7 CFR § 3300.10 - Measurement of the K-coefficient of an insulated body.
---
identifier: "/us/cfr/t7/s3300.10"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "7 CFR § 3300.10 - Measurement of the K-coefficient of an insulated body."
title_number: 7
title_name: "Agriculture"
section_number: "3300.10"
section_name: "Measurement of the K-coefficient of an insulated body."
chapter_name: "OFFICE OF TRANSPORTATION, DEPARTMENT OF AGRICULTURE"
part_number: "3300"
part_name: "AGREEMENT ON THE INTERNATIONAL CARRIAGE OF PERISHABLE FOODSTUFFS AND ON THE SPECIAL EQUIPMENT TO BE USED FOR SUCH CARRIAGE (ATP); INSPECTION, TESTING, AND CERTIFICATION OF SPECIAL EQUIPMENT"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "Sec. 4, Pub. L. 97-325, International Carriage of Perishable Foodstuffs Act (7 U.S.C. 4403)."
regulatory_source: "51 FR 33879, Sept. 24, 1986, unless otherwise noted."
cfr_part: "3300"
---
# 3300.10 Measurement of the K-coefficient of an insulated body.
The K-coefficient shall be measured according to the procedures in ATP, Annex 1, Appendix 2, paragraphs 1-28, and the following shall apply:
(a) The internal heating method shall be used.
(b) In ATP, Annex 1, Appendix 2, paragraph 8, last line, “about + 20 °C for the mean temperature of the walls of the body shall be interpreted to mean between +19 °C (+66 °F) and 21 °C (+70 °F).
(c) A report of each test shall be completed on a form corresponding to the pertinent test report model prescribed in ATP, Annex 1, Appendix 2. Report forms may be obtained by a request to the ATP manager.