Stopper, with 2 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
Flask Volumetric with Glass Stopper Class - B, 100 ml, Borosilicate glass graduation mark, fitted with solid glass stopper, in compliance with ASTM-E288 standard.
Stopper, solid bottom, Size of 3, Colour: Blue, ASTM std, from long lasting neoprene rubber, use with petroleum products, minerals, oils, inorganic acids and bases, oil resistance, suitable for temp up to 250 deg F/120 deg C, Size: 18mm, Top 24mm, Length 25mm
Volumetric flask, high quality, heavy duty Amber, Material: borosilicate 3.3 glass, Class A, White printed specifications, Fitted with a chemically resistant, interchangeable 12/21 polypropylene stopper, size: 5in tall, neck measures 0.65in in diameter and is 2.75in length, 50ml
Stopper, with 1 hole, 5 mm dia, Size of 4, 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: 20mm, Top 26mm, Length 25mm
Stopper, with 2 hole, 5 mm dia, Size of 4, 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: 20mm, Top 26mm, Length 25mm
Volumetric flask made of high quality, heavy duty Amber, Material: borosilicate 3.3 glass, Class A, White printed specifications, chemically resistant, interchangeable 14/23 polypropylene stopper, Size: 7.25in tall, neck measures 0.75in in diameter and is 3.4in in length, 100ml
Flask Volumetric with Glass Stopper Class - B, 250 ml, Borosilicate glass graduation mark, fitted with solid glass stopper, in compliance with ASTM-E288 standard.
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