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 978-0-626-20161-6 SANS 4:2008Edition 3.3Any reference to SABS 4 is deemedto be a reference to this standard(Government Notice No. 1373 of 8 November
4、 2002)SOUTH AFRICAN NATIONAL STANDARD Locks, latches, and associated furniture for doors (Domestic Type) 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 Afr
5、ica SANS 4:2008 Edition 3.3 Table of changes Change No. Date Scope Amdt 1 1980 Amended to add requirements for tubular mortice latches as well as an alternative overall length for the fore-end of the mortice locks. Amdt 2 1991 Amended to change a definition and to include a requirement for hot-dip g
6、alvanizing. Amdt 3 2008 Amended to change the designation of SABS standards to SANS standards, to remove reference to the standardization mark and to update the definition of “acceptable” and the referenced standards. Foreword This South African standard was approved by National Committee StanSA SC
7、5120.14C, Security Door locks, in accordance with procedures of Standards South Africa, in compliance with annex 3 of the WTO/TBT agreement. This document was published May 2008. This document supersedes SABS 4:1979 (edition 3). A vertical line in the margin shows where the text has been technically
8、 modified by amendment Nos 1, 2 and 3. SANS 4:2008 Edition 3.3 1 Contents Page Foreword 1 Scope 3 2 Definitions . 3 3 General requirements 5 4 Marking . 9 5 Sampling and compliance with the specification 9 6 Inspection and methods of test 10 6.1 Inspection . 10 6.2 Methods of test . 10 Figures 1-5 1
9、3-17 Appendix A Applicable standards . 18 Appendix B Notes to purchasers . 18 SANS 4:2008 Edition 3.3 2 This page is intentionally left blank SANS 4:2008 Edition 3.3 3 Locks, latches, and associated furniture for doors (Domestic Type) 1 Scope 1.1 This specification covers the requirements for the ma
10、terials, essential dimensions, finish, and performance for mortice locks and latches, rim locks and latches, and the associated lock and latch furniture. NOTE a) The titles of standards referred to by number in the specification are given in appendix A. b) Requirements that must be specified by the
11、purchaser are listed in appendix B. c) Assessment of compliance with the requirements of 3.2.1 requires special agreement between supplier and purchaser. Amdt 3 2 Definitions 2.1 For the purposes of this specification the following definitions shall apply: acceptable acceptable to the authority admi
12、nistering this standard, or to the parties concluding the purchase contract, as relevant Amdt 2; amdt 3 cylinder assembly a separate key-operated unit, of the pin-tumbler type, that is fitted to and operated in conjunction with the locking mechanism of a lock/latch cylinder mortice lock a mortice lo
13、ck for fitting into a mortice cut into the locking edge of a door, and operated by a single- or double-sided cylinder mechanism. (Single-sided versions may, when relevant, have a thumb turn or knob fitted to the non-keyed side of the lock.) cylinder rim night latch a latch for mounting on the inner
14、face of a door and operated from the outside of the door by a cylinder assembly and from the inside by an integral knob or thumb turn or cylinder assembly. (A rim latch may have a secondary button or lever that enables the spring bolt to be retained in either the open or the locked position.) NOTE A
15、 spring bolt is also known as a latch bolt. SANS 4:2008 Edition 3.3 4 deadlock a lock in which a dead-bolt mechanism is both opened and locked by means of a key, there being no spring action involved in the movement of the dead bolt. (See “Mortice bathroom/toilet lock“.) defective a unit that fails,
16、 in one or more respects, to comply with the relevant requirements of the specification follower a spindle-operated device that operates a spring-bolt mechanism or a bathroom/toilet lock dead-bolt mechanism fore-end a) single a plate permanently attached to the front of a lock/ latch, and through wh
17、ich the bolt(s) operate b) double two plates, one permanently attached to the front of a lock/latch and the other superimposed on the first plate and attached by screws to the front of a lock,/latch. The bolt(s) operate through both plates furniture a generic term for all or any of the following ite
18、ms supplied separately, in sets, or as part of a lock/latch set: Lever handles, knobs, escutcheons, spindles, screws, and any other ancillary components latch a spring-loaded bolt mechanism (in a case) operated from one or both sides by a lever handle, knob, thumb turn, key, cylinder mechanism, or a
19、ny combination of these devices lever handle a lever in the form of handle running in a rose or plate, and that operates a spring-bolt mechanism by means of a spindle lot not less than 10 and not more than 1 200 units, of the same size, type, and finishes, from one manufacturer, and submitted at any
20、 one time for inspection and testing mortice bathroom/toilet lock a lock for fitting into a mortice cut into the locking edge of a door and having a spring-bolt mechanism operated from both sides by lever handles and a dead-bolt mechanism operated by a knob or thumb turn from the inner side only. (P
21、rovision is often made for a cipher or colour-coded “engaged“ indicator that is operated when the dead bolt is locked.) mortice deadlock a deadlock for fitting into a mortice cut into the locking edge of a door mortice latch a latch for fitting into a mortice cut into the locking edge of a door mort
22、ice lock a lock for fitting into a mortice cut into the locking edge of a door and having both a spring-bolt mechanism and a key-operated dead-bolt mechanism NOTE A mortice lock is also known as a “two-bolt mortice lock“ or “sash lock“. SANS 4:2008 Edition 3.3 5 paracentric descriptive of the sectio
23、n of the keyhole of a cylinder lock mechanism that is such that it does not admit a flat strip of metal. (It is also descriptive of the section of the corresponding key blade) rim lock a lock for fitting to the inner face of a door and having a spring-bolt mechanism and a key-operated dead-bolt mech
24、anism staple a metal box for fitting to the inner face of a door frame and having an opening or openings in which the bolt(s) of a rim lock/latch engage when a door is in the closed position striking plate a plate for fitting to the locking edge of a door frame and having an opening or openings in w
25、hich the bolt(s) of a mortice lock/latch engage unit a lock or a latch, or a lock set, a latch set, or a furniture set (see 3.1.2) 3 General requirements 3.1 Type and sets 3.1.1 Lock and latch types Locks and latches shall be of one of the following types and shall be right- or left-handed, as speci
26、fied (in both cases) by the purchaser: a) cylinder mortice lock (single- or double-cylinder); b) cylinder rim night latch; c) mortice bathroom/toilet lock; d) mortice deadlock; e) mortice lock; f) mortice latch; g) rim lock; h) rim latch. 3.1.2 Sets A lock set, latch set, or furniture set shall be o
27、f one of the following types, as specified by the purchaser: a) A lock set. A lock of the relevant type (see 3.1.1) complete with all appropriate furniture and, when relevant, a key or keys. b) A latch set. A latch of the relevant type (see 3.1.1) complete with all appropriate furniture and, when re
28、levant, a key or keys. c) Furniture set. Furniture appropriate to the relevant type of lock/latch (see 3.1.1) and for both sides of a door, with spindle and appropriate screws. SANS 4:2008 Edition 3.3 6 3.1.3 Design and finish The design of furniture and the decorative finishes on fore-ends and cyli
29、nder assemblies shall be as specified by the purchaser. 3.1.4 Lock differs a) Lever locks/latches. Lever type mortice locks/latches shall have at least the appropriate of the following number of different arrangements of levers or key sections (bullet warding) or both: No. of levers or key sections
30、or both in lock/latch No. of differs, min. 2 3 4 5 12 36 48 250 NOTE In no case shall it be possible to unlock a lock/latch with a key of another differ, and in no case shall any differ be repeated in another lever arrangement, e.g. a key in a 2-lever series shall not operate any lock/latch in a 3 -
31、 or 4-lever series. b) Pin-tumbler cylinder mechanisms. There shall be at least 5 pins (not including driver pins) in a pin-tumbler cylinder mechanism. The pins shall be available in at least 5 different lengths and the differing system shall be capable of using all available lengths. The difference
32、 between any 2 lengths of pins shall be at least 0,39 mm, and the pins in an individual cylinder mechanism shall be of at least 2 different lengths. 3.2 Materials 3.2.1 Zinc base alloys Zinc base alloys used in the manufacture of locks, latches, and lock and latch furniture shall comply with the req
33、uirements of SANS 25 for ZA1. 3.2.2 Other materials Other materials used in manufacturing shall be such that units and components made of these materials pass the relevant tests given in section 6. 3.3 Dimensions 3.3.1 General dimensions The general dimensions of the different types of locks and lat
34、ches shall be as shown in the relevant of figures 1-4. 3.3.2 Rebated fore-end The depth of the rebate of a rebated fore-end shall be at least 12,5 mm. SANS 4:2008 Edition 3.3 7 3.3.3 Throw of bolts The throw of a bolt shall be a) in the case of a dead bolt and a spring bolt other than a spring bolt
35、for a tubular mortice latch, at least 10 mm; and b) in the case of a spring bolt for a tubular mortice latch (see figure 2(a), at least 8 mm. Amdt 1 3.3.4 Spindle A spindle shall be of 8 mm square cross-section, with a tolerance of +00,5mm. 3.4 Construction 3.4.1 Keys Keys shall be of the appropriat
36、e of the following types, and the number to be supplied with each lock/latch shall be as specified by the purchaser: a) Cylinder type keys. Cylinder type keys shall consist of a paracentric blade with cuts in the edge that operate the pins of a cylinder assembly and, at the other end of the blade, a
37、 bow for turning the key. b) Lever type keys. Lever type keys shall consist of a round shank with, when relevant (see 3.4.2), a collar, and having on one end a bit containing steps to operate the locking mechanism of a lock/latch and, at the other end, a bow for turning the key. 3.4.2 Keystop and ke
38、y collar When necessary in a double-sided lock/latch, a suitable keystop in the lock/latch or a collar on the key shall be provided to prevent the key bit from being pushed through both keyholes from one side. 3.4.3 Latch spring action In a mortice lock/latch the spring-bolt mechanism shall have one
39、 of the following actions, as specified by the purchaser: a) Plain action, i.e. a latch mechanism so sprung as to be suitable for use with knobs or spring-loaded lever handles. b) Easy action, i.e. a latch mechanism suited for use with unsprung lever handles and so sprung as to permit easy closing o
40、f a door to which it is fitted, but having additional spring-loading so arranged as to ensure the return of the spring bolt follower to the original position after the handle is released. 3.4.4 Striking plate Striking plates shall be one of the following, as specified by the purchaser: a) Plain, i.e
41、. a plate having suitable apertures to accept the bolt(s) of a mortice lock/latch and having holes for fixing screws. b) Box, i.e. a similar plate to (a), but having an additional box-like structure fitted to the rear face to strengthen the plate and protect the bolt(s) of a mortice lock/latch. SANS
42、 4:2008 Edition 3.3 8 3.4.5 Bathroom/toilet lock Mortice bathroom/toilet locks shall be fitted with means for opening from the outside in an emergency. 3.5 Performance requirements 3.5.1 General requirement When submitted to the relevant tests given in 6.2.2-6.2.8 (inclusive) locks, latches, and com
43、ponents of lock sets, latch sets, and furniture sets shall not jam or break, and, after testing, shall still be capable of correctly performing the functions related to the test conducted. 3.5.2 Durability of lever handles When tested in accordance with 6.2.5, a lever handle and its plate or rose sh
44、all, on completion of the test, be intact and shall operate the spring-bolt mechanism without undue difficulty. Minor sagging of the lever handle shall be permitted provided that the correct operation of the spring-bolt mechanism is not affected. 3.5.3 Accuracy of follower When a lock/latch is teste
45、d in accordance with 6.2.9, the follower shall be capable of being turned (in both directions, if the design allows) sufficiently to withdraw the latch bolt completely. On release of the follower, the latch bolt shall be returned to its original position by its own spring pressure. 3.5.4 Strength of
46、 spring-bolt spring The force required to depress a spring bolt to within 1 mm of the fore-end, determined in accordance with 6.2.10, shall be 11,5 2,5 N. 3.5.5 Security of dead bolt When the dead bolt of a lock is tested in accordance with 6.2.11, a) it shall be possible, by turning the key, to thr
47、ow out the dead bolt to the locked position while it supports the test load; b) there shall be no tendency for the dead bolt to drop back into the withdrawn position while the key remains in the locked position; and c) it shall be possible to withdraw the bolt to the unlocked position while it still
48、 supports the test load. 3.6 Finish 3.6.1 General With the exception of springs, all components not made from inherently corrosion-resistant material from corrosion by an acceptable coating that complies with relevant requirements of 3.6.2 or 3.6.3. 3.6.2 Plated coatings a) Zinc plating. The thickne
49、ss of an electroplated coating of zinc on a lock- or latch-case or an inner component shall comply with the requirement of EN 12329. Amdt 3 SANS 4:2008 Edition 3.3 9 b) Nickel plating. The adhesion of a nickel-plated coating on a component made of iron or steel shall comply with the adhesion requirement of SANS 136 and its thickness shall comply, in the case of keys, with the requirement for application grade LOW and, in the cases of other components, with the requirement for application grade MEDIUM of table 1 of SANS 136. Amdt 3 c) Chromium on nickel plating. The adhesion of
