Table 3.

Mutagenicity in the Ames fluctuation test in four different S. typhimurium strains. The pure substances and (assumed) degradation products were analysed as well as the electrolyte without additives and the electrolytes with 2 wt% of the respective additives at three different ageing stages. Colour and symbol show evidently mutagenic samples (+), samples that were not mutagenic in the studied concentration range (-) and samples that were classified as not mutagenic although individual concentrations exceeded the baseline at low levels (o)

	Pure additives				Pristine Electrolyte				Electrolyte after 2 cycles				Electrolyte after 200 cycles				Degradation products
	TA100	TA1535	TA98	TA15371	TA100	TA1535	TA98	TA97a	TA100	TA1535	TA98	TA97a	TA100	TA1535	TA98	TA97a	TA100	TA1535	TA98	TA97a
LP572	x	x	x	x	−	−	-	o	-	-	-	-	-	o	-	-	x	x	x	x
PS	+	+	-	-	+	+	-	-	+	+	-	-	+	+	-	+	-	-	-	-
PES	+	+	-	-	+	+	+	+	+	+	-	o	-	o	-	-	-	-	-	-
DTD	-	-	-	-	+	+	-	-	+	+	-	-	+	+	-	-	-	-	-	-

¹ TA1537 replaced TA97a due to availability of bacteria

² LP57 line: not applicable (x)