CALCULATIONS 5.1 Calculate the percentage of each or a combination of deleterious materials: PDW ï½ï´100 Where: P = Percentage of deleterious matter by weight D = Weight of deleterious substances, g W = Weight of total sample (retained on No. 4 [4.75 mm] or No. 8 [2.36 mm]), g.est the material retained on the No. 8 (2.36 mm) sieve for compliance with the specification requirements if the sample contains an aggregate that predominately passes the No. 4 (4.75 mm) sieve. 8.7 Remove any material other than coated particles of aggregate that will slake down during the test.
OcuviteÂ® is a supplement made from natural ingredients that is thought to help with macular degeneration caused by the aging process, as well as some degenerative eye diseases.
The very high viscocity of hypromellose makes it ideally suited to use in ocular preparations which are designed to address dry eye. Some artificial tears contain hypromellose, and the polymer is also used in some types of eye surgeries to keep the eye lubricated. As a lubricant, it can soothe the eye in case of irritation and also create a protective barrier to protect the eye from additional irritation.