Document Center is acquired by Nimonik

Scope

1.1 This test method describes the spectrophotometric determination of total aldehyde carbonyl content in the range of 0.5 to 50 mg/kg (as acetaldehyde) or 0.3 to 35 mg/kg (as formaldehyde) in mono-, di-, and triethylene glycol (MEG, DEG and TEG). Alkoxyalcohols (hemiacetals), if present, are co-determined, whereas dialkoxyalkanes (acetals), if present, are not. The results provide a measure of the purity of the sample with respect to total aldehyde carbonyl content.

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.3 Review the current material Safety Data Sheets (MSDS) for detailed information concerning toxicity, first aid procedures and safety precautions.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Significance and Use

Knowledge of the aldehyde content of Monoethylene glycol is required to establish whether the product meets the requirements of its quality specifications.

Keywords

ldehyde; diethylene glycol; MBTH; monoethylene glycol; spectrophotometric; triethylene glycol; Aldehydes; MBTH; Methyl-benzothiazolinone hydrazone hydrochloride (MBTH); Monoethylene glycol (MEG); Spectrophotometry; ICS Number Code 71.080.60 (Alcohols. Ethers)

To find similar documents by ASTM Volume:

06.04 (Paint -- Solvents; Aromatic Hydrocarbons)

15.05 (Engine Coolants; Halogenated Organic Solvents and Fire Extinguishing Agents; Industrial and Specialty Chemicals)

To find similar documents by classification:

71.040.40 (Chemical analysis Including analysis of gases and surface chemical analysis)

This document comes with our free Notification Service, good for the life of the document.

This document is available in either Paper or PDF format.