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1.1 This practice covers the measurement technique for a dip tube of a mechanical pump dispenser.

1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

2.1 This practice is to be used to measure the length of a specified dip tube from the bottom of the sealing surface to the end of the dip tube in a mechanical pump dispenser.

2.2 This practice is to be used to measure the exposed length of a specified dip tube of a mechanical pump dispenser.