Blotter design

LSD is almost always taken by mouth. The white, odorless, slightly bitter-tasting crystalline powder is usually dissolved into a liquid form and soaked into blotter paper. The paper is then cut into quarter-inch-squaresized individual doses, called tabs, trips, hits, or doses. The paper is usually decorated with specific designs, such as dolphins, strawberries, or mushrooms, which help identify the manufacturer. Such designs also help to... 

Attraction also occurs between the paper of the smelling blotter and the perfume materials. The attraction forces between the perfume and the solid support upon which it has been deposited are called forces of adhesion, and the degree of adhesion is often designated by the term substantivity. Adhesion plays a major role in the persistence of perfume on the skin, of the perfume from shampoos or conditioners on the hair, of detergent and fabric softener perfumes on textile fibers. 

The triangle test is a measure of odor discrimination. The candidate is presented, in random order, with three blotters, of which two are identical and the third is slightly different. The task is to indicate the odd blotter. This test can be designed to range from easy to very difficult. It is statistically most powerful if the difference between the paired blotters is such that the odd one is correctly identified by about 50% of the candidates. 

Wetting Solution Blotter° Color Change6 Designation... 

AATCC Test Method 35 -2000 " is designed to simulate a rain event. A special apparatus is used to hold the 20 x 20 cm fabric sample in a vertical position backed by a weighed piece of blotter paper. The fabric face is sprayed with water under constant hydrostatic pressure for 5 min and the blotter paper reweighed. The increase in weight of the backing paper is a measure of the resistance of the fabric to penetration by the simulated rain. 

LSD on blotter paper carrier is the most common form. The blotter paper is perforated in squares and printed with symbols, cartoon characters and designs, A predetermined amount of LSD is dissolved into a solvent and blotter paper is soaked to absorb a titrated amount of LSD. It is the easiest form of LSD for transportation, but will break down (if not protected) on exposure to heat, light and air. 

Blotter and Batty (1993) Thermal and Mechanical Design of Cryogenic Cooling Systems by P. T. Blotter and J. C. Batty Chapter 6 in Electro-Optical Components, which is Volume 3 of the Infrared and Electro-Optical Handbook, The Society of Photo-Optical Instrumentation Engineers (SPIE). 

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