Middle English saun; from Old French sanz (Fr sans) ; from Classical Latin sine, without: form influenced, influence by Classical Latin absentia, in the absence of, ablative: see absence.
Temperature rating is from -20Â°F to +300Â°F. Color is gray (black) or red and may be used on bleached paper. lines. Fluorocarbon (VITON) is not suitable for steam or hot water service. BUNA-N (HYCAR or Nitrile) - Buna-N is a general purpose polymer which has good resistance to oil, water, solvents and. hydraulic fluids. It also displays good compression, abrasion resistance, and tensile strength.
4-Aminobenzoic acid (also known as para-aminobenzoic acid or PABA because the number 4 carbon in the benzene ring is also known as the para position) is an organic compound with the formula H 2 NC 6 H 4 CO 2 H. PABA, a white-grey crystalline substance, is only slightly soluble in water.n the past, PABA was widely used in sunscreens as a UV filter. It is a UVB absorber, meaning it can absorb wavelengths between 290 and 320 nm. Patented in 1943, PABA was one of the first active ingredients to be used in sunscreen. The first in vivo studies on mice showed that PABA reduced UV damage.