Standard Specification for Laboratory Glass Graduated Burets
NORMA vydaná dňa 1.7.2019
Designation standards: ASTM E287-02(2019)
Publication date standards: 1.7.2019
The number of pages: 3
Approximate weight : 9 g (0.02 lbs)
Country: American technical standard
Kategória: Technické normy ASTM
This specification covers requirements for glass burets of precision and general-purpose grades suitable for laboratory use. Burets are classified as: class A - precision grade buret, and class B - general purpose burets. Burets shall be calibrated to deliver the intended volume at 20°C. No after-drainage period is allowed. Self-zeroing burets shall have an ungraduated, tapered, interior extension that terminates with an overflow orifice. Burets may be equipped with a filling tube. All burets shall have permanently attached stopcocks. The stopcock´s handle shall be located to the right. Stopcock plugs shall be provided with a retaining device.
Keywords:
burets, glass, graduated,, ICS Number Code 71.040.20 (Laboratory ware and related apparatus)