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This specification covers the properties and requirements for 50 % uninhibited formaldehyde and 37 % uninhibited and inhibited formaldehyde. Specimens shall be suitably sampled and tested, and shall meet the specified values of the following properties: apparent specific gravity; formaldehyde content; acidity; color (Pt-Co scale); iron content; methanol content; and appearance.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
1.2 The following applies to all specified limits in this standard; for purposes of determining conformance with this standard, an observed value or a calculated value shall be rounded off “to the nearest unit” in the last right-hand digit used in expressing the specification limit, in accordance with the rounding-off method of Practice E29.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D891 Test Methods for Specific Gravity, Apparent, of Liquid Industrial Chemicals
D1209 Test Method for Color of Clear Liquids (Platinum-Cobalt Scale)
D2087 Test Method for Iron in Formaldehyde Solutions
D2194 Test Method for Concentration of Formaldehyde Solutions
D2379 Test Method for Acidity of Formaldehyde Solutions
D2380 Test Method for Methanol Content of Formaldehyde Solutions
D5386 Test Method for Color of Liquids Using Tristimulus Colorimetry
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E300 Practice for Sampling Industrial Chemicals
ICS Number Code 71.080.80 (Aldehydes and ketones)
UNSPSC Code 12352501(Formaldehydes)