Ozone Fitting Resistance Chart

(N) Nylon has good resistance to organic solvents, oils and gasoline. Good strength at high temperatures. Cold and hot-water applications. Longtime weathering resistance. Good impact resistance, both single and repeated. Not recommended for use with ammonium, boric acid, calcium, sulfuric acid, or hydrochloric acid. F.D.A. listed. Also N.S.F. listed.

(C) Celcon*, or acetal copolymer, has high tensile strength and good impact resistance over a broad temperature range. Translucent white color. Not affected by continuous hot-water service and works smoothly with metal tubing. Celcon cannot be recommended for continuous exposure to solutions with a chlorine concentration greater than 1 ppm. Suggested maximum continuous temperature is 220°F in air and 180°F in water. Unaffected by most inorganics, except sulfuric, nitric and hydrochloric acids. Listed by U.S.D.A. and F.D.A. for coffee, milk and antibiotics. Also N.S.F. listed. Should not be continuously exposed to sunlight.

(P) Polypropylene has good chemical resistance. Withstands continuous temperatures up to 215°F. Opaque. Unaffected by most weak acids and alkalis. Below 175°F it has good resistance to organic solvents. Do not use with oxidants or strong acids or in continuous sunlight. N.S.F. listed. 20% glass filled for improved stiffness.

(K) Kynar**, a polyvinylidene fluoride, has outstanding chemical resistance for handling highly corrosive fluids. F.D.A. listed, N.S.F. Listed.

TRADEMARK OF Hoechst Celanese Corporation
** TRADEMARK OF Atochem North America, Inc.

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