chemicals and detergents purchase tender , at bundelkhand sahakari dugdh sangh maryadit , sagar , description , liquid caustic soda lye sodium hydroxide as naoh ( 0% ) : 48 . 1100 sodium carbonate as na2co3:0 . 1600 chloride as nacl ( 0% ) :0 . 0100 sulphate as na2so4: 0 . 0030 silica as sio2 ( 0% ) 0 . 0008 iron as fe ( ppm ) : 5 . 5000 copper as cu ( ppm ) : 0 . 0040 manganese as mn ( ppm ) : 0 . 0040 chlorate as naclo3: 8 . 4000 matter insolubles ( 0% ) 0 . 00080 naoh in gpl ( g/l ) : 718 . 0000 specific gravity : 1 . 492500 temperature ( oc ) :41 . 0000 , nitric acid strength 52 -54% , clean and almost colorless free from sediment and other visible impurities , shall be chloride free . is - 264 - 1976 . to be supplied in loose . the specific gravity must be within 1 . 310 to 1 . 325 , iodophore available lodine 1 . 6% min . , liquid soap as per bis 4956-1977 18 type -3 standard . active matter min20 , clear point at 10c , max ph of 1% solution -at 30c 6 to 8 matter insluble in water nil , colour transparent browinish free from unpleasant odour . supply in 200 kg . plastic drums . ( non returnable ) , amyl alcohol ( milk testing grade ) clear and colourless . sp . gravity at 27c 0 . 807 to 0 . 809 ( as per is-360-1964 grade 1 ) comparison with iso amyl alcohol of e merk/ranbaxy/glaxo for fat , it should not show not more/less than 0 . 1% variation in fat % of milk of 1 . 5% to 7% alcohol should be supplied in 200 kg . heavy duty plastic drums . ( non returnable )