When a toilet is flushed, the wastewater flows into a septic tank or sewage system and from there to a sewage treatment plant. A flush toilet may be colloquially called a lavatory, water closet (abbreviated W.C.), loo, comfort room (abbreviated C.R.), and many other names.
N verify (what is: Y/N?) Infobox references Polyvinylidene fluoride, or polyvinylidene difluoride (PVDF) is a highly non-reactive and pure thermoplastic fluoropolymer produced by the polymerization of vinylidene difluoride. PVDF a synthetic resin produced by the polymerization of vinylidene fluoride (CH 2 =CF 2). A tough plastic that is resistant to flame, electricity, and attack by most chemicals,... Sigma-Aldrich offers Aldrich-427152, Poly(vinylidene fluoride) for your research needs.
I would strongly recommend all of you to use as a mounting medium (microscopic slide or drop for larger pieces after dissection) dimethyl hydantoin formaldehyde resin (DMHF or DMHFR). DMHF is a syntehtic resin, you don't need to dehydrate, it has the same refraction index as glass and never reddens. did like using low concentrations of formalin as a mounting medium (for nematodes and worm like things) when I could get my hands on nail-polish that actually would seal the coverslips. This is not the case anymore, there is still some type of plumbers sealant (red smelly stuff) that works ok.