GB1 Height Calibration Tube

Pine provides the GB1 Height Calibration tube with a certificate of calibration for purchase alone or as part of the Calibration Kit for Pine’s GB1 Superpave Gyratory Compactor.  Pine also provides recalibration services.

Re-Certification Interval

AASHTO R18 does not specify the re-certification interval for measurement standards.  Therefore, AASHTO follows the recommendation of the manufacturer, which is 24 months for Pine Height Tubes.

ISO 17025-Certified Calibration

AASHTO R18-17 Section 6.2.1.5 requires Pine Height Tubes calibrated on or after January 1, 2018 to be calibrated by a laboratory that is ISO 17025-certified to calibrate them.  You may purchase AASHTO R18 from the AASHTO Bookstore.

Does the ISO 17025 Requirement Affect Your Height Tube?

The ISO 17025 Requirement applies to Pine Height Tubes that meet ALL of the following requirements.

1. The Height Tube calibration date is on or after January 1, 2018.
2. You use the Height Tube to conduct an official calibration or standardization of your gyratory compactor.
3. Your laboratory holds or is seeking AASHTO accreditation.

Pine Re-Certification Services

Pine offers ISO 17025-certified and non-ISO 17025-certified calibrations.  Specify the type of calibration that you need when contacting us.

Pine Gyratory Compactor Calibration Services

Pine Field Service Technicians use calibration tools with ISO 17025-certified calibration.