Cope-LLG Catalogue 2018

311 3. Analytical measurement and testing pH-measurement/Buffer solutions GENERAL CATALOGUE EDITION 20 E & OE. LLG-pH-Buffer solution Tested and certified at 20 °C. Provided with label that gives the pH value at different temperatures. Tolerance ±0.02 pH. Supplied in PE-HD containers. Traceable to NIST (SRM). Temperature dependence data is printed on the label as well as batch numbers and expiry dates. Buffers have a 24 month shelf life from date of manufacture. 1 Capacity pH-value Buffer PK Cat. No. ml at 20 °C 1000 1000 1000 1000 4.00 7.00 9.00 10.00 citrate phosphate H 3 BO 3 -KCl-NaOH borate 1 1 1 1 9.041 367 9.041 368 9.041 374 9.041 369 1 LLG-pH buffer solutions with colour coding The ready-to-use colour coded LLG-pH buffer solutions offer excellent quality, precision and are designed to suit all end user requirements. Supplied in 1L bottles and conveniently colour coded to eliminate any risk of confusion between the 3 pH values. - Accuracy ±0.01 pH, tested and certified at 25 °C - Temperature dependence data table printed on the label - Traceable to NIST 2 Capacity Colour pH- value PK Cat. No. ml at 25 °C 1000 1000 1000 red yellow blue 4.00 7.00 10.00 1 1 1 9.040 865 9.040 866 9.040 867 2 LLG-pH-Buffer solutions with colour coding in twin-neck dispensing bottles The ready-to-use buffer solutions offer excellent quality, precision and advantages in use. The calibration vessel, integrated into the twin-neck dispensing bottles, allows the particularly economical dispensing of solution and prevents contamination. Features - Accuracy ±0.01 pH, tested and certified at 25 °C - Temperature dependence data table printed on the label - Traceable to NIST - Shelf-life: 24 months (pH 7 and 10) or 36 months (pH 4) from date of production - Colour-coded 3 Capacity Colour pH- value PK Cat. No. ml at 25 °C 250 250 250 red yellow blue 4.00 7.00 10.00 1 1 1 9.040 868 9.040 869 9.040 871 3 Technical pH buffer solutions Colour coded. Tested and ISO 17025 Certified at 25 °C. Uncertainty of measurement ±0.02pH. Temperature dependence data is printed on the label as are lot numbers and expiry dates. These pH buffer solutions are suitable for use where very accurate measurements are required and are supplied with a detailed Certificate of Analysis which outlines traceability to N.I.S.T (the N.I.S.T SRM(s) Lot No. is stated on the certificate). This item has a 12 to 36 month shelf life from date of manufacture depending on pH value. 4 Reagecon Capacity Colour pH- value PK Cat. No. ml at 25 °C 250 250 500 1000 250 500 1000 250 250 1000 Red Red Red Red Yellow Yellow Yellow Blue Blue Blue 2.00 4.01 4.01 4.01 7.02 7.02 7.02 9.21 10.00 10.00 1 1 1 1 1 1 1 1 1 1 9.040 949 9.040 950 6.206 907 9.040 955 6.240 744 6.229 762 6.238 677 9.040 951 6.240 745 6.238 676 4