Stopper, with 1 hole, 5 mm dia, Size of 3, solid bottom, Colour: Blue, recommended by ASTM std, neoprene rubber, use petroleum products, inorganic acids, oil resistance, suitable for temp up to 250 deg F/120 deg C, Size: 18mm, Top 24mm, Length 25mm
Stopper, with 2 hole, 4 mm dia, size of 1, solid bottom, Colour: Blue, recommended by ASTM std, neoprene rubber, use petroleum products, inorganic acids, oil resistance, suitable for temp up to 250 deg F/120 deg C, Size: 14mm, Top 19mm, Length 25mm
Cork Stopper, function as a closure for bottles, vials, laboratory vessels and other openings, They are effective for both liquid and solid mediums and offer light weight, Length: 20 mm, Top Diameter: 16 mm, Bottom Diameter: 11mm, Stopper No.: no.4
Flask Volumetric with Glass Stopper Class - B, 50 ml, Borosilicate glass graduation mark, fitted with solid glass stopper, in compliance with ASTM-E288 standard.
Volumetric flask, made of high quality, heavy duty, Amber, Material: borosilicate 3.3 glass, Class A, White printed specifications, with a chemically resistant, interchangeable 10/19 polypropylene stopper, Size: 4.6in tall, neck measures 0.5in in diameter and is 2in length, 25ml
Stopper, with 2 hole, 5 mm dia, Size of 2, solid bottom, Colour: Blue, recommended ASTM std, neoprene rubber, use with petroleum products, inorganic acids, oil resistance, suitable for temp up to 250 deg F/120 deg C, Size: 16mm, Top 20mm, Length 25mm
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