Methanol, HPLC Grade, 4L

CONTAINS

CH3OH CAS No. 67-56-1 MW 32.04

TEST SPECIFICATION

Appearance: Colorless liquid
Assay: min 99.90
Color (APHA): max 10
Oxidizable Substances (Permanganate Retention): To Pass Test
Residue after evaporation (Non-Volatile Matter): max 0.001%
Substances Darkened by Sulfuric Acid: To Pass Test
Substances Reducing Permanganate: To Pass Test
Titrable Acid: max 0.0003
Titrable Base: max 0.0002
Water (H2O): max 0.1

Volumetric glassware complies with Class A tolerance requirements of ASTM E 288 and NIST Circular 434; it is calibrated before first use and recalibrated regularly in accordance with ASTM E 542 and NIST Procedure NBSIR 74-461. Balances are calibrated regularly with weights certified traceable to the NIST national mass standard. Thermometers and temperature probes are calibrated before first use and recalibrated regularly with a thermometer traceable to NIST standards. All products are prepared according to master documents that assure manufacture according to validated methods. Batch records document raw material traceability and production and testing history for each lot manufactured.

The Certificate of Analysis is designed to comply with ISO Guide 31 “Reference Materials — Contents of Certificates and Labels.”