Vnosi od 1 do 200. Najdeno od vseh 253 vnosov.
Z.š.Opis 
1Aluminium ICP standard traceable to SRM from NIST Al(NO3)3 in HNO3 2-3% 10000 mg/l Al CertiPUR® 
2Aluminium ICP standard traceable to SRM from NIST Al(NO3)3 in HNO3 2-3% 1000 mg/l Al CertiPUR® 
3Aluminium standard solution traceable to SRM from NIST Al(NO3)3 in HNO3 0.5 mol/l 1000 mg/l Al CertiPUR® 
4Ammonium standard solution traceable to SRM from NIST NH4Cl in H2O 1000 mg/l NH4+ CertiPUR® 
5Anion multi-element standard I ready for use ß (F¯), (PO4³¯), (Br¯) = 1000 mg/l (NaF, KH2PO4, NaBr in H2O) CertiPUR& 
6Anion multi-element standard II ready for use ß(Cl¯),(NO3¯),(SO4¯¯)=1000 mg/l, (NaCl, NaNO3, Na2SO4 in H2O) CertiPUR® 
7Antimony ICP standard traceable to SRM from NIST Sb2O3 in HCl 7% 1000 mg/l Sb CertiPUR® 
8Antimony standard solution traceable to SRM from NIST Sb2O3 in HCl 2 mol/l 1000 mg/l Sb CertiPUR® 
9Arsenic ICP standard traceable to SRM from NIST H3AsO4 in HNO3 2-3% 1000 mg/l As CertiPUR® 
10Arsenic standard solution traceable to SRM from NIST H3AsO4 in HNO3 0.5 mol/l 1000 mg/l As CertiPUR® 
11Barium ICP standard traceable to SRM from NIST Ba(NO3)2 in HNO3 2-3% 1000 mg/l Ba CertiPUR® 
12Barium standard solution traceable to SRM from NIST Ba(NO3)2 in HNO3 0.5 mol/l 1000 mg/l Ba CertiPUR® 
13Benzoic acid volumetric standard, secondary reference material for alkalimetry, traceable to NIST Standard Reference Material ( 
14Beryllium ICP standard traceable to SRM from NIST Be4O(C2H3O2)6 in HNO3 2-3% 1000 mg/l Be CertiPUR® 
15Beryllium standard solution Be4O(C2H3O2)6 in HNO3 0.5 mol/l 1000 mg/l Be CertiPUR® 
16Bismuth ICP standard traceable to SRM from NIST Bi(NO3)3 in HNO3 2-3% 1000 mg/l Bi CertiPUR® 
17Bismuth standard solution traceable to SRM from NIST Bi(NO3)3 in HNO3 0.5 mol/l 1000 mg/l Bi CertiPUR® 
18Boron ICP standard traceable to SRM from NIST, H3BO3 in H2O 1000 mg/l B CertiPUR® 
19Boron standard solution traceable to SRM from NIST H3BO3 in H2O 1000 mg/l B CertiPUR® 
20Bromide standard solution traceable to SRM from NIST NaBr in H2O 1000 mg/l Br¯ CertiPUR® 
21Buffer solution (di-Sodium hydrogen phosphate/Potassium dihydrogen phosphate), colour: yellow, traceable to SRM fro 
22Buffer solution pH 4.00 (citric acid/sodium hydroxide/hydrogen chloride), traceable to SRM from NIST and PTB pH 
23Buffer solution (acetic acid/sodium acetate) traceable to SRM from NIST and PTB pH 4.66 (20°C) CertiPUR® 
24Buffer Solution (Boric acid, Sodium hydroxide, Potassium chloride) tracable to SRM from NIST and PTB pH 11.00 (25°C) CertiP 
25Buffer solution (boric acid/potassium chloride/sodium hydroxide), coloured: blue, traceable to SRM from NIST and PTB pH 9.00 (2 
26Buffer solution (boric acid/potassium chloride/sodium hydroxide), traceable to SRM from NIST and PTB pH 10.00 (25°C) CertiP 
27Buffer solution (boric acid/potassium chloride/sodium hydroxide solution), traceable to SRM from NIST and PTB pH 9.00 (25°C 
28Buffer solution (boric acid/potassium chloride/sodium hydroxide), traceable to SRM from NIST and PTB pH 9.00 (20°C) CertiPU 
29Buffer solution (boric acid/potassium chloride/sodium hydroxide), traceable to SRM from NIST and PTB pH 11.00 (20°C) CertiP 
30Buffer solution (boric acid/potassium chloride/sodium hydroxide), traceable to SRM from NIST and PTB pH 9.00 (25°C) CertiPU 
31Buffer solution (boric acid/potassium chloride/sodium hydroxide), traceable to SRM from NIST and PTB pH 10.00 (20°C) CertiP 
32Buffer Solution (boric acid/potassium chloride/sodium hydroxide) colour coded: yellow, tracable to NIST and PTB pH 10.00 (20&de 
33Buffer solution (boric acid/potassium chloride/sodium hydroxide), traceable to SRM from NIST and PTB pH 10.00 (25°C) CertiP 
34Buffer solution (boric acid/sodium hydroxide/hydrogen chloride), traceable to SRM from NIST and PTB pH 8.00 (25°C) CertiPUR 
35Buffer solution (boric acid/sodium hydroxide/hydrogen chloride), traceable to SRM from NIST and PTB pH 8.00 (20°C) CertiPUR 
36Buffer Solution (Citric acid, Sodium hydroxide, Hydrogen chloride), tracable to SRM from NIST and PTB pH 2.00 (25°C) CertiP 
37Buffer solution (citric acid/sodium hydroxide) traceable to SRM from NIST and PTB pH 5.00 (20°C) CertiPUR® 
38Buffer solution (citric acid/sodium hydroxide) traceable to SRM from NIST and PTB pH 5.00 (25°C) CertiPUR® 
39Buffer solution (citric acid/sodium hydroxide), traceable to SRM from NIST and PTB pH 6.00 (20°C) CertiPUR® 
40Buffer solution (citric acid/sodium hydroxide/hydrogen chloride), traceable to SRM from NIST and PTB pH 2.00 (20°C) CertiPU 
41Buffer solution (citric acid/sodium hydroxide/hydrogen chloride), traceable to SRM from NIST and PTB pH 3.00 (20°C) CertiPU 
42Buffer solution (citric acid/sodium hydroxide/hydrogen chloride), traceable to SRM from NIST and PTB pH 4.00 (20°C) CertiPU 
43Buffer solution (citric acid/sodium hydroxide/hydrogen chloride), traceable to SRM from NIST and PTB pH 3.00 (25°C) CertiPU 
44Buffer solution (Citric acid/Sodium hydroxide/Hydrogen chloride) colour: red, traceable to SRM from NIST and PTB pH 4.00 (20 &d 
45Buffer solution (di-Sodium hydrogen phosphate/Potassium dihydrogen phosphate), colour: green, traceable to SRM from NIST and PT 
46Buffer solution (di-sodium hydrogen phosphate/potassium dihydrogen phosphate), traceable to SRM from NIST and PTB pH 7.00 (20&d 
47Buffer solution (di-sodium hydrogen phosphate/potassium hydrogen phosphate), traceable to SRM from NIST and PTB pH 6.88 (20° 
48Buffer solution (di-sodium tetraborate), traceable to SRM from NIST and PTB pH 9.22 (20°C) CertiPUR® 
49Buffer Solution (Disodium hydrogen phosphate/Sodium hydroxide) traceable to SRM from NIST und PTB pH 12.00 (25°C) CertiPUR& 
50Buffer solution (Disodium tetraborate), tracable to SRM from NIST and PTB pH 9.18 (25°C) CertiPUR® 
51Buffer solution (glycine/sodium chloride/hydrogen chloride), traceable to SRM from NIST and PTB pH 1.00 (20°C) CertiPUR® 
52Buffer solution (glycine/sodium chloride/hydrogen chloride), traceable to SRM from NIST and PTB pH 1.00 (25°C) CertiPUR® 
53Buffer solution (potassium dihydrogen phosphate/di-sodium hydrogen phosphate), traceable to SRM from NIST and PTB pH 7.00 (25&d 
54Buffer solution (potassium dihydrogen phosphate/di-sodium hydrogen phosphate), traceable to SRM from NIST and PTB pH 7.00 (25&d 
55Buffer solution (potassium hydrogen phthalate), traceable to SRM from NIST and PTB pH 4.01 (25°C) CertiPUR® 
56Buffer solution (Potassium hydrogen phthalate), traceable to SRM from NIST and PTB pH 4.01 (25°C) CertiPUR® 
57Buffer solutions traceable to SRM from NIST and PTB 10 x pH 4.01 (phthalate), 10 x pH 7.00 (phosphate), 10 pH 9.00 (borate) pH 
58Buffer solutions traceable to SRM from NIST and PTB 10 x pH 4.01 (phthalate)m 10 x pH 7.00 (phosphate) 10 x pH 10.00 (borate) p 
59Cadmium ICP standard traceable to SRM from NIST Cd(NO3)2 in HNO3 2-3% 1000 mg/l Cd CertiPUR® 
60Cadmium standard solution traceable to SRM from NIST Cd(NO3)2 in HNO3 0.5 mol/l 1000 mg/l Cd CertiPUR® 
61Calcium carbonate volumetric standard, secondary reference material for complexometry, traceable to NIST Standard Reference Mat 
62Calcium ICP Standard traceable to SRM from NIST Ca(NO3)2 in HNO3 2-3% 1000 mg/l Ca CertiPUR® 
63Calcium ICP Standard traceable to SRM from NIST Ca(NO3)2 in HNO3 2-3% 10000 mg/l Ca CertiPUR® 
64Calcium standard dissolved in oil c(Ca in standard oil) = 1 g/kg CertiPUR® 
65Calcium standard solution traceable to SRM from NIST Ca(NO3)2 in HNO3 0.5 mol/l 1000 mg/l Ca CertiPUR® 
66Cerium ICP standard traceable to SRM from NIST Ce(NO3)3 in HNO3 2-3% 1000 mg/l Ce CertiPUR® 
67Certified sec. standard reference buffer solution di-sodium tetraborate decahydrate, directly traceable to primary SRM from NIS 
68Certified sec. standard reference buffer solution potassium hydrogen phthalate, directly traceable to primary SRM from NIST/PTB 
69Certified sec. standard reference buffer solution potassium hydrogen phosphate/di-sodium hydrogen phosphate, directly traceable 
70Certified sec. standard reference buffer solution potassium hydrogen phosphate/di-sodium hydrogen phosphate, directly traceable 
71Certified sec. standard reference buffer solution potassium tetraoxalate dihydrate, directly traceable to primary SRM from NIST 
72Cesium ICP Standard traceable to SRM from NIST CsNO3 in HNO3 2-3% 1000 mg/l Cs CertiPUR® 
73Cesium standard solution traceable to SRM from NIST CsNO3 in HNO3 0.5 mol/l 1000 mg/l Cs CertiPUR® 
74Chloride standard solution traceable to SRM from NIST NaCl in H2O 1000 mg/l Cl¯ CertiPUR® 
75Chromate standard solution traceable to SRM of NIST K2CrO4 in H2O 1000 mg/l CrO4²¯ CertiPUR® 
76Chromium ICP standard traceable to SRM from NIST Cr(NO3)3 in HNO3 2-3% 10000 mg/l Cr CertiPUR® 
77Chromium ICP standard traceable to SRM from NIST Cr(NO3)3 in HNO3 2-3% 1000 mg/l Cr CertiPUR® 
78Chromium standard solution traceable to SRM from NIST Cr(NO3)3 in HNO3 0.5 mol/l 1000 mg/l Cr CertiPUR® 
79Cobalt ICP standard traceable to SRM from NIST Co(NO3)2 in HNO3 2-3% 10000 mg/l Co CertiPUR® 
80Cobalt ICP standard traceable to SRM from NIST Co(NO3)2 in HNO3 2-3% 1000 mg/l Co CertiPUR® 
81Cobalt standard dissolved in oil c(Co in standard oil) = 1 g/kg CertiPUR® 
82Cobalt standard solution traceable to SRM from NIST Co(NO3)2 in HNO3 0.5 mol/l 1000 mg/l Co CertiPUR® 
83Colour Reference Solutions B for testing the colour intensity acc. to Ph. Eur. B1-B9 CertiPUR® 
84Colour Reference Solutions BY for testing the colour intensity acc. to Ph. Eur. BY1-BY7 CertiPUR® 
85Colour Reference Solutions GY for testing the colour intensity acc. to Ph. Eur. GY1-GY7 CertiPUR® 
86Colour Reference Solutions R for testing the colour intensity acc. to Ph. Eur. R1-R7 CertiPUR® 
87Colour Reference Solutions Y for testing the colour intensity acc. to Ph. Eur. Y1-Y7 CertiPUR® 
88Conductivity water (nominal 0 mS/cm) Test solution for Measurement of electrolytic Conductivity, traceable to PTB and NIST Cert 
89Copper ICP standard traceable to SRM from NIST Cu(NO3)2 in HNO3 2-3% 10000 mg/l Cu CertiPUR® 
90Copper ICP standard traceable to SRM from NIST Cu(NO3)2 in HNO3 2-3% 1000 mg/l Cu CertiPUR® 
91Copper standard solution traceable to SRM from NIST Cu(NO3)2 in HNO3 0.5 mol/l 1000 mg/l Cu CertiPUR® 
92Cyanide standard solution traceable to SRM from NIST K2[Zn(CN)4] in H2O 1000 mg/l CN¯ CertiPUR® 
93di-Sodium oxalate volumetric standard, secondary reference material for redox titration, traceable to NIST Standard Reference M 
94di-Sodium tetraborate decahydrate certified secondary standard reference material for pH measurement; directly traceable to pri 
95Dysprosium ICP standard traceable to SRM from NIST Dy2O3 in HNO3 2-3% 1000 mg/l Dy CertiPUR® 
96Erbium ICP standard traceable to SRM from NIST Er2O3 in HNO3 2-3% 1000 mg/l Er CertiPUR® 
97Europium ICP standard traceable to SRM from NIST Eu2O3 in HNO3 2-3% 1000 mg/l Eu CertiPUR® 
98Fluoride standard solution NaF in H2O 1000 mg/l F¯ CertiPUR® 
99Gadolinium ICP standard traceable to SRM from NIST Gd2O3 in HNO3 2-3% 1000 mg/l Gd CertiPUR® 
100Gallium ICP standard traceable to SRM from NIST Ga(NO3)3 in HNO3 2-3% 1000 mg/l Ga CertiPUR® 
101Germanium ICP standard traceable to SRM from NIST (NH4)2GeF6 in H2O 1000 mg/l Ge CertiPUR® 
102GF AAS Multi element standard XVIII (16 elements in diluted nitric acid) CertiPUR® 
103Gold ICP standard traceable to SRM from NIST H(AuCl4) in HCl 7% 1000 mg/l Au CertiPUR® 
104Gold standard solution traceable to SRM from NIST H(AuCl4) in HCl 2 mol/l 1000 mg/l Au CertiPUR® 
105Hafnium ICP standard traceable to SRM from NIST HfOCl2 in HCl 7% 1000 mg/l Hf CertiPUR® 
106Holmium ICP standard traceable to SRM from NIST Ho2O3 in HNO3 2-3% 1000 mg/l Ho CertiPUR® 
107IC Multi-element standard I ß (F¯) = 100 mg/l, ß (Cl¯) = 250 mg/l, ß (NO3¯),(SO4²¯) = 500 mg/l, ß( 
108ICP Multi element standard solution XXIII for mass calibration CertiPUR® 
109ICP Multi element standard solution XXIV tuning solution 700 ES CertiPUR® 
110ICP multi-element standard solution I (19 elements in dilute nitric acid) CertiPUR® 
111ICP multi-element standard solution IV (23 elements in diluted nitric acid) 1000 mg/l: Ag, Al, B, Ba, Bi, Ca, Cd, Co, Cr, Cu, F 
112ICP multi-element standard solution IX (9 elements in dilute nitric acid) 100 mg/l: As, Be, Cd, Cr(VI), Hg, Ni, Pb, Se, Tl Cert 
113ICP multi-element standard solution VI for ICP-MS (30 elements in dilute nitric acid) CertiPUR® 
114ICP multi-element standard solution VIII (24 elements in dilute nitric acid) 100 mg/l: Al, B, Ba, Be, Bi, Ca, Cd, Co, Cr, Cu, F 
115ICP multi-element standard solution X for surface water testing (23 elements in dilute nitric acid) CertiPUR® 
116ICP multi-element standard solution XI for sludge testing (7 elements in dilute nitric acid) CertiPUR® 
117ICP multi-element standard solution XIII (15 elements in diluted nitric acid) CertiPUR® 
118ICP multi-element standard solution XIV (11 elements in dilute hydrochloric acid) 100 mg/l: P, S, K; 20 mg/l: As, La, Li, Mo, M 
119ICP multi-element standard solution XVI (21 elements in diluted nitric acid) 100 mg/l:Sb, As, Be, Cd, Ca, Cr, Co, Cu, Fe, Pb, L 
120ICP multi-element standard solution XVII (7 elements in hydrochloric acid 15%) 100 mg/l: Hf, Ir, Sb, Sn, Ta, Ti, Zr CertiPUR&re 
121ICP multielement standard V for wavelength calibration CertiPUR® 
122Indium ICP standard traceable to SRM from NIST In(NO3)3 in HNO3 2-3% 1000 mg/l In CertiPUR® 
123Indium standard solution traceable to SRM from NIST In (NO3)3 in HNO3 0.5 mol/l 1000 mg/l In CertiPUR® 
124Iridium ICP standard IrCl3 in HCl 7% 1000 mg/l Ir CertiPUR® 
125Iron ICP standard traceable to SRM from NIST Fe(NO3)3 in HNO3 2-3% 1000 mg/l Fe CertiPUR® 
126Iron ICP standard traceable to SRM from NIST, Fe(NO3)3 in HNO3 10% 10000 mg/l Fe CertiPUR® 
127Iron standard solution traceable to SRM from NIST Fe(NO3)3 in HNO3 0.5 mol/l 1000 mg/l Fe CertiPUR® 
128Iron(II) ethylenediammonium sulfate Volumetric standard, secondary reference material for redox titration, traceable to NIST St 
129Lanthanum ICP standard traceable to SRM from NIST La(NO3)3 in HNO3 2-3% 1000 mg/l La CertiPUR® 
130Lead ICP standard traceable to SRM from NIST Pb(NO3)2 in HNO3 2-3% 1000 mg/l Pb CertiPUR® 
131Lead ICP standard traceable to SRM from NIST Pb(NO3)2 in HNO3 2-3% 10000 mg/l Pb CertiPUR® 
132Lead standard solution traceable to SRM from NIST Pb(NO3)2 in HNO3 0.5 mol/l 1000 mg/l Pb CertiPUR® 
133Lithium ICP Standard traceable to SRM from NIST LiNO3 in HNO3 2-3% 1000 mg/l Li CertiPUR® 
134Lithium standard solution traceable to SRM from NIST LiNO3 in HNO3 0.5 mol/l 1000 mg/l Li CertiPUR® 
135Lutetium ICP standard traceable to SRM from NIST Lu2O3 in HNO3 2-3% 1000 mg/l Lu CertiPUR® 
136Magnesium ICP standard traceable to SRM from NIST Mg(NO3)2 in HNO3 2-3% 10000 mg/l Mg CertiPUR® 
137Magnesium ICP standard traceable to SRM from NIST Mg(NO3)2 in HNO3 2-3% 1000 mg/l Mg CertiPUR® 
138Magnesium standard solution traceable to SRM from NIST Mg(NO3)2 in HNO3 0.5 mol/l 1000 mg/l Mg CertiPUR® 
139Manganese ICP standard traceable to SRM from NIST Mn(NO3)2 in HNO3 2-3% 10000 mg/l Mn CertiPUR® 
140Manganese ICP standard traceable to SRM from NIST Mn(NO3)2 in HNO3 2-3% 1000 mg/l Mn CertiPUR® 
141Manganese standard solution traceable to SRM from NIST Mn(NO3)2 in HNO3 0.5 mol/l 1000 mg/l Mn CertiPUR® 
142Mercury ICP standard traceable to SRM from NIST Hg(NO3)2 in HNO3 10% 1000 mg/l Hg CertiPUR® 
143Mercury ICP standard traceable to SRM from NIST Hg(NO3)2 in HNO3 10% 10000 mg/l Hg CertiPUR® 
144Mercury standard solution traceable to SRM from NIST Hg(NO3)2 in HNO3 2 mol/l 1000 mg/l Hg CertiPUR® 
145Molybdenum ICP standard traceable to SRM from NIST (NH4)6Mo7O24 in H2O 1000 mg/l Mo CertiPUR® 
146Molybdenum standard solution traceable to SRM from NIST (NH4)6Mo7O24 in H2O 1000 mg/I MO CertiPUR® 
147Multi-element standard I dissolved in oil c(Ba) = 8 g/kg; c(Ca) = 4 g/kg; c(Mg) = 1 g/kg; c(Zn) = 1,6 g/kg CertiPUR® 
148Multi-element standard II dissolved in oil 100 ppm: Ag, Al, B, Ba, Ca, Cd, Cr, Cu, Fe, Mg, Mn, Mo, Na, Ni, P, Pb, Si, Sn, Ti, V 
149Multi-element standard III dissolved in oil 900 ppm: Ag, Al, B, Ba, Ca, Cd, Cr, Cu, Fe, Mg, Mn, Mo, Na, Ni, P, Pb, Si, Sn, Ti, 
150Multi-element standard VII for cation chromatography (9 elements in HNO3 0.001 mol/l) 100 mg/l: NH4, Ba, Ca, K, Li, Na,Mg, Mn, 
151Neodymium ICP standard traceable to SRM from NIST Nd2O3 in HNO3 2-3% 1000 mg/l Nd CertiPUR® 
152Nickel ICP standard traceable to SRM from NIST Ni(NO3)2 in HNO3 2-3% 1000 mg/l Ni CertiPUR® 
153Nickel ICP standard traceable to SRM from NIST Ni(NO3)2 in HNO3 2-3% 10000 mg/l Ni CertiPUR® 
154Nickel standard solution traceable to SRM from NIST Ni(NO3)2 in HNO3 0.5 mol/l 1000 mg/l Ni CertiPUR® 
155Niobium ICP standard traceable to SRM from NIST NH4NbF6 in H2O 1000 mg/l Nb CertiPUR® 
156Nitrate standard solution traceable to SRM from NIST NaNO3 in H2O 1000 mg/l NO3¯ CertiPUR® 
157Nitrite standard solution traceable to SRM from NIST NaNO2 in H2O 1000 mg/l NO2¯ CertiPUR® 
158Osmium ICP standard (NH4)2OsCl6 in HCl 7% 1000 mg/l Os CertiPUR® 
159Palladium ICP standard traceable to SRM from NIST Pd(NO3)2 in HNO3 2-3% 1000 mg/l Pd CertiPUR® 
160Palladium standard solution traceable to SRM from NIST Pd(NO3)2 in HNO3 0.5 mol/l 1000 mg/l Pd CertiPUR® 
161Phosphate standard solution traceable to SRM from NIST KH2PO4 in H2O 1000 mg/l PO4³¯ CertiPUR® 
162Phosphorus ICP standard traceable to SRM from NIST H3PO4 in H2O 1000 mg/l P CertiPUR® 
163Phosphorus ICP standard traceable to SRM from NIST H3PO4 in H2O 10000 mg/l P CertiPUR® 
164Phosphorus standard dissolved in oil c(P in standard oil) = 1g/kg CertiPUR® 
165Platinum Cobalt Color Reference Solution (HAZEN 500) According to DIN EN ISO 7887 and ASTM D1209 Pt 500 mg/l CertiPUR® 
166Platinum ICP standard traceable to SRM from NIST H2PtCl6 in HCl 7% 1000 mg/l Pt CertiPUR® 
167Platinum standard solution traceable to SRM from NIST H2PtCl6 in HCl 2 mol/l 1000mg/l Pt CertiPUR® 
168Potassium chloride solution (nominal 0.015 mS/cm) certified reference material for the measurement of electrolytic conductivity 
169Potassium chloride solution (nominal 0.147 mS/cm) certified reference material for the measurement of electrolytic conductivity 
170Potassium chloride solution (nominal 0.147 mS/cm) certified reference material for the measurement of electrolytic conductivity 
171Potassium chloride solution (nominal 1.41 mS/cm) certified reference material for the measurement of electrolytic conductivity, 
172Potassium chloride solution (nominal 1.41 mS/cm) certified reference material for the measurement of electrolytic conductivity, 
173Potassium chloride solution (nominal 111 mS/cm) certified reference material for the measurement of electrolytic conductivity, 
174Potassium chloride solution (nominal 12.8 mS/cm) certified reference material for the measurement of electrolytic conductivity, 
175Potassium chloride solution (nominal 12.8 mS/cm) certified reference material for the measurement of electrolytic conductivity, 
176Potassium dichromate volumetric standard, secondary reference material for redox titration, traceable to NIST SRM CertiPUR® 
177Potassium dihydrogen phosphate, di-Sodium hydrogen phosphate certified secondary standard reference material for pH measurement 
178Potassium hydrogen phthalate certified secondary standard reference material for pH measurement; directly traceable to primary 
179Potassium hydrogen phthalate Volumetric standard, secondary reference material for alkalimetry, traceable to NIST Standard Refe 
180Potassium hydrogen tartrate certified secondary standard reference material for pH measurement; directly traceable to primary S 
181Potassium ICP standard traceable to SRM from NIST KNO3 in HNO3 2-3% 1000 mg/l K CertiPUR® 
182Potassium ICP standard traceable to SRM from NIST KNO3 in HNO3 2-3% 10000 mg/l K CertiPUR® 
183Potassium iodate volumetric standard, secondary reference material for iodometry, traceable to NIST SRM CertiPUR® 
184Potassium standard dissolved in oil c(K in standard oil) = 1 g/kg CertiPUR® 
185Potassium standard solution traceable to SRM from NIST KNO3 in HNO3 0.5 mol/l 1000 mg/l K CertiPUR® 
186Potassium tetraoxalate dihydrate certified secondary standard reference material for pH measurement; directly traceable to prim 
187Praseodymium ICP standard traceable to SRM from NIST Pr2O3 in HNO3 2-3% 1000 mg/l Pr CertiPUR® 
188Refractive index standard kit 1 2,2,4-Trimethyl-pentane/water, traceable to SRM from NIST and PTB n (20°C)=1,3915 CertiPUR& 
189Refractive index standard kit 2 Toluene/water, traceable to SRM from NIST and PTB n (20°C)=1,4969 CertiPUR® 
190Refractive index standard kit 3 1-Methyl-naphthalene/water, traceable to SRM from NIST and PTB n (20°C)=1,6160 CertiPUR® 
191Refractive index standard traceable to SRM from NIST and PTB 0° Brix CertiPUR® 
192Refractive index standard traceable to SRM from NIST and PTB 20° Brix CertiPUR® 
193Refractive index standard traceable to SRM from NIST and PTB 30° Brix CertiPUR® 
194Refractive index standard traceable to SRM from NIST and PTB 5° Brix CertiPUR® 
195Refractive index standard traceable to SRM from NIST and PTB 60° Brix CertiPUR® 
196Rhenium ICP standard traceable to SRM from NIST NH4ReO4 in H2O 1000 mg/l Re CertiPUR® 
197Rhodium ICP standard traceable to SRM from NIST Rh(NO3)3 in HNO3 2-3% 1000 mg/l Rh CertiPUR® 
198Rubidium ICP standard traceable to SRM from NIST RbNO3 in HNO3 2-3% 1000 mg/l Rb CertiPUR® 
199Ruthenium ICP standard RuCl3 in HCl 7% 1000 mg/l Ru CertiPUR® 
200Samarium ICP standard traceable to SRM from NIST Sm2O3 in HNO3 2-3% 1000 mg/l Sm CertiPUR®