EN
ZHTest Method: SATRA TM338
Salzman test - detection of contamination by oxides of nitrogen
December 1992
SCOPE
This test method is intended to determine whether a material has been exposed to the oxides of nitrogen, a common cause of discolouration. The method is applicable to all materials.
PRINCIPLE
A square test specimen is immersed in a Salzman solution for up to 24 hours. At predetermined times the colour of the solution is examined. If free nitrogen groups are present on the surface of the specimen as a result of exposure to oxides of nitrogen the solution develops a pink/red colour.
REFERENCES
This Test Method does not reference any additional Standards or Test Methods.
HISTORY
First issued December 1992.
AVAILABILITY
This test method is available to members and non-members.
PRICE (ex. VAT)
This price is for a printed copy of the Test Method.
- Members: £75
- Non-members: £215