Standard No.:	GA/T 73-1994
Chinese Name:	机械防盗锁
English Name:
Professional Classification:	A91 Guard and alarm system
Professional Classification:	GA Professional Standard - Security
Issued by:
Issued on:	1994-03-11
Implemented on:	1994-07-01
Status:	ABOLISHED
Replace By:	GA/T73-2015 Burglary-resistant mechanical locks
Replace By Date:	2015-03-01
Language:	English
File Format:	PDF
Word Count:	7500 words
Price(USD):	225 (USD)
Delivery:	via email in 1-3 business day

1 Subject Content and Application Scope

This standard specifies the technical requirements and test methods of thief resistant mechanical locks.
This standard is applicable to the thief resistant locks used for anti-theft security doors opened by key and the mechanical coded locks used for burglary resistant safes.

2 Normative References

GB 10409 Burglary Resistant Safes
GA 25 General Specification for Burglary Resistant Safety Door

3 Terms

3.1 Thief resistant mechanical locks
It refers to the lock opened by latch through mechanical transmission and possessing functions of drilling resistant, sawing resistant, prying resistant, pulling resistant, striking resistant and opening locks resistant for technology; the lock barrel is non-single row pin structure.
3.2 Drilling resistant
The key parts of tapered end and lock body are able to resist the drilling of electric portable drill and cannot be poked by poking instrument, such as steel wire.
3.3 Prying resistant
When the lock is under locking position, the lock latch case (plate) and bolt (pin) are able to resist the squeezing, breaking and prying of crowbar.
3.4 Sawing resistant
It refers to the ability the under the sawing of common hand hacksaw, the main bolt (pin) is still functional.
3.5 Pulling resistant
In the normal installation conditions, it is able to prevent the tapered end, code dial and rotating spindle being pulled out of the lock by drawing tool.
3.6 Striking resistant
In the normal installation condition, the lock is able to prevent the tapered end, lock body and transmission mechanism of lock bar being punched out by stamping tools.
3.7 Opening locks resistant for technology
It is able to resist the operating practices of experienced technicians by adopting special tools to open the lock.
3.8 Deformed pin
It refers to a kind of special form pin installed in the pin hole to prevent the lock being opened by foreign matter technology.
3.9 Security level
It refers to the level specified according to the different provisions of technical parameter and degree of break proof ability of thief resistant mechanical locks.
3.10 Interval change
Within the range of specified theoretical coded number and under the premise of specified differential value, it refers to the number of mutual different levels between any two locks.
3.11 Coded number
It refers to the quantity of different keys or the class number of different combinations of passwords.