1、 g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58geometrical characteristicsICS 79.080; 97.150Laminate floor coverings Determination of BRITISH STAN
2、DARDBS ISO 24337:2006BS ISO 24337:2006This British Standard was published under the authority of the Standards Policy and Strategy Committee on 29 September 2006 BSI 2006ISBN 0 580 48444 0Amendments issued since publicationAmd. No. Date Commentscontract. Users are responsible for its correct applica
3、tion.Compliance with a British Standard cannot confer immunity from legal obligations.National forewordThis British Standard was published by BSI. It is the UK implementation of ISO 24337:2006.The UK participation in its preparation was entrusted to Technical Committee PRI/60, Resilient floor coveri
4、ngs. A list of organizations represented on PRI/60 can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a Reference numberISO 24337:2006(E)INTERNATIONAL STANDARD ISO24337First edition2006-08-01Laminate floor coverings Determination
5、of geometrical characteristics Revtements de sol stratifis Dtermination des caractristiques gomtriques BS ISO 24337:2006ii iiiContents Page Foreword iv 1 Scope . 1 2 Symbols . 1 3 Test apparatus 1 4 Test specimens . 2 4.1 General. 2 4.2 Sampling 2 5 Conditioning 3 6 Test procedure 3 6.1 Determinatio
6、n of thickness (t) . 3 6.2 Determination of length (l) . 3 6.3 Determination of width (w) . 4 6.4 Determination of squareness (q) . 4 6.5 Determination of straightness (s) 5 6.6 Determination of width flatness (fw) . 6 6.7 Determination of length flatness (fl) 6 6.8 Determination of openings between
7、 elements (o). 7 6.9 Determination of height difference between elements (h) 8 7 Calculations and expression of results 8 7.1 Thickness (t) 8 7.2 Length (l) 8 7.3 Width (w) 8 7.4 Squareness (q) 9 7.5 Straightness (s) . 9 7.6 Width flatness (fw) 9 7.7 Length flatness (fl) 9 7.8 Openings between eleme
8、nts (o) 9 7.9 Height difference between elements (h) . 9 8 Test report . 9 Annex A (informative) Example of test results form. 10 BS ISO 24337:2006iv Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work
9、 of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmen
10、tal, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The ma
11、in task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. At
12、tention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 24337 was prepared by Technical Committee ISO/TC 219, Floor coverings. BS ISO 24337:20061Laminate f
13、loor coverings Determination of geometrical characteristics 1 Scope This International Standard gives test methods to determine the dimensional variance between elements of laminate floor coverings in a manufactured free-standing shape (unrestricted) in respect to thickness, length, width, squarenes
14、s, straightness, width flatness, length flatness, openings between assembled elements and height differences between assembled elements. The precision of the specified test methods is not known. When the interlaboratory data becomes available, a precision statement will be added in subsequent revisi
15、ons. 2 Symbols d distance between supports on apparatus for measuring width flatness fllength flatness of a laminate floor covering element fwwidth flatness of a laminate floor covering element h height difference between assembled laminate floor covering element l length of a laminate floor coverin
16、g element, visible length of the surface layer o opening between assembled laminate floor covering element q squareness of a laminate floor covering element s straightness of a laminate floor covering element t total thickness of a laminate floor covering element w width of a laminate floor covering
17、 element, visible width of the surface layer 3 Test apparatus 3.1 Micrometer, calliper gauge or any other equivalent tool, having flat and parallel circular measuring surfaces of at least 16 mm diameter and an operating force of (4 1) N, with an accuracy of 0,05 mm, for thickness measurements (Z-axi
18、s dimension). 3.2 Calliper gauge or any other equivalent tool with an accuracy of 0,05 mm for width measurements, and 0,1 mm for length measurements. 3.3 Square (straight edge), with arms of at least 300 mm and having a maximum angular deviation of 0,02 mm over 300 mm. BS ISO 24337:20062 3.4 Set of
19、thickness gauges, ranging from 0,05 mm to 0,10 mm in steps of 0,01 mm, and from 0,10 mm to 1,00 mm in steps of 0,05 mm. 3.5 Steel ruler, of length at least equal to the length of two specimens, and having a maximum straightness deviation of 0,05 mm over 1 000 mm. 3.6 Apparatus for measuring width fl
20、atness, consisting of a dial gauge accurate to 0,01 mm with a rounded tip of radius u 5,5 mm, installed centrally in relation to three rounded supports with radii W 5 mm. The supports shall be adjustable along a T-shaped assembly of bars to provide the required gauge length. The measurement, d, shal
21、l not be less than the width, w, of the test specimen minus 10 mm. The tip of the gauge in contact with the face of the test specimen shall apply a force of (1,0 0,5) N. The mass of the apparatus shall not affect the flatness of the test specimen beyond the limit of the accuracy of the gauge. The in
22、strument shall be set to zero against a suitable reference plate. See Figure 1. Key 1 dial gauge 2 T-groove 3 adjustable pin 4 adjustable bridge Figure 1 Apparatus for measuring width flatness 3.7 Test surface, of appropriate size that is preferably angled towards the operator by 15 to 30 and in a h
23、eight suited for standing work. The test surface should be rigid and flat. 4 Test specimens 4.1 General Test specimens shall be of the nominal size as produced by the manufacturer. The test specimens shall not be restricted from movement during the tests (i.e. bonded to other materials). A specimen
24、under test must be a single sample of nominal manufactured size. All surfaces of a specimen shall be free from foreign bodies and any protrusion from the face and edges. These materials must be removed prior to the start of the test. 4.2 Sampling Take five laminate floor covering elements as test sp
25、ecimens. BS ISO 24337:200635 Conditioning Test specimens are normally measured in the received state. For type approval or verification purposes, the test specimens shall be stabilized to a constant mass in an atmosphere of (23 3) C, (73 5) F and (50 5) % relative humidity. Constant mass is consider
26、ed to be reached when the results of two successive weighing operations, carried out at an interval of 24 h, do not differ by more than 0,1 % of the mass of the test specimens. If there is any deviation from this conditioning, it shall be stated in the test report. 6 Test procedure 6.1 Determination
27、 of thickness (t) For each of the five specimens, using the micrometer, calliper gauge or any other equivalent tool, measure the thickness, t, at a distance of 20 mm from the edges of the surface layer, at four points located in each corner and at two points in the middle of the specimen at 20 mm fr
28、om each long side (see Figure 2). Close the jaws gently onto the surfaces between which the thickness is to be measured. Do not force the instrument. Record all 30 measured values to the nearest 0,05 mm. Dimensions in millimetres Figure 2 Measuring points for determination of thickness (t) 6.2 Deter
29、mination of length (l) For each of the five specimens, using the appropriate calliper gauge or any other equivalent tool, measure the length, l, of the surface layer along two lines parallel to the axis of the test specimen, at a distance of 20 mm from the long sides (see Figure 3). For squared elem
30、ents, choose one direction for the measurement. Close the jaws gently onto the edges of the surface layer between which the length is to be measured. Do not force the instrument. Record all 10 measured values to the nearest 0,1 mm. BS ISO 24337:20064 Dimensions in millimetres Figure 3 Measuring poin
31、ts for determination of length (l) 6.3 Determination of width (w) For each of the five specimens, using the appropriate calliper gauge or any other equivalent tool, measure the width, w, along two lines parallel to the short sides of the surface layer, at a distance of 20 mm from the short sides (se
32、e Figure 4). For squared elements, take the direction perpendicular to the direction chosen in 6.2. Close the jaws gently onto the edges of the surface layer between which the width is to be measured. Do not force the instrument. Record all 10 measured values to the nearest 0,05 mm. Dimensions in mi
33、llimetres Figure 4 Measuring points for determination of width (w) 6.4 Determination of squareness (q) For each of the five specimens, place one side of the square against one long side of the surface layer of the element. Using the thickness gauges, determine the maximum deviation from square qmaxa
34、t the small side. Repeat the procedure on the diagonally opposite corner, see Figure 5. Place the square firmly against the edges of surface layer of the element of which the squareness is to be measured. Do not force the thickness gauges. Record all ten measured values with the result achieved from
35、 the appropriate thickness gauge. BS ISO 24337:20065Figure 5 Determination of squareness (q) 6.5 Determination of straightness (s) For each of the five specimens, place the specimen with the surface layer up, on the test surface. Place one long side of the surface layer of the specimen firmly agains
36、t the steel ruler. If a gap is visible, insert vertically a thickness gauge of successive thickness leaves into the gap at the maximum deviation until the largest thickness leaf that will fit without force into the gap is found. This value is the maximum deviation smaxfrom the ruler. Measure only th
37、e position where smaxis found in the centred regions of the panel, see Figure 6. Record all five measured values with the result achieved from the appropriate thickness gauge. Figure 6 Determination of straightness (s) BS ISO 24337:20066 6.6 Determination of width flatness (fw) 6.6.1 Adjustment and
38、calibration of the apparatus On the apparatus for measuring width flatness adjust the supports along the T-shaped assembly of bars according to the width of the test specimen to evaluate. The measurement, d, shall be adjusted not be less than the width, w, of the test specimen minus 10 mm, i.e. d W
39、w 10 mm (see Figure 9). Use an appropriate calliper gauge and measure the d value. Record the d value to the nearest 0,5 mm. The apparatus shall be set to, or verified to, zero against the reference plate before each measurement. 6.6.2 Measuring For each of the five specimens, place the specimen wit
40、h the surface layer up, on the test surface. Place the adjusted and zeroed apparatus for measuring width flatness on the specimen as shown in Figure 7. Find and determine the maximum deviation of fwfor each element. No force, but the mass of the apparatus, shall affect the flatness of the test speci
41、men when the measurement is taken. The maximum deviation can be either positive or negative, this shall carefully be noticed. Record all five measured values, with their signs, to the nearest 0,01 mm. Figure 7 Determination of width flatness (fw) 6.7 Determination of length flatness (fl) For each of
42、 the five specimens, place the test specimen firmly against the steel ruler as shown in Figure 8. If a gap is visible, insert a thickness gauge of successive thickness leaves into the gap at the maximum deviation until the largest thickness leaf that will fit without force into the gap is found. Thi
43、s value is the maximum deviation of fl. If necessary, use the calliper gauge instead. The measured value shall be expressed as negative when the surface layer is facing towards the ruler and as positive when the surface layer is facing away from the ruler. Record all five measured values, each with
44、its sign, with the result achieved from the appropriate thickness gauge. BS ISO 24337:20067Key 1 test specimen 2 steel ruler Figure 8 Determination of length flatness (fl) 6.8 Determination of openings between elements (o) 6.8.1 Assembling By hand force, without using any glue, against the steel rul
45、er as a guide, firmly assemble seven elements taken as specimens on the test surface as shown in Figure 9. The alignment of the individual elements shall be ensured within 5 mm. No difference shall be made whether the joint design is of a glue-less mechanical type, or of a design to be glued or by a
46、ny other means held together. Glue shall in any case NOT be used for this assembly. Key 1 test specimen 2 measuring point 3 steel ruler Figure 9 Test assembly for openings between elements, with the 6 measuring points indicated 6.8.2 Measuring Using the thickness gauges, measure the openings, withou
47、t applying any force to the elements, at the six indicated points in Figure 9. Record all six measured values with the result achieved from the appropriate thickness gauge. BS ISO 24337:20068 6.9 Determination of height difference between elements (h) 6.9.1 Assembling Use the same specimens as from
48、6.8, assembled as described in 6.8.1. The test assembly with the measuring points is illustrated in Figure 10. Key 1 test specimen 2 measuring point 3 steel ruler Figure 10 Test assembly for height difference between elements, with the 6 measuring points indicated 6.9.2 Measuring Using the calliper
49、or depth gauge, measure the height differences, without applying any force to the elements, at the six indicated points. Take into account the maximum height difference at either the left side or the right side of the junction. Place the base of the instrument at one side of the joint, and measure the maximum height difference at the other side of the joint. Do not carry out the measurement further than 5 mm from the joint edge. Record all six measured values to the nearest 0,05 mm. 7 Calculatio
