Potrebujeme váš súhlas na využitie jednotlivých dát, aby sa vám okrem iného mohli ukazovať informácie týkajúce sa vašich záujmov. Súhlas udelíte kliknutím na tlačidlo „OK“.
Standard Specification for Laboratory Glass Graduated Burets
Automaticky preložený názov:
Štandardné špecifikácie pre laboratórne sklo Absolvent Burets
NORMA vydaná dňa 1.11.2007
Označenie normy: ASTM E287-02(2007)
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.11.2007
Kód tovaru: NS-46178
Počet strán: 3
Približná hmotnosť: 9 g (0.02 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Keywords:
burets, glass, graduated, ICS Number Code 71.040.20 (Laboratory ware and related apparatus)
1. Scope | ||||||||||||||
1.1 This specification covers requirements for glass burets of precision and general-purpose grades suitable for laboratory use. 1.1.1 Class A Each buret of precision grade may be marked with the letter "A" to signify compliance with applicable construction and accuracy requirements in Table 1 and Table 2 . Each buret may be marked with a permanent serial number at the option of the manufacturer. 1.1.2 Class B General purpose burets are of the same basic design as Class A burets. However, volumetric tolerances for Class B burets shall be within twice the specified range allowed for Class A burets. These burets need not be marked with their class designation or serial number. SeeTable 1 and Table 3 for tolerances and dimensional requirements. Note 1The Twelfth General (International) Conference on Weights and Measures redefined the litre as a "special name for the cubic decimetre," but agreed to permit continuance of the terms litre, millilitre, and mL, except in association with measurements of the highest precision. For volumetric glassware the difference between the old and new meanings of litre is negligible. Therefore, either mL or cm3 may be marked on ware covered by this standard. 1.1.3 Product with a stated capacity not listed in this standard may be specified Class A Tolerance when product conforms to the tolerance range of the next smaller volumetric standard product listed in Table 1 . |
||||||||||||||
2. Referenced Documents | ||||||||||||||
|
Posledná aktualizácia: 2024-05-15 (Počet položiek: 2 900 316)
© Copyright 2024 NORMSERVIS s.r.o.