this part of SANS 540, the definitions given in SANS 540-1 and the following definition apply: co
20、ated fibreboard fibreboard that has a coating and that may be indented with a pattern 4 Requirements 4.1 Base material The fibreboard used as the base material for coated fibreboard shall be one of the types given in SANS 540-1, as required. 4.2 Coating The coating and the properties of the coating
21、of coated fibreboard shall be of one of the following classes (see table 1), as required: a) class 1; or b) class 2. 4.3 Finished board 4.3.1 Except for the requirements for modulus of rupture, modulus of elasticity and internal bond, coated fibreboard shall comply with the relevant requirements giv
22、en in SANS 540-1 for uncoated fibreboard. 4.3.2 When tested in accordance with the appropriate test method given in column 4 of table 1, a coated fibreboard shall comply with the relevant requirements given in columns 2 or 3. 5 Packing and marking 5.1 Packing Coated fibreboard shall be so packed tha
23、t it is protected against damage during normal transportation, storage and handling. 5.2 Marking Each board shall bear at least the following information: a) the information required in SANS 540-1; b) the class of coating; c) the gloss rating. This standard may only be used and printed by approved s
24、ubscription and freemailing clients of the SABS.SANS 540-2:2009 Edition 4.1 5 Table 1 Requirements for coated fibreboard 1 2 3 4 Requirement Property Class 1 coating Class 2 coating Test method subclause Abrasion resistance 5 L of sand without marring print 3 L of sand without marring print 6.2 Fade
25、 resistance 100 h of light exposure with no loss of gloss and only a slight colour change when visually inspected 60 h of light exposure with no loss of gloss and only a slight colour change when visually inspected 6.3 Gloss: High Medium Low 50 units and over 25 to 50 units Under 25 units Same as cl
26、ass 1 6.4 Heat resistance Slight colour change NA 6.5 Humidity resistance No blistering, peeling, cracking or more than a slight colour change NA 6.6 Scrape resistance No coating scraped off under load of 6 kg No coating scraped off under load of 4 kg 6.7 Stain resistance NE (No effect) SE (Slight e
27、ffect) 6.8 Steam resistance Rating 0 NA 6.9 Washability No more than 5 units of change if under 50 units and no more than 10 if over 50 units NA 6.10 NA = Not applicable. 6 Inspection and methods of test 6.1 Inspection Visually inspect each board in the sample for compliance with those requirements
28、of this part of SANS 540 for which tests to assess compliance are not given in 6.2 to 6.10 (inclusive). 6.2 Abrasion resistance Use a test specimen of size 190 mm 203 mm cut from the sample board. Amdt 1 6.3 Fade resistance Use SANS 105-B05, but use a test specimen of size 70 mm 40 mm cut from the s
29、ample board. Amdt 1 6.4 Specular gloss (60) of paint films Use SANS 2813, but use a test specimen of size 100 mm 150 mm cut from the sample board. Amdt 1 6.5 Heat resistance Place a test specimen of size 100 mm 100 mm in an oven at 65 C for 24 h and check for compliance with the appropriate requirem
30、ent given in table 1. This standard may only be used and printed by approved subscription and freemailing clients of the SABS.SANS 540-2:2009 Edition 4.1 6 6.6 Humidity resistance Use SANS 6013 and determine the resistance at the high humidity condition only. 6.7 Scrape resistance Use SANS 6179. 6.8
31、 Stain resistance Use SANS 6180. 6.9 Steam resistance Use SANS 6181. 6.10 Washability Use SANS 5175. This standard may only be used and printed by approved subscription and freemailing clients of the SABS.SANS 540-2:2009 Edition 4.1 7 Annex A (normative) Quality verification of coated fibreboard A.1
32、 Quality verification A.1.1 When a purchaser requires ongoing verification of the quality of coated fibreboard, 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
33、noted that SANS 9001 covers the provision of an integrated quality system. Amdt 1 A.1.2 If no information about the implementation of quality control or testing during manufacture is available to help in assessing the quality of a lot, and a purchaser wishes to establish by inspection and testing of
34、 samples of the final product whether a lot (as defined in A.2.1) of the coated boards complies with this part of SANS 540, the sampling plan given in A.2.2 and based on the stated AQLs shall be applied. (If a different AQL is required, reference should be made to applicable statistical sampling tab
35、les.) Amdt 1 It must be noted that a) such a sampling plan applies to fully manufactured products only; and b) a lot that in terms of the plan is deemed to comply with this part of SANS 540, could contain defective coated boards to an extent proportional to that permitted by the relevant acceptance
36、numbers given in the sampling table. A.2 Assessment of compliance A.2.1 Definitions A.2.1.1 acceptable quality level AQL the maximum percentage defectives that for the purpose of sampling inspection can be considered satisfactory as a process average A.2.1.2 defective a coated fibreboard that fails
37、in one or more respects to comply with the relevant requirements of this part of SANS 540 A.2.1.3 lot not less than 26 and not more than 3 200 coated boards of the same type from one manufacturer, submitted at any one time for inspection and testing NOTE If a lot consists of fewer than 26 coated fib
38、reboards, carry out 100 % inspection and testing. A.2.2 Sampling Use the following sampling procedure to determine whether a lot complies with this part of SANS 540 and deem the samples so taken to represent the lot for the respective properties: a) sample for inspection: from the lot draw at random
39、 the number of coated boards given in column 2 of table A.1, relative to the appropriate lot size given in column 1; This standard may only be used and printed by approved subscription and freemailing clients of the SABS.SANS 540-2:2009 Edition 4.1 8 b) sample for testing: after inspection of the sa
40、mple taken in accordance with (a) above, take from it at random the appropriate number of coated boards given in column 4 of table A.1. Table A.1 Sampling plan 1 2 3 4 5 Lot size Sample for inspection (AQL = 4,0) Sample for testing (AQL = 4,0) Coated boards Sample size Acceptance 1)No. Sample size A
41、cceptance 1)No. 26 91 151 90 150 280 13 20 32 1 2 3 3 3 13 0 0 1 281 501 1 201 500 1 200 3 200 50 80 125 5 7 10 13 13 20 1 1 2 1) Based on table 12-A of SANS 2859-1:1999 for general inspection level II. Amdt 1 A.2.3 Criteria for compliance Deem the lot to comply with the relevant requirements of thi
42、s part of SANS 540 if: a) on inspection of the sample taken in accordance with A.2.2(a), the number of defectives found does not exceed the relevant acceptance number given in column 3 of table A.1; and b) on testing of the sample taken in accordance with A.2.2(b), the number of defectives found doe
43、s not exceed the relevant acceptance number given in column 5 of table A.1. Annex B (normative) Notes to purchasers The following requirements must be specified in tender invitations and in each order or contract: a) the type of fibreboard (see 4.1); b) the class and gloss rating of coating (see 4.2
44、 and table 1). This standard may only be used and printed by approved subscription and freemailing clients of the SABS.SANS 540-2:2009 Edition 4.1 9 Annex C (informative) Preferred dimensions The following are industry-preferred sizes of fibreboard: a) 3,2 mm standard embossed: 2 440 mm 1 220 mm 4 8
45、80 mm 1 220 mm b) 3,2 mm and 6,4 mm coated boards (woodgrain and textured finishes): 2 440 mm 1 220 mm 2 750 mm 1 220 mm c) 4,0 mm coated boards (woodgrain finishes): 2 745 mm 1 220 mm Annex D (informative) Notes on the storage and handling of coated fibreboards D.1 Stacking of coated fibreboards Co
46、ated boards should be stacked flat on a level surface and not on an edge. All boards should be stacked on pallets or spacer chocks (dunnages). The chocks should be so placed that there is a chock flush with each end of the board. The other chocks should be equally spaced at centres not exceeding 450
47、 mm. Chocks of all consecutive stacks should be vertical above one another (see figure D.1). (For sufficient fork-lift entry and load-bearing area, chocks of size 76 mm 76 mm are suitable.) D.2 Ground contact Coated boards shall not at any time be in contact with the floor or the ground. D.3 Strappi
48、ng Where boards are to be strapped, adequate protectors should be used to prevent straps from cutting into boards. It is common practice to use reject or packing boards at the top and bottom of a stack, but this will not always provide protection from strapping. D.4 Lifting Stacks are best lifted by
49、 fork-lift or sideloader, with forks at a distance of one third of the length of the stack, the forks being of width at least 100 mm and of length at least equal to the width of the stack. Sling lifting is best done using an adequate spreader frame, with slings spaced as for the forks of a fork-lift. This standard may only be used and printed by approved subscription and freemailing clients of the SABS.SANS 540-2:2009 Edition 4.1 10 D.5 Mechanical damage Mechanical damage during handling and transportation should be avoided.
