Administrative Rules of Montana
Department 4 - AGRICULTURE
Chapter 4.12 - AGRICULTURAL SCIENCES DIVISION
Subchapter 4.12.7 - Anhydrous Ammonia Rules
Rule 4.12.705 - MANUFACTURER'S MARKING REQUIREMENTS ON CONTAINERS AND SYSTEMS
Universal Citation: MT Admin Rules 4.12.705
Current through Register Vol. 18, September 20, 2024
(1) Each container or system covered in ARM 4.12.719, ARM 4.12.720, ARM 4.12.721, ARM 4.12.722, shall be marked as follows:
(a) With a mark identifying
compliance with and other markings required by the rules of the code under
which the container is constructed, with the capacity of the container in
pounds or gallons (U.S. Standards), with the working pressure in psig for which
the container is designed, and with the thickness of the shell and heads. This
information shall appear:
(i) on the container
and system nameplate on underground installations;
(ii) on the container on aboveground
installations.
(b) With
the name, address and phone number of the supplier of the system and the date
of manufacture. This information shall appear on the system nameplate for both
underground and aboveground containers.
(c) With markings indicating the maximum
level to which the container may be filled with liquid at temperatures between
20 degrees Fahrenheit (F) and 100 degrees F, except on containers provided with
fixed maximum level indicators or which are filled by weighing. Markings shall
be in increments of not more than 20 degrees F and shall appear on the system
nameplate or on the liquid level gauging device on both underground and
aboveground containers. Refrigerated storage tanks shall be exempt from these
requirements but shall be marked to show the maximum permissible liquid level,
see ARM 4.12.712.
(d) With the overall length and outside
diameter of the container. This information shall appear:
(i) on the system nameplate on underground
containers;
(ii) on the container
on aboveground containers.
(2) All main operating valves on permanently installed storage containers having a capacity of over 2000 water gallons shall be identified to show whether the valve is in liquid or vapor service. The method of identification shall be by label or color code as follows:
(a) the label LIQUID (or LIQUID VALVE) or
VAPOR (or VAPOR VALVE), as appropriate, shall be placed on or within twelve
inches of the valve by means of a stencil tag or decal; or
(b) liquid valves shall be painted orange and
vapor valves shall be painted yellow. The legend ORANGE-LIQUID or YELLOW-VAPOR
shall be displayed in at least one conspicuous place at each permanent storage
location. The legend shall have letters at least two inches high and shall be
placed against a contrasting background.
Sec. 80-10-503, MCA; IMP, Sec. 80-10-503, MCA;
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