SPECIFICATION FOR GALVANIZED MILD STEEL FIRE BUCKET
Third Reprint SEPTEMBER 2009
(Including Amendment No. 1 & 2)
UDC 614.843.5 [669.141.24 : 669.586]
© Copyright 1974
BUREAU OF INDIAN STANDARDS
MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG
NEW DELHI 110002
SPECIFICATION FOR GALVANIZED MILD STEEL FIRE BUCKET
Fire Fighting Sectional Committee, BDC 22
TABLE 1 PAINTS FOR PAINTING OF FIRE BUCKETS
Sl No. Purpose Reference to Indian Standards
When Oil Paint Finish is Required When Enamel Finish is Required
(1) (2) (3) (4)
i) White paints for painting the inside IS : 641-1964* IS : 2932-1964†
ii) Red paints for painting the outside IS : 120-1962‡
iii) Black paint for painting handles, ears and letters IS : 128-1962§
*Specification for ready mixed paint, brushing, finishing, interior, semi-gloss for general purposes, white (revised).
†Specification for enamel, synthetic, exterior, Type 1 (a) under-coating, (b) finishing, colour as required.
‡Specification for ready mixed paint, brushing, finishing, semi-gloss, for general purposes, to Indian Standard colours.
§Specification for ready mixed paint, brushing, finishing, semi-gloss, for general purposes, black (revised).
The shade of the outside colour shall be fire red conforming to Shade No. 536 of IS: 5-1978‡.
3. SHAPE AND ESSENTIAL DIMENSIONS
The shape and the essential dimensions of fire bucket shall conform to those shown in Fig. 1.
Body—The body shall be in two halves which shall be joined together by butt welding. The top rim of the body shall be wired and uniformly beaded. The beading shall be fully formed without gaps. The thickness of body shall be 1 mm and diameter of beading, wire 3·55 mm.
*Specification for structural steel (standard quality) (fourth revision).
†Specification for mild steel wire for general engineering purposes (revised).
‡Colours for ready mixed paints (third revision).
Fig. 1 Fire Bucket Shape and Essential Dimensions
Fig. 1 Fire Bucket—Shape and Essential Dimensions
Bottom—The bottom shall be dished and shall be joined to the body by butt welding so that there is no raw edge or crevice on the inside of the bucket. The thickness of the bottom sheet shall be 1 mm.
Ears—The ears shall be made of mild steel sheet and shall be fitted to the body at the top by means of welding with the flat head on the side. The thickness of sheet for ears shall be 2·8 mm.
Top Handle—The top handle shall be of mild steel rod of 10 mm in diameter with its ends bent up as shown in Fig. 1.
Bottom Handle—The bottom ‘handle shall be of mild steel rod of 10 mm in diameter and it shall be joined to the bottom by welding as shown in Fig. 1. The grip shall have no sharp edges.
General—All gas welds shall be free from porosity, blow holes and brittleness.
All parts of the bucket shall be finished smooth and sharp edges rounded off.
The bucket shall be galvanized after manufacture as per IS : 2629-1966*. The thickness of coating of zinc conforming to IS 13229:1991 Specification for zinc for galvanizing.
Alternately, it may also be galvanized of lead tin alloy to a thickness of not less than 0.012 mm.
Bucket shall, in addition to galvanizing, be painted with two coats of white paint on the inside and two coats of red paint on the outside (see also 2.4). The handles and the ears shall be painted with two coats of black paint.
The word ‘FIRE’ shall be painted in black centrally on the outside; its letters shall be 75 mm high, and approximately 12 mm thick.
6. PERFORMANCE REQUIREMENTS
The bucket shall be water tight and tested for leakage as given in 6.1.1 and 6.1.2.
The bucket shall be filled with water to the brim and kept for 15 minutes. The bucket shall not show any sign of leakage during this period.
A water tank of suitable size and full of water shall be used for conducting the test. The dry empty bucket with its top facing upwards shall be pressed down the water vertically taking care that the top is at least 6 mm above the water level. It shall be observed whether any water
*Recommended practice for hot-dip galvanizing of iron and steel.
gets into the bucket from the bottom or sides of the bucket. If any water enters the bucket, it shall be considered to have failed the test.
The bucket shall be withdrawn, reversed (with top downwards) and again pressed down the water vertically without agitating the water. Should any air bubble be seen escaping through the water, the bucket shall be considered to have failed the test.
7. INSPECTION AND MANUFACTURER’S CERTIFICATE
The purchaser or his representative shall, if desired, be granted facilities for inspection of finished goods prior to despatch at the manufacturer’s works.
8. SCALE OF SAMPLING AND CRITERION FOR CONFORMITY
Lot—In any consignment, all the buckets from the same batch of manufacture shall be grouped together to constitute a lot.
Sample Size—The number of buckets to be selected from the lot shall depend on the size of the lot and shall be in accordance with col (1) and (2) of Table 2. These buckets shall be selected at random from at least 10 percent of the packages subject to a minimum of 3; equal number of buckets being selected from each such package. If the number of packages is less than 3, buckets from all the packages shall be selected.