1-4 ATCH 1 SPECS 01030 10-R-0102 SABER.pdf

TRAVIS AFB - SABER

1. GENERAL

SECTION 01030

METRIC MEASUREMENTS

Contract FA4427-10-R-OI02

This contract includes metric units of measurements. The metric units used are the International System of Units (SI) developed and maintained by the General Conference on Weights and Measures (CGPM); the name International System of Units and the international abbreviation SI were adopted by the 11th CGPM in 1960. In some cases both metric SI units and English inch-pound (t-P) UnIts are included in a section of the specifications; the measurements used in any particular case have been determined by the circumstances involved. Specifications requiring metric measurements may contain requirements for equipment (e.g. printers, HVAC systems) described in I-P units; in which case no metric substitution will be allowed. Specifications requiring metric measurements may include references to related non-metric industry and/or Government standards; in which case the requirements of the standard govern.

2. REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to in the text by basic designation only.

AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM)

ASTM E 380 (1993) Practice for Use of the International System of Units (SI)

ASTM E 621 (1984; R 1991) Practice for Use of Metric (SI) Units in Building Design and Construction

3. USE OF MEASUREMENTS.

Measurements shall be either in SI or I-P units as indicated, except for soft metric measurements or as otherwise authorized. The contractor shall be responsible for all associated labor and materials when authorized to substitute one system of units for another and for the final assembly and performance of the specified work and/or products.

3.1. Hard Metric.

A hard metric measurement is indicated by a SI value with no expressed correlation to an I-P value (e.g. 38-mm). Hard metric measurements are often used for field data such as distance from one point to another or distance above the floor. Products are considered to be hard metric when they are manufactured to metric dimensions or have an industry recognized metric designation.

3.2. Soft Metric.

A soft metric measurement is indicated by a SI value, which is a mathematical approximation of the I-P value shown in parentheses (e.g. 38.1 mm [1-1/2 inches]). Soft metric measurements are

TRAVIS AFB _SABER e ~ntract FA4427-10-R-OI02 used for measurements pertaining to products, test values, and other situations where the i-p units are the standard for manufacture, verification, or other controlling factor. The I-P value shall govern while the metric measurement is provided for information.

3.3. Neutral.

A neutral measurement is indicated by an identifier, which has no expressed relation to either a SI or an I-P value (e.g. American Wire Gage (AWG) which indicates thickness but in itself is neither SI nor I-P).

4. COORDINATION.

Discrepancies, such as mismatches or product unavailability, arising from use of both metric and non-metric. measurements and discrepancies between the measurements in the specifications and the measurements in the drawings shall be brought to the attention of the CO for resolution.

5. RELATIONSHIP TO SUBMITTALS.

Submittals for Government approval or for information only shall cover the SI or I-P products actually being furnished for the project. The contractor shall submit the required drawings and calculations in the same units used in the contract documents describing the product or requirement unless otherwise instructed or approved. The contractor shall use ASTM E 380 and ASTM E 621 as the basis for establishing metric measurements required to be used in submittals.