Clarify the withdrawn status of ASTM F2420 (insulated-hood surface RH test) when a spec references it, distinguish it from F1869/F2170, and identify the correct standard for wood flooring's own moisture content

Steps

1. Confirm ASTM F2420's history: titled 'Standard Test Method for Determining Relative Humidity on the Surface of Concrete Floor Slabs Using Relative Humidity Probe Measurement and an Insulated Hood,' last active as F2420-05(2011), and WITHDRAWN by ASTM in 2014 with no active current edition published or purchasable as a standalone standard
2. If a spec or contractor references 'F2420' as a currently required test, flag this explicitly: the standard has no active edition, so it cannot be specified as a live, purchasable test method — recommend the spec be corrected to reference F1869 or F2170, or confirm with the spec author what they actually intend
3. Note that ASTM F2659 (the electronic moisture meter guide) still references F1869, F2170, and F2420 together in its scope/introductory text as related quantitative concrete moisture methods — this is a legacy cross-reference in F2659 and does not mean F2420 remains active or purchasable
4. Do not conflate F2420 (a withdrawn concrete-surface RH method) with wood flooring moisture content testing; for the wood flooring material's own moisture content, point to ASTM D4442 (Standard Test Methods for Direct Moisture Content Measurement of Wood and Wood-Base Materials) as the relevant standard family, confirming the specific test method and current edition on store.astm.org
5. Recommend confirming with the flooring/adhesive manufacturer which specific current test method (F1869 or F2170) their warranty terms recognize, since F2420 is no longer an available option for new specs
6. Direct the requester to store.astm.org to confirm D4442's current edition and to reconfirm F2420's withdrawn status has not changed, since this reflects a point-in-time check