New York Codes, Rules and Regulations
Title 16 - DEPARTMENT OF PUBLIC SERVICE
Chapter V - WATERWORKS CORPORATIONS
Subchapter A - SERVICE
Part 500 - Meter Approvals; Testing Of Meters; Reports Of Testing
Section 500.6 - Registration of meters
Current through Register Vol. 46, No. 12, March 20, 2024
(a) Displacement type.
The registration on the meter dial shall indicate the quantity recorded to be not less than 98.5 percent nor more than 101.5 percent of the water actually passed through the meter while it is being tested at any rate of flow within the limits specified herein under "normal test flow limits". At the "minimum test flow" rate to the lowest normal test flow rate as set forth in the following table, the meter shall register not less than 95 percent and not more than 101 percent of the water that actually passes through it. The meter shall show proper sensitivity when tested at the rate of flow set forth under "minimum test flow" as provided in section 500.5 of this Part.
Size (inches) |
Normal test flow limits (gallons per minute) |
Minimum test flow (gallons per minute) |
½ ....... | 1 to 15 ....... | ¼ |
½ × ¾ ....... | 1 to 15 ....... | ¼ |
5/8 ....... | 1 to 20 ....... | ¼ |
5/8 × ¾ ....... | 1 to 20 ....... | ¼ |
¾ ....... | 2 to 30 ....... | ½ |
1 ....... | 3 to 50 ....... | ¾ |
1 ½ ....... | 5 to 100 ....... | 1½ |
2 ....... | 8 to 160 ....... | 2 |
3 ....... | 16 to 315 ....... | 4 |
4 ....... | 28 to 500 ....... | 7 |
6 ....... | 48 to 1,000 ....... | 12 |
(b) Current type.
The registration on the meter dial shall indicate the quantity recorded to be not less than 98 percent nor more than 102 percent of the water actually passed through the meter while it is being tested at any rate of flow within the limits specified herein under "normal test flow limits". The meter shall show proper sensitivity when tested at the rate of flow set forth under "minimum test flow" as provided in section 500.5 of this Part.
Size (inches) |
Normal test flow limits (gallons per minute) |
Minimum test flow (gallons per minute) |
1 ½ ....... | 12 to 100 ....... | 1½ |
2 ....... | 35 to 100 ....... | 30 |
3 ....... | 40 to 250 ....... | 35 |
4 ....... | 50 to 500 ....... | 45 |
5 ....... | 75 to 90 ....... | 70 |
6 ....... | 90 to 1,200 ....... | 85 |
8 ....... | 100 to 1,500 ....... | 90 |
10 ....... | 125 to 2,000 ....... | 110 |
12 ....... | 150 to 2,800 ....... | 140 |
(c) Compound type.
Size (inches) | Gallons per minute |
1 ½ ....... | 20 |
2 ....... | 20 |
3 ....... | 30 |
4 ....... | 30 |
6 ....... | 40 |
8 ....... | 75 |
10 ....... | 100 |
12 ....... | 620 |
Size, main meter (inches) |
Normal test flow limits (gallons per minute) |
Minimum test flow (gallons per minute) | |
1 ½ ....... | 2 to | 100 ....... | ½ |
2 ....... | 2 to | 160 ....... | ½ |
3 ....... | 4 to | 320 ....... | 1 |
4 ....... | 6 to | 500 ....... | 1½ |
6 ....... | 10 to | 1,000 ....... | 3 |
8 ....... | 16 to | 1,600 ....... | 4 |
10 ....... | 32 to | 2,300 ....... | 8 |
12 ....... | 32 to | 3,100 ....... | 14 |
(d) Fire-service type.
Size (inches) | Gallons per minute |
3 ....... | 40 |
4 ....... | 60 |
6 ....... | 130 |
8 ....... | 210 |
10 ....... | 300 |
12 ....... | 620 |
Size (inches) |
Normal test flow limits (gallons per minute) |
Minimum test flow (gallons per minute) |
3 ....... | 8 to 400 ....... | 2 |
4 ....... | 8 to 700 ....... | 2 |
6 ....... | 16 to 1,600 ....... | 4 |
8 ....... | 28 to 2,800 ....... | 7 |
10 ....... | 48 to 4,400 ....... | 12 |
12 ....... | 48 to 6,400 ....... | 12 |