ULC 661
- Standard for Overfill Protection Devices for Flammable and Combustible Liquid Storage Tanks (CAN/ULC S661-10)
- standard by Underwriters Laboratories of Canada, 12/01/2010
- Category: ULC
$166.00
$83.00
The overfill protection devices shall be designated as Class I or II in accordance with the liquids they are intended to contain, as listed below.
A Class I devices shall be suitable for use with flammable liquids and combustible liquids, described in Clause 1.1.1; and
B Class II devices shall be proven suitable for use with the specific liquid(s) for which the device is intended, by additional testing in accordance with Section 5.4, Immersion Test, using the specific liquid(s) .
An overfill protection device shall function as one of the following:
A Automatic sensing device for interconnection with shutoff equipment or alarm devices acceptable to the authority having jurisdiction;
B Automatic overfill shutoff device of float valve or other mechanical type; or
C Overfill alarm devices of the audible or combined audible and visual types.The shutoff device referred to in Sub-clause 1.4 (B) shall operate according to its type of application:
*Pressure filled; or
*Gravity filled.
All of our standards document are available in PDF (Portable Document Format), an electronic, downloadable format.You will be able to download the file in your account downloads.
After purchasing, you have the ability to assign each license to a specific user.
At any time, you are permitted to make printed copies for your and your members' reference use.