GET BIS CERTIFICATION FOR DOUBLE-ACTING SPRING HINGES IS 453:1993
Double action spring hinges allow a door to open 180 degrees in either direction. The spring action returns door to center closed position. These hinges are great for any door you want to walk through in both directions and have the door come back to center automatically.
BIS is a statutory institution established under the Bureau of Indian Standards Act,1986 to promote harmonious development of the activities of standardization, marking and quality certification of goods and attending to connected matters in the country.
Double-acting spring hinges product has been specified in IS 453:1993 by Bureau of Indian Standards.
SCOPE :
· This standard lays down the requirements for material, dimensions manufacture, finish and tests of double-acting spring hinges and corresponding blank hinges used generally for swingdoors.
REFERENCES :
List of Referred Indian Standards
· IS 280 :1978 Mild steel wire for general engineering purposes
· IS 292 :1983 Leaded brass ingots and castings
· IS 319 :1989 Free cutting brass bars, rods and sections
· IS 410 :1977 Cold rolled brass sheet, strip and foil
· IS 4454 : Part 1 :1981 Steel wires for cold formed springs :Part 1 Patented and cold drawn steel wires -Unalloyed
· IS 4905 :1968 Methods for random sampling
· IS 7608 :1987 Phosphor bronze wire for general engineering purposes
RAW MATERIALS :
·
Mild Steel Sheets and Plates- Grade 0 of IS 1079
and shall meet to
Cl. 4.1 of IS 453: 1993
·
Mild Steel Wire- Minimum 40Kgf/Cm2 Tensile Strength
conforming to 1/4H grade of IS 280 and shall comply to Cl. 4.2 of
IS 453: 1993
· Cast Brass- as per IS 292
· Brass sheets- Alloy designation CuZn40 as per IS 410
·
Brass Rods- Minimum Cu content 60 % and Tensile
Strength
40Kgf/Cm2, conforming to IS 319
· Steel Wire of spring- IS 4454-1
· Phosphorus Bronze wire- Grade 1 of IS 7608
TESTING PARAMETERS :
· Raw Material
· Dimensions
· Manufacture
· Finish
· Performance Test
POSSIBLE TESTS IN A DAY :
· All tests
BIS CERTIFICATION IN INDIA
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