Scope
1.1 This Standard applies to glass-lined storage tanks for household hot water service. Requirements are given for base metal, construction, glass lining, cathodic protection, inspection, and testing.
1.2 This Standard covers glass-lined storage tanks at the point of manufacture, having 610 mm (24 in) inside diameter and less, with a maximum working pressure of 1034 kPa (150 psi), and subject to maximum input limitations as follows:
(a) electric - single element, 4500 W;
(b) electric - double element, 4500 W upper, 4500 W lower, flip flop circuit (alternate operation);
(c) oil-fired - 2.84 L/h (0.75 US gal/h) or less; and
(d) gas-fired - less than 21 980 W (75 000 Btuh).
1.3 The values given in SI (metric) units are the standard. The values given in parentheses are for information only.
1.1 This Standard applies to glass-lined storage tanks for household hot water service. Requirements are given for base metal, construction, glass lining, cathodic protection, inspection, and testing.
1.2 This Standard covers glass-lined storage tanks at the point of manufacture, having 610 mm (24 in) inside diameter and less, with a maximum working pressure of 1034 kPa (150 psi), and subject to maximum input limitations as follows:
(a) electric - single element, 4500 W;
(b) electric - double element, 4500 W upper, 4500 W lower, flip flop circuit (alternate operation);
(c) oil-fired - 2.84 L/h (0.75 US gal/h) or less; and
(d) gas-fired - less than 21 980 W (75 000 Btuh).
1.3 The values given in SI (metric) units are the standard. The values given in parentheses are for information only.
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