PS type routine tests

To eharaeterize the quality of test-system the notion relative width of UR region was suggested for the first time. The less the value of UR region relative width is the test-system the more tolerant to the random interferenees and better in analytieal sense. In the work the dependenee of LDC on the reaetion type, observation eondition of test-means staining, the earrier material type, UR region relative width and the number of observations was analysed.  [c.307]

Just to finish this train of thought, the next logical step in the argument would be to retain all integrals of the type  [c.151]

In a wide-mouthed test-tube ( boiling tube ) place 5 g. of phenol, 15 ml. of 40 per cent, formaldehyde solution and 3 ml. of concentrated ammonia solution (sp. gr. 0-88). Warm the mixtme with a small flame until it becomes opaque. Cool, discard the aqueous layer, but retain the viscous material in the tube. Heat the latter in a water bath at 60° for 30 minutes and then heat the pasty mass in an air oven at 75° for 4-6 hours. A hard sohd resin is produced.  [c.1023]

Place about 0 1 g. of the powdered compound in a small dry test-tube, add sufficient of the reagent to give a column about 1 cm. high, and then shake the closed tube until the contents are well mixed. Now add more reagent, without mixing with the material already in the tube, imtil the total he ht is about 3 cm. If the compound is a hquid, introduce 2-3 drops into a small dry test-tube, add sufficient of the mixture to form a column about 1 cm. long, and allow the hquid to soak weU into the reagent. Then add more reagent, without mixing, until a total height of about 3 cm. is secured. Hold the tube horizontaUy (use tongs or a special test tube holder) and, by means of a amall flame, heat a 1 cm. length of the mixture gently near the open end. Gradually increase the size of the flame until the mixture is red hot at the end. Extend the heating gradually and cautiously towards the closed end of the tube until the whole of the mixture is red hot. (The extension of the heating towards the closed end of the tube must be carried out with great care, otherwise the mixture may be projected from the tube if the mixture tends to be pushed out of the tube by the evolution of gas, stop the heating momen tarily and rotate the tube while still in a horizontal position in order to redistribute the contents.) Finally heat the tube to redness in a vertical position for a minute or two and, while the end of the tube is still red hot, plunge the tube in about 10 ml. of water in a porcelain dish. Boil the contents of the dish gently for 1-2 minutes and filter. (If the filtrate is not colourless, repeat the whole process.) Retain the residue in the basin for the sulphur test. Divide the clear filtrate into two portions.  [c.1044]

The algorithm for estimating the LDC and LDM for teehniques of test analysis with visual indieation is suggested. It ineludes the steps to eheek the suffieieney of experimental material [1]. The hypothesis ehoiee about the type of frequeney distribution in unreliable reaetion (UR) region is based on the ealeulation of eriteria eomplex Kolmogorov-Smirnov eriterion,  [c.307]

See pages that mention the term PS type routine tests : [c.327]    [c.327]   
Industrial power engineering and applications handbook (2001) -- [ c.0 ]