BS 3445-1:1992

Committees responsible
Foreword
Section 1. General
1.1 Scope
1.2 Definitions
Section 2. Trough bodies
2.1 Design: general requirements
2.2 Concrete troughs
2.3 Galvanized steel troughs
2.4 Spray moulded glass reinforced cement (GRC) troughs
2.5 Polyethylene troughs
2.6 Test for watertightness and rigidity of completed
     trough
2.7 Marking and information
Section 3. Water fittings and service box
3.1 General
3.2 Materials
3.3 Design and construction
Appendices
A Method for determination of toluene extract of
     carbon black
B Method of test for impact resistance
C Method of test for tensile strength and elongation
     at break tests
Tables
1 British Standards for cement in concrete troughs
2 Cementitious components
3 Minimum number of stiffeners required for
     galvanized steel troughs
4 Minimum dimensions for split tube used for top edge
     stiffening
5 British Standards for cement in GRC troughs
6 GRC for trough bodies
7 Wall and base thickness for polyethylene troughs
8 British Standards for water fittings for troughs
9 British Standards for supply or distribution pipes,
     and pipe fittings, to troughs
10 Types of float operated valves for various water
     pressures
11 Position of float operated valves
Figures
1 Top edge protection of galvanized steel troughs
2 Rim sections
Index

Requirements for water troughs and for the associated water pipes and fittings.

This Part of BS 3445 specifies requirements for the bodies of agricultural water troughs for holding drinking water for livestock and for the associated water pipes and fittings, the water level being maintained by a float operated valve controlling a supply of water through a pipe.

Troughs of any suitable shape and of capacity between 60 L and 3 000 L inclusive are covered by this Part of BS 3445.

Section 2 deals with trough bodies and section 3 deals with the water fittings and service box.

NOTE The titles of the publications referred to in this standard are listed on the page 12.