Progress Made On Agricultural Tractor Cab HVAC Standards

The American Society of Agricultural and Biological Engineers (ASABE) announces the recent approval of two standards in its series on air quality systems of agricultural cabs.

The revision to part 2 of the series, ANSI/ASBE S613-2.1, Tractors and self-propelled machinery for agriculture — Air quality systems for cabs — Part 2:  Cab and HVAC design, updates the standard’s format and includes enhancements identified by committee members. That revision was approved in late June.

Part 3, ANSI/ASABE S613-3, Tractors and self-propelled machinery for agriculture — Air quality systems for cabs — Part 3: Filters for environmental cab HVAC systems, which addresses filter design, was approved in August.

Work also continues on part 4, the last in the series, which will include a field-test procedure for cab qualification. Completion is expected in 2015. The drafting committee encourages those interested to contribute comments on the optimum test method.

ASABE members with standards access and those with site-license privileges can access the full-text via electronic download on the ASABE online Technical Library at Others can obtain a copy for a fee directly from the library or by contacting ASABE headquarters at

ASABE is recognized worldwide as a standards developing organization for food, agricultural, and biological systems, with more than 250 standards currently in publication. Conformance to ASABE standards is voluntary, except where required by state, provincial, or other governmental requirements, and the documents are developed by consensus in accordance with procedures approved by the American National Standards Institute.

For information on this or any other ASABE standard, contact Scott Cedarquist at 269-932-7031, A current listing of all ASABE standards projects can be found on the ASABE Website.

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