1 Scope
This standard specifies the test methods of corrosion resistance of medical instruments and dental hand instruments of martensitic and austenitic stainless steel.
This standard is applicable to medical instruments of martensitic stainless steel (e.g. scissors, pliers, tweezers etc.) and medical instruments of austenitic stainless steel (e.g. hypodermic needle, acupuncture needle, intrauterine device of stainless steel and stainless steel wire for teeth) and also applicable to the materials for manufacturing medical instruments of austenitic stainless steel.
This standard is not applicable to surgical implants of martensitic and austenitic stainless steel.
2 Normative References
The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments (excluding corrections), or revisions, of any of these publications do not apply to this standard. However parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies.
GB/T 6682 Water for Analytical Laboratory Use - Specification and Test Methods(GB/T 6682-1992, eqv ISO 3639: 1987)
ISO 7151: 1988 Surgical Instruments; Non-cutting, Articulated Instruments; General Requirements and Test Methods
3 Classification
The test methods of this standard include methods for boiling test, sodium chloride solution test, citric acid solution, copper sulfate test, autoclave test and thermal test.
The methods for boiling test, copper sulfate test, autoclave test and thermal test in this standard are applicable to medical instruments of martensitic stainless steel; all test methods of this standard are applicable to medical instruments of austenitic stainless steel.
Foreword i
1 Scope
2 Normative References
3 Classification
4 Preparation
5 Method for Boiling Water Test
6 Method for Sodium Chloride Solution Test
7 Method for Citric Acid Solution Test
8 Method for Copper Sulfate Test
9 Method for Autoclave Test
10 Method for Thermal Test
