Pyrex® Volumetric Flask, Class A, USP/ISO/DIN tolerances

Volumetric flasks are available in two different accuracy classes: Class A and Class B. The two classes differ in the accuracy of measurement with Class A being the highest accuracy, and Class B is approximately half that of Class A. The base of each volumetric flask is laser etched with a unique batch number and date of manufacture that can be used to download a batch certificate from our website.

Pyrex® Volumetric Flask, Class A, USP/ISO/DIN tolerances

Product Overview

Complies with ISO 1042 and DIN 12664
Manufactured from borosilicate glass 3.3
Calibrated to the tolerance required by the United States Pharmacopoeia (USP) which is tighter than those of ISO/DIN standards
Each flask is laser etched with an individual serial number batch code and date of manufacture
Certificate available to download online by entering the unique batch code, which can be found on the base of each flask
UKAS-certified volumetric flasks are available on request.
With Polyethylene stopper
Inscriptions in white enamel
20mL and 5000mL sizes are supplementary to DIN range.

Catalog No	Capacity (mL)	Diameter (mm)	Height (mm)	Stopper Size	Tolerance (mL)
3151/01	1	13	65	7/16	± 0.020
3151/02	2	17	65	7/16	± 0.020
3151/04	5	22	70	10/19	± 0.020
3151/06	10	27	90	10/19	± 0.020
3151/08	20	39	110	10/19	± 0.03
3151/10	25	40	110	10/19	± 0.03
3151/12	50	50	140	12/21	± 0.05
3151/14	100	60	170	14/23	± 0.08
3151/16	200	75	210	14/23	± 0.10
3151/18	250	80	220	14/23	± 0.12
3151/20	500	100	260	19/26	± 0.20
3151/22	1000	125	300	24/29	± 0.30
3151/24	2000	160	370	29/32	± 0.50
3151/26	5000	215	475	34/35	± 1.00

Available Options