A-A-52047D
2.1 Type. The tubing covered by this CID should be of the following types and classes.
2.1.1 Type I, Commercial rubber tubing. Type I tubing should be natural rubber, synthetic rubber, or a mixture of the two in the following classes:
Class 1 - Light wall. Class 2 - Heavy wall. Class 3 - Pressure. Class 4 - Gooch.
2.1.2 Type II, Synthetic rubber tubing. Type II tubing should be compounded from synthetic rubber in the following classes:
Class 1 - Light wall. Class 2 - Heavy wall.
Class 5 - Vacuum connections.
2.1.3 Type III, Natural rubber compound tubing. Type III should be compounded from natural rubber (inside diameter as shown in 2.2 below with a tolerance of ± 0.062 inch, wall thickness of 0.062 ±0.016 inch, (Length of 3 feet ±1 inch).
2.1.4 Type IV, Latex tubing. Type IV tubing should be made from liquid natural rubber latex.
2.1.5 Type V, Laboratory pure gum, natural rubber, or synthetic tubing. Type V tubing shall be natural rubber or synthetic equivalent (CIS 1-4 polyisoprene) in the following classes:
Class 1 - Light wall. Class 2 - Heavy wall. Class 3 - Pressure. Class 4 - Gooch.
2.1.6 Type VI, Plastic tubing. Type VI plastic tubing should contain polyvinyl chloride as the base material in the following classes:
Class 6 - General use.
Class 7 - Pressure and vacuum.
2.2 Size. The tubing covered by this CID should be of the following nominal sizes (in inches).
1/8 |
3/16 |
1/4 |
5/16 |
3/8 |
1/2 |
5/8 |
3/4 |
1 |
3
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