A relative density of 1 is equivalent to a density of 1g per cm
The following table shows the relative density of water and steel compared to materials commonly used in the manufacture of fibe ropes.

The table below show a typical melting or decopositon temperature of some common rope making.

This table shows the residual of synthetic fibres after chemical exposure under specific conditions

Melting Point
Chemical	Conc WW%	Temp °C	Time Hours	Nylon	Polyester	Polypro- pylene	Aramid	HMPE
Acids
Hydrochloric	34	20	100	0	90	100	95	100
Nitric	66	20	100	0	70	100	95	95
Sulphuric	96	20	100	0	100	100	40	90
Formic	90	20	100	0	95	100	90	100
Acetic	100	20	10	85	95	100	100	100
Alkalis
Caustic Soda	40	20	100	50	0	90	90	100
Caustic Soda	20	70	150	100	0	100	85	90
Caustic potash	40	20	100	90	0	90	90	100
Solvents
Trychloroe-thylene	100	30	150	100	95	80	100	100
Carbon Tretrachloride	100	20	150	100	100	100	98	100
Benzene	100	70	150	100	100	100	98	95
Metacresol	100	100	4	0	0	100	80	100
Oxidising Agent
Hydrogen Peroxide	10	20	100	0	100	90	95	100