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 978-0-626-21488-3 SANS 1172:2008Edition 1.4Any reference to SABS 1172 is deemedto be a reference to this standard(Government Notice No. 1373 of 8 No
4、vember 2002)SOUTH AFRICAN NATIONAL STANDARD Files and rasps 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 1172:2008 Edition 1.4 Table of chang
5、es Change No. Date Scope Amdt 1 1983 Amended to change a definition and to include an additional type of file. Amdt 2 1988 Amended to reduce the required width of blunt heavy mill files of length 300 mm, and to change a definition. Amdt 3 1991 Amended to change the specific requirements for hand fil
6、es. Amdt 4 2008 Amended to change the designation of SABS standards to SANS standards and to update the definition of “acceptable”. Acknowledgement Standards South Africa wishes to acknowledge the valuable assistance derived from publications of the International Organization for Standardization. Fo
7、reword This South African standard was approved by National Committee StanSA TC 5120.07, Handheld non-electrical tools for general purpose use, in accordance with procedures of Standards South Africa, in compliance with annex 3 of the WTO/TBT agreement. This document was published in July 2008. This
8、 document supersedes SABS 1172:1977 (edition 1). A vertical line in the margin shows where the text has been technically modified by amendment Nos 1, 2, 3 and 4. SANS 1172:2008 Edition 1.4 1 Contents Page Acknowledgement Foreword 1 Scope 3 2 Definitions . 3 3 General requirements 4 4 Specific requir
9、ements 5 5 Packing and marking . 8 6 Sampling and compliance with the specification 9 7 Inspection and methods of test 9 7.1 Inspection . 9 7.2 Performance test 10 Appendix A Notes to purchasers . 22 SANS 1172:2008 Edition 1.4 2 This page is intentionally left blank SANS 1172:2008 Edition 1.4 3 File
10、s and rasps 1 Scope 1.1 This specification covers the material, dimensional, and finish requirements for the following four categories of tools: NOTE a) Machinists files b) Saw files c) Miscellaneous files d) Rasps NOTE Requirements that must be specified by the purchaser are listed in appendix A. 2
11、 Definitions 2.1 For the purposes of this specification the following definitions shall apply: acceptable acceptable to the authority administering this standard, or to the parties concluding the purchase contract, as relevant Amdt 1; amdt 2; amdt 4 cross-section the cross-section at the uncut porti
12、on of the file or rasp adjacent to the shoulder but, in the case of tools with no tang, the cross-section at the mid-point defective a file or rasp that fails in one or more respects to comply with the appropriate requirements of the specification double-cut two series of parallel cuts on a file sur
13、face, one series being at an angle to the other file-cut having teeth that are formed by a chopping process SANS 1172:2008 Edition 1.4 4 length the distance between the point and the shoulder (junction of the body and tang) but, in the case of files and rasps that have no tang, the over-all length l
14、ot not less than 10 and not more than 500 files or rasps of the same type, length and, in the case of files, type of cut, from one manufacturer, submitted at any one time for inspection and testing point the end of a file or rasp opposite the tang rasp-punched having teeth that are formed by a punch
15、ing process shoulder the junction between the body of a file or rasp and the tang single-cut one series of parallel cuts on a file surface tang the tapered portion at one end of a file or rasp that is intended to be fitted with a handle type of cut the degree of coarseness of the teeth of a file, de
16、signated (in order of increasing numbers of teeth per unit length measured along the centre line) as bastard, second cut, or smooth 3 General requirements 3.1 Material The chemical composition of steel for files and rasps shall be such as will result in the production of a tool having good cutting q
17、ualities (see also 3.8). 3.2 Type and cut The type of file or rasp and, when relevant, the type of cut shall be as specified by the purchaser and shall be one of the types and one of the appropriate cuts given in section 4. 3.3 Length The nominal length shall be one of those given in the appropriate
18、 of tables 2-21, as specified by the purchaser. 3.4 Cross-sectional dimensions The cross-sectional dimensions of files and rasps shall conform to the appropriate values given in the relevant of tables 2-21. 3.5 Tolerances on spacing of teeth 3.5.1 File surfaces The number of teeth per 25 mm shall co
19、nform to the appropriate range given in the relevant of tables 5-18 and 21. SANS 1172:2008 Edition 1.4 5 3.5.2 Rasp surfaces a) Tolerance on the number of teeth per row: 1 b) Tolerance on the number of rows per 25 mm: 1 3.6 Heat treatment All files and rasps shall have been heat-treated to a uniform
20、 hardness. 3.7 Finish Files and rasps shall be true to shape and free from rust and other defects. The teeth shall be uniform and regular over the whole of the cut surface and uncut edges shall be smooth and free from burrs. 3.8 Performance When tested in accordance with 7.2, files and rasps shall c
21、ut the provers without any sign of slip, blunting, or stripping of teeth. 4 Specific requirements 4.1 Machinists files 4.1.1 Flat files (see table 2) Flat files shall have a rectangular cross-section that is uniform for approximately two-thirds of the length and then tapers in width to a blunt point
22、. The sides shall be double-cut, and the edges single-cut. The type of cut shall be bastard, second, or smooth. 4.1.2 Hand files (see table 3) Hand files shall have a rectangular cross-section that is uniform for the whole of its cut length. Amdt 3 The sides shall be double-cut, one edge single-cut
23、and the other edge uncut. The type of cut shall be bastard, second, or smooth. 4.1.3 Half round files (see table 4) Half round files shall have a semi-circular cross-section that is uniform for approximately two-thirds of the length and then tapers in width and thickness to a blunt point. The flat s
24、ide shall be double-cut and the convex side double-cut in the case of a bastard cut, and single-cut in the cases of second and smooth cuts. The type of cut shall be bastard, second, or smooth. 4.1.4 Round files (see table 5) Round files shall have a circular cross-section that is uniform for approxi
25、mately two-thirds of the length and then tapers to a blunt point. Files of length exceeding 150 mm that are bastard cut shall be double-cut. Other files shall be single-cut. The type of cut shall be bastard, second, or smooth. SANS 1172:2008 Edition 1.4 6 4.1.5 Square files (see table 6) Square file
26、s shall have a square cross-section that is uniform for approximately two-thirds of the length and then tapers to a blunt point. All the sides shall be double-cut. The type of cut shall be bastard, second, or smooth. 4.1.6 Three-square files (see table 7) Three-square files shall have a triangular (
27、equilateral) cross-section that is uniform for approximately two-thirds of the length and then tapers to a blunt point. The sides shall be double-cut. The type of cut shall be bastard, second, or smooth. NOTE Unlike taper saw files the corners are not cut. 4.1.7 Warding files (see table 8) Warding f
28、iles shall have rectangular cross-section of uniform thickness and that tapers in width to a blunt point. The sides shall be double-cut and the edges single-cut. The type of cut shall be bastard, second, or smooth. 4.1.8 Knife files (see table 9) Knife files shall have a wedge-shaped cross-section.
29、The thinner edge shall be straight and of uniform thickness over the full length of the file and shall be rounded. The thicker edge shall be of uniform thickness and parallel to the thinner edge for approximately two-thirds of the length and shall then so approach it as to produce a blunt point. The
30、 sides shall be double-cut and both edges single-cut. The type of cut shall be bastard, second, or smooth. 4.2 Saw files 4.2.1 Taper saw files (see table 10) A taper saw file shall be one of three varieties, designated as regular, slim, and extra-slim, as specified by the purchaser. Taper saw files
31、shall have a triangular (equilateral) cross-section that is uniform for approximately two-thirds of the length and then tapers to a blunt point. The sides and corners shall be single-cut but uncut adjacent to the point for an acceptable distance. The type of cut shall be second cut. 4.2.2 Band saw t
32、aper files (see table 11) Band saw taper files shall have a triangular (equilateral) cross-section that is uniform for approximately two-thirds of the length and then tapers to a blunt point. The corners shall be rounded. The sides and corners shall be single-cut. The type of cut shall be second cut
33、. SANS 1172:2008 Edition 1.4 7 4.2.3 Chain saw files (see table 12) Chain saw files shall have a uniform circular cross-section. The files shall be double-cut but uncut adjacent to the point for an acceptable distance. The type of cut shall be second cut. 4.2.4 Cant saw files (see table 13) Cant saw
34、 files shall have a uniform triangular (isosceles) cross-section, with an obtuse apex angle and truncated base angles. The sides and corners shall be single-cut. The type of cut shall be second cut. 4.2.5 Cross-cut saw files (see table 14) Cross-cut saw files shall have a uniform wedge-shaped cross-
35、section with a rounded back and edge. The sides, edge, and back shall be single-cut. The type of cut shall be second cut. 4.2.6 Double-end saw files (see table 15) Double-end saw files shall have a triangular (equilateral) cross-section that is uniform over the middle two-thirds (approximately) of t
36、he length and then tapers to a blunt point at each end. The sides and corners shall be single-cut but uncut adjacent to each point for an acceptable distance. The type of cut shall be second cut. 4.3 Miscellaneous files 4.3.1 Blunt heavy mill files (see table 16) Blunt heavy mill files shall have a
37、uniform rectangular cross-section. The files shall have one round and one square edge, or two round edges, as specified by the purchaser. The sides and edges shall be single-cut but uncut adjacent to the point. The type of cut shall be bastard, second, or smooth. 4.3.2 Mill files (see table 17) Mill
38、 files shall have a rectangular cross-section that is uniform throughout or is uniform for approximately two-thirds of the length and then tapers in width to a blunt point, as specified by the purchaser. The files shall have two square edges, one round and one square edge, or two round edges, as spe
39、cified by the purchaser. The sides and edges shall be single-cut. The type of cut shall be bastard, second, or smooth. 4.3.3 Reaper files (see table 17A) Reaper files shall have an integral handle, and a rectangular cross-section that is uniform throughout its length. The edges shall be square to th
40、e sides, and shall be uncut. The sides shall be single cut. Amdt 1 SANS 1172:2008 Edition 1.4 8 4.4 Rasps 4.4.1 Shoe rasps (see table 18) Shoe rasps shall have a uniform semi-circular cross-section with truncated corners and rounded blunt ends. The flat side shall be double file-cut for half of its
41、length and rasp-punched for the remainder. The convex side shall be double file-cut for half of its length and rasp-punched for the remainder, and the truncated corners shall be uncut. 4.4.2 Half round wood rasps (see table 19) Half round wood rasps shall have a semi-circular cross-section that is u
42、niform for approximately two-thirds of the length and then tapers in width and thickness to a blunt point. The sides shall be rasp-punched and the corners single file-cut. 4.4.3 Cabinet rasps (see table 20) Cabinet rasps shall have a semi-circular cross-section that is uniform for approximately two-
43、thirds of the length and then tapers in width and thickness to a blunt point. The sides shall be rasp-punched and the corners single file-cut. 4.4.4 Horse rasps (see table 21) A horse rasp shall be one of two varieties, designated as regular (not tanged) and tanged, as specified by the purchaser. Ho
44、rse rasps shall have a uniform rectangular cross-section. One side shall be rasp-punched and the other side double file-cut. The edges shall be single file-cut. 5 Packing and marking 5.1 Packing Each file or rasp shall be treated with a suitable protective coating that will not interfere with the cu
45、tting action. Only files or rasps of the same type, length, and type of cut, when relevant, shall be packed together in a container and in such a manner as to prevent damage to the teeth during normal handling and transport. 5.2 Marking 5.2.1 Files and rasps Each file or rasp shall be legibly and pe
46、rmanently marked with the manufacturers name or trade mark or both. 5.2.2 Containers Each container shall bear the following information in legible and indelible markings: a) manufacturers name or trade name or both; b) type; SANS 1172:2008 Edition 1.4 9 c) the length; d) when relevant, the type of
47、cut; e) the quantity. 6 Sampling and compliance with the specification1)6.1 Sampling The following sampling procedures shall be applied in determining whether a lot complies with the relevant requirements of the specification. The samples so taken shall be deemed to represent a lot. 6.1.1 Sample for
48、 inspection From the lot take at random the number of files or rasps shown in column 2 of table 1 relative to the appropriate lot size shown in column 1. Table 1 Sample sizes 1 2 3 Lot size Sample for inspection Sample for testing files or rasps files or rasps files or rasps 10 101 251 100 250 500 1
49、0 15 20 2 3 4 6.1.2 Sample for testing From the sample taken in accordance with 6.1.1 take at random the number of files or rasps shown in column 3 of table 1 relative to the appropriate lot size shown in column 1. 6.2 Compliance with the specification The lot shall be deemed to comply with the requirements of the specification if after inspection and testing of the samples taken in accordance with 6.1 no defective is found. 7 Inspection and methods of test 7.1 Inspection Examine the sample taken in accordance with 6.1.1 for compliance with those requirements of the specifi
