steven
第7楼2013/06/28
EN14362-1:2012中有提到,5#胺和6#胺是不稳定的,会分解成18#胺和19#胺,所以楼主这种情况是正常的。
原文:
a The CAS-numbers 97-56-3 (No. 5) and 99-55-8 (No. 6) are further reduced to CAS-numbers 95-53-4 (No. 18) and
95-80-7 (No. 19).
b Azo colorants that are able to form 4-aminoazobenzene, generate under the condition of this method aniline (CASnumber
62-53-3) and 1,4-phenylenediamine (CAS – number 106-50-3). Due to detection limits, only aniline may be
detected. The presence of these colorants should be tested by EN 14362-3.