The fat volume (%) and refractive index, n, for some commercial milk samples.

Fat volume (%)	n (this work)	n (published work)	Difference	Ref.
0	1.345208938	1.3469	−0.0016926	10
0.05	1.346002802	1.349	−0.0029986	9
0.4	1.347454325	1.34846	−0.0010069	8
1.5	1.349557112	1.3483	0.0012563	10
1.6	1.349699713	1.35012	−0.0004211	8
3.3	1.351658322	1.35123	0.0004278	8
3.5	1.351850883	1.3525	−0.0006496	10
4.3	1.352570932	1.347	0.00055706	9
5.2	1.353304797	1.3468	0.0065046	11
6.6	1.354329744	1.346	0.0083297	9
10	1.356435874	1.35692	−0.0004838	8
8.1	1.355313181	1.3563	−0.0009867	11
33.3	1.365696174	1.36541	0.0002880	8