Abstract: A method for detecting the type of replaceable piston-cylinder unit mounted in pipetting or dosing apparatus with the help of a code marking on the piston rod head, so as to eliminate the influence of the chain of tolerances piston rod head/piston rod/piston/cylinder bottom/cylinder flange so that, to a certain extent, larger tolerances may be tolerated for the parts of the piston-cylinder units involves generating relative movement between the piston rod head and a detection device, and thereby detecting a reference point on the piston head with the detection device from laterally of the piston head, and generating relative movement between the piston rod head and the detection device and thereby detecting a code marking of the piston rod head in order to determine the type of piston-cylinder unit mounted.

Abstract: The present invention relates to novel substituted pyridines/pyrimidines of the formula I where A is CH or N; X is NH, O or S(O)q where q is 0, 1 or 2; Y1, Y2 and Y3 independently of one another are a group of the formula —O—, —CO—, —CNR6—, —S(O)r— or —N(O)lR6— where l is 0 or 1 and where r is 0, 1 or 2, or a group of the formula CR7R8, or Y1 or Y3 replace a direct bond; Z is a direct bond, NR9, O, S(O)s where s is 0, 1 or 2, OSO2, SO2O, NR10SO2, SO2NR11, SiR12R13 or  where U is a direct bond, NR14 or O; W is oxygen or sulfur; V is a direct bond, NR15 or oxygen; m and n and 0, 1, 2, 3 or 4; where the radicals R1 to R15 have the meaning given in the description, to processes for their preparation, to their use as pesticides, fungicides and ovicides and to their use as veterinary medicaments.

Abstract: The present invention relates to novel substituted pyridines/pyrimidines of the formula I where A is CH or N; X is NH, oxygen or S(O)q where q is 0, 1 or 2; Y is a direct bond or CH2; Z is oxygen, NR7 or S(O)m is 0, 1 or 2, and the radicals R1, R2, R3, R4, R5, R6 and R7 are as defined in the description, to processes for their preparation, and to their use as pesticides, fungicides, ovicides or as veterinary medicaments.

Abstract: Compounds of formula I where R1 is hydrogen, chlorine, fluorine or methyl, R2 and R3, which may be the same or different from each other, are hydrogen, halogen, cyano, (C1-C4)-alkyl, vinyl, ethynyl, (C1-C4)-alkoxy, (C1-C4)-alkoxy-(C1-C4)-alkyl, fluorovinyl or fluoroethyl, or R2 and R3 together with the linking carbon atoms form a benzo ring, and R4 is (C2-C4)-alkyl, (C2-C4)-alkenyl or (C3-C4)-alkinyl, each of which is substituted by at least two fluorine atoms and optionally substituted by C1-4-alkoxy, cyanomethoxy, (C3-C4)-alkenyloxy or (C3-C4)-alkinyloxy, are useful as pesticides, especially against insects, acarids and fungi. The invention includes a novel process for fluorinating certain pyrimidines.

Abstract: Compounds of formula I, N-oxides or salts, thereof ##STR1## in which q is 0, 1 or 2A is CH and D is N.sup.+ R.times.1/n Q.sup.n- or A is N and D is N.sup.+ R.times.1/n Q.sup.n- or A is CH or N and D is Nor A is N.sup.+ R.times.1/n Q.sup.n- and D is N, R is CR.sup.6 R.sup.7 D.sup.a R.sup.8,Q.sup.n- is an inorganic or organic anion, n being 1, 2, 3 or 4;X is NH, O or S(O).sub.q, (q is 0, 1 or 2); and the R groups have various meanings as defined in the claims are useful pesticidal, especially insecticidal activity.

Abstract: Compounds of the formula I ##STR1## in which A is CH and D is N.sup.+ R, A is nitrogen and D is N.sup.+ R or A is N.sup.+ R and D is nitrogen, R is --CR.sup.4 R.sup.5 --E--R.sup.6, Q.sup.n- is an inorganic or organic anion, n is 1, 2, 3 or 4 and R.sup.1 -R.sup.6, E, X, Y and Z are each as defined in the description, processes for their preparation and their use as pesticides.