Xtol is mostly Vitamin C and water. Just wipe everything down several times and use a standard cleaning product. Nothing I would be worried about. The cleaning products are more nasty than Xtol.
Not exactly. From Kodak MSDS:
2. COMPOSITION/INFORMATION ON INGREDIENTS
Weight % - Component - (CAS Registry No.) (ELINCS/EINECS No.) - Classification
Part A:
90-95 Sodium sulphite (007757-83-7) (231-821-4)
5-10 Sodium metaborate, tetrahydrate (010555-76-7)
1-5 Diethylenetriaminepentaacetic acid pentasodium salt (000140-01-2)
(205-391-3) - Xi; R36/38*
< 1 4-hydroxymethyl-4-methyl-1-phenyl-3-pyrazolidinone (013047-13-7)
(235-920-3) - Xn; R48/22 N; R51/53*
Part B:
70-75 Sodium sulphite (007757-83-7) (231-821-4)
15-20 Sodium isoascorbate (006381-77-7) (228-973-9)
5-10 Sodium metabisulphite (007681-57-4) (231-673-0) - Xn; R22-31-37-41*
Working solution (Approximate dilution - 50 g A + 53.55 g B to make 1 litre):
85-95 Water (007732-18-5)
5-10 Sodium sulphite (007757-83-7)
1-5 Sodium isoascorbate (006381-77-7)
< 1 Sodium metaborate, tetrahydrate (010555-76-7)
< 1 Diethylenetriaminepentaacetic acid pentasodium salt (000140-01-2)
< 0.05 4-hydroxymethyl-4-methyl-1-phenyl-3-pyrazolidinone (013047-13-7)
* Substance not listed in EC Annex
As you say, probably not as nasty as whatever cleaner you use, but equally, some way from 'vitamin C and water'.