DURAN® Volumetric Flasks


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DURAN® VOLUMETRIC FLASKS

Achieving precision through quality

Volume measurement – a routine laboratory procedure. All the more important is the assurance of quality in the associated instrumentation over the long term, from volumetric flasks to stoppers. From one day to the next, with each analysis. DURAN® volumetric instruments have the same attributes as DURAN® laboratory glassware: They are robust, virtually inert and exceptionally resistant to high temperatures. Outstanding corrosion protection also guarantees they are particularly cost effective.

End-to-end production from a single source

Stringent specifications apply for the selection of raw materials and mixture preparation for the borosilicate glass 3.3. In addition, because DURAN® laboratory glassware is manufactured exclusively in-house, high quality is guaranteed. This applies to every manufacturing phase – from glass melting through to calibration. The result: outstanding precision during volumetric measurement.

now with printed graduation mark

SCREEN PRINT LABEL FOR DURAN® VOLUMETRIC FLASKS

Volumetric flask, accuracy class A, USP <31> conform

Volumetric flask, accuracy class A, with individual certificate

Volumetric flask, accuracy class A, with batch certificate

United States Pharmacopoeia – the product satisfies the requirements specified in USP <31>
Certificated
Batch number, e.g. 15.01
Nominal volume in ml
±0.08ml Accuracy tolerance – the deviation of the nominal volume must be no greater than this value which is specified in standards
Reference temperature – the temperature at which a volumetric instrument must achieve the nominal volume (20°C) stated on it
Country of origin
Accuacy class – denotes the accuracy limit
NS 14/23 Standard taper joint size
ISO 1042 Standard designation
Conformity mark – verifies compliance with the requirements of the German weights and measures regulation and applicable standards
AAA-0001 Individual number (laser-etched onto the base)
DD.MM.YY Production date (laser-etched onto the base)

FEATURES & BENEFITS:

  • Achieves precision due to better visibility of the printed graduation mark
  • Print is highly resistant to chemicals
  • Comply with the requirements of ISO 1042
  • With new PE stopper – can be ordered separately
  • Well-known DURAN® borosilicate glass 3.3 quality due to high internal raw material requirements
  • Increased service life and cost-effectiveness
  • Retraceable
  • Auditable

OVERVIEW OF CERTIFICATES

Conformity mark DE-M

Volumetric instruments that comply with the requirements of applicable standards (e.g. the German weights and measures regulation) are labelled accordingly with “DE-M”. The “DE-M 18” mark is made up of the elements DE (which stands for “Deutschland”), M (which stands for “Metrologie” (metrology)), and the year number 18 (2018, the year in which the measuring instrument was labelled).

Batch certificate

Volumetric flasks and measuring and mixing cylinders with a batch number and accuracy class A are supplied with a batch certificate. This certificate documents the mean value obtained from measuring the batch in question, the standard deviation and the day of issue. The batch certificates can also be retrieved online. The batch number consists of four digits, e.g.: The first two numbers specify the production year, and the following two numbers specify the batch.

Individual certificate

Volumetric flasks which are numbered individually, are supplied with an individual certificate. The individual number is permanently laser-etched onto the base of the volumetric flask and is entered on the corresponding certificate. The volume measured for the corresponding volumetric flask, the measurement uncertainty and the day of issue are documented on this certificate. The individual number is a consecutive number and comprises three letters and a four digit number, for example: AAA-0001.

USP individual certificate

The volumetric flasks are labelled with an individual number. This is permanently laser-etched onto the base of the volumetric flask and is entered on the corresponding certificate. The accuracy limits for USP <31> compliant volumetric flasks are stricter than flasks conforming to ISO 1042 and therefore satisfy the requirements of the United States Pharmacopoeia (USP). The volume measured for the corresponding volumetric flask, the measurement uncertainty and the day of issue are documented on this certificate.

UKAS certificate

Our DURAN® volumetric gauges already meet the highest standards of accuracy, yet DURAN® now also provides a new range of volumetric gauges and graduated cylinders with a UKAS single certificate. This new volumetric instrument product line is tested and calibrated to the requirements of United Kingdom Accreditation Services (UKAS) and complies with ISO 17025, a standard for global comparability of test and calibration results.

Ordering Information

Volumetric Flask Class A without certificate of conformity

DURAN® Volumetric Flask, class A, without certificate of conformity

with scribed graduation mark and octagonal stopper from PE, white printed image, with batch certificate, without certificate of conformity

Calibration is based on the poured in volume (“In”) at a + 20 °C reference temperature. The volume content tolerances conform to accuracy class A, the accuracy limits of the German weights and measures regulations and DIN and ISO specifications.

Typical applications: precise measurement of specified liquid amounts, preparation and storage of standard solutions.

Cat. No. Capacity
(ml)		 d(OD)
(mm)		 h
(mm)		 Neck Stopper
size		 Accuracy unit
(ml)		 Pack
Unit
216780704 5 22 70 7 ± 1 7/16 0.025 2
216780807 10 27 90 7 ± 1 7/16 0.025 2
216781203 20 39 110 9 ± 1 10/19 0.04 2
216781409 25 40 110 9 ± 1 10/19 0.04 2
216781709 50 50 140 11 ± 1 12/21 0.06 2
216782405 100 60 170 13 ± 1 12/21 0.1 2
216782508 100 60 170 13 ± 1 14/23 0.1 2
216783204 200 75 210 15.5 ± 1.5 14/23 0.15 2
216783607 250 80 220 15.5 ± 1.5 14/23 0.15 2
216784406 500 100 260 19 ± 2 19/26 0.25 2
216785402 1000 125 300 23 ± 2 24/29 0.4 2
216786304 2000 160 370 27.5 ± 2.5 29/32 0.6 2
216787309 5000 215 475 38 ± 3 34/35 1.2 1

Volumetric Flask Class A batch certificate

DURAN® Volumetric Flask, class A, batch certificate

with scribed graduation mark and ergonomic polyethylene stopper, blue printed image, with batch certificate and certificate of conformity

Calibration is based on the poured in volume (“In”) at a + 20 °C reference temperature. The volume content tolerances conform to accuracy class A, the accuracy limits of the German weights and measures regulations and DIN and ISO specifications.

Typical applications: precise measurement of specified liquid amounts, preparation and storage of standard solutions.

Cat. No. Capacity
(ml)		 d(OD)
(mm)		 h
(mm)		 Neck Stopper
size		 Accuracy unit
(ml)		 Remarks Pack
Unit
246780159 1 13 65 7 ± 1 7/16 0.025 2
246780253 2 17 70 7 ± 1 7/16 0.025 2
246780956 5 W 22 70 9 ± 1 10/19 0.04 wide neck 2
246781052 10 W 27 90 9 ± 1 10/19 0.04 wide neck 2
246781258 20 39 110 9 ± 1 10/19 0.04 2
246781455 25 40 110 9 ± 1 10/19 0.04 2
246781755 50 50 140 11 ± 1 12/21 0.06 2
246782451 100 60 170 13 ± 1 12/21 0.1 2
246782554 100 60 170 13 ± 1 14/23 0.1 2
246783259 200 75 210 15.5 ± 1.5 14/23 0.15 2
246783653 250 80 220 15.5 ± 1.5 14/23 0.15 2
246784452 500 100 260 19 ± 2 19/26 0.25 2
246785457 1000 125 300 23 ± 2 24/29 0.4 2
246785551 1000 W 125 300 27.5 ± 2.5 29/32 0.6 wide neck 2
246786359 2000 160 370 27.5 ± 2.5 29/32 0.6 2
246787355 5000 215 475 38 ± 3 34/35 1.2 1

Volumetric Flask Class A individual certificate

DURAN® Volumetric Flask, class A, individual certificate

with scribed graduation mark and ergonomic polyethylene stopper, blue printed image, with individual certificate and certificate of conformity

Calibration is based on the poured in volume (“In”) at a + 20 °C reference temperature. The volume content tolerances conform to accuracy class A, the accuracy limits of the German weights and measures regulations and DIN and ISO specifications.

Typical applications: precise measurement of specified liquid amounts, preparation and storage of standard solutions.

Cat. No. Capacity
(ml)		 d(OD)
(mm)		 h
(mm)		 Neck Stopper
size		 Accuracy unit
(ml)		 Remarks Pack
Unit
246790151 1 13 65 7 ± 1 7/16 0.025 2
246790254 2 17 70 7 ± 1 7/16 0.025 2
246790957 5 W 22 70 9 ± 1 10/19 0.04 wide neck 2
246791053 10 W 27 90 9 ± 1 10/19 0.04 wide neck 2
246791259 20 39 110 9 ± 1 10/19 0.04 2
246791456 25 40 110 9 ± 1 10/19 0.04 2
246791756 50 50 140 11 ± 1 12/21 0.06 2
246792452 100 60 170 13 ± 1 12/21 0.1 2
246792555 100 60 170 13 ± 1 14/23 0.1 2
246793251 200 75 210 15.5 ± 1.5 14/23 0.15 2
246793654 250 80 220 15.5 ± 1.5 14/23 0.15 2
246794453 500 100 260 19 ± 2 19/26 0.25 2
246795458 1000 125 300 23 ± 2 24/29 0.4 2
246795552 1000 W 125 300 27.5 ± 2.5 29/32 0.6 wide neck 2
246796351 2000 160 370 27.5 ± 2.5 29/32 0.6 2
246797356 5000 215 475 38 ± 3 34/35 1.2 1

Volumetric Flask Class A USP conformity <31> USP individual certificate

DURAN® Volumetric Flask, class A, USP conformity <31>, USP individual certificate

with scribed graduation mark and ergonomic polyethylene stopper, blue printed image, with USP individual certificate and certificate of conformity

Calibration is based on the poured in volume (“In”) at a + 20 °C reference temperature. The volume content tolerances conform to accuracy class A, the accuracy limits of the German weights and measures regulations and DIN and ISO specifications.

Typical applications: precise measurement of specified liquid amounts, preparation and storage of standard solutions.

Cat. No. Capacity
(ml)		 d(OD)
(mm)		 h
(mm)		 Neck Stopper
size		 Accuracy unit
(ml)		 Remarks Pack
Unit
246710958 5 W 22 70 9 ± 1 10/19 0.02 wide neck 2
246711054 10 W 27 90 9 ± 1 10/19 0.02 wide neck 2
246711457 25 40 110 9 ± 1 10/19 0.03 2
246711757 50 50 140 11 ± 1 12/21 0.05 2
246712556 100 60 170 13 ± 1 14/23 0.08 2
246713252 200 75 210 15.5 ± 1.5 14/23 0.1 2
246713655 250 80 220 15.5 ± 1.5 14/23 0.12 2
246714454 500 100 260 19 ± 2 19/26 0.2 2
246715459 1000 125 300 23 ± 2 24/29 0.3 2
246716352 2000 160 370 27.5 ± 2.5 29/32 0.5 2

Volumetric Flask Class B

DURAN® Volumetric Flask, class B

with scribed graduation mark and ergonomic polyethylene stopper, white printed image

Calibration is based on the poured in volume (“In”) at a + 20 °C reference temperature. The volume content tolerances conform to accuracy class B, the accuracy limits of the German weights and measures regulations and DIN and ISO specifications.

Typical applications: precise measurement of specified liquid amounts, preparation and storage of standard solutions.

Cat. No. Capacity
(ml)		 d(OD)
(mm)		 h
(mm)		 Neck Stopper
size		 Accuracy unit
(ml)		 Remarks Pack
Unit
246700957 5 W 22 70 9 ± 1 10/19 0.08 wide neck 2
246701053 10 W 27 90 9 ± 1 10/19 0.08 wide neck 2
246701259 20 39 110 9 ± 1 10/19 0.08 2
246701456 25 40 110 9 ± 1 10/19 0.08 2
246701756 50 50 140 11 ± 1 12/21 0.12 2
246702555 100 60 170 13 ± 1 14/23 0.2 2
246703251 200 75 210 15.5 ± 1.5 14/23 0.3 2
246703654 250 80 220 15.5 ± 1.5 14/23 0.3 2
246704453 500 100 260 19 ± 2 19/26 0.5 2
246705458 1000 125 300 23 ± 2 24/29 0.8 2
246706351 2000 160 370 27.5 ± 2.5 29/32 1.2 2
246707356 5000 215 475 38 ± 3 34/35 2.4 1

Volumetric Flask Class A amber batch certificate

DURAN® Volumetric Flask, class A, amber, batch certificate

with scribed graduation mark and ergonomic polyethylene stopper, white printed image, with batch certificate and certificate of conformity

Calibration is based on the poured in volume (“In”) at a + 20 °C reference temperature. The volume content tolerances conform to accuracy class A, the accuracy limits of the German weights and measures regulations and DIN and ISO specifications.

Typical applications: precise measurement of specified liquid amounts, preparation and storage of standard solutions.

Cat. No. Capacity
(ml)		 d(OD)
(mm)		 h
(mm)		 Neck Stopper
size		 Accuracy unit
(ml)		 Remarks Pack
Unit
246760954 5 W 22 70 9±1 10/19 0.04 wide neck 2
246761059 10 W 27 90 9±1 10/19 0.04 wide neck 2
246761256 20 39 110 9±1 10/19 0.04 2
246761453 25 40 110 9±1 10/19 0.04 2
246761753 50 50 140 11±1 12/21 0.06 2
246762458 100 60 170 13±1 12/21 0.1 2
246762552 100 60 170 13±1 14/23 0.1 2
246763257 200 75 210 15.5±1.5 14/23 0.15 2
246763651 250 80 220 15.5±1.5 14/23 0.15 2
246764459 500 100 260 19±2 19/26 0.25 2
246765455 1000 125 300 23±2 24/29 0.4 2
246766357 2000 160 370 27.5±2.5 29/32 0.6 2

Volumetric Flask Class A amber individual certificate

DURAN® Volumetric Flask, class A, amber, individual certificate

with scribed graduation mark and ergonomic polyethylene stopper, white printed image, with individual certificate and certificate of conformity

Calibration is based on the poured in volume (“In”) at a + 20 °C reference temperature. The volume content tolerances conform to accuracy class A, the accuracy limits of the German weights and measures regulations and DIN and ISO specifications.

Typical applications: precise measurement of specified liquid amounts, preparation and storage of standard solutions.

Cat. No. Capacity
(ml)		 d(OD)
(mm)		 h
(mm)		 Neck Stopper
size		 Accuracy unit
(ml)		 Remarks Pack
Unit
246770955 5 W 22 70 9 ± 1 10/19 0.04 wide neck 2
246771051 10 W 27 90 9 ± 1 10/19 0.04 wide neck 2
246771257 20 39 110 9 ± 1 10/19 0.04 2
246771454 25 40 110 9 ± 1 10/19 0.04 2
246771754 50 50 140 11 ± 1 12/21 0.06 2
246772459 100 60 170 13 ± 1 12/21 0.1 2
246772553 100 60 170 13 ± 1 14/23 0.1 2
246773258 200 75 210 15.5 ± 1.5 14/23 0.15 2
246773652 250 80 220 15.5 ± 1.5 14/23 0.15 2
246774451 500 100 260 19 ± 2 19/26 0.25 2
246775456 1000 125 300 23 ± 2 24/29 0.4 2
246776358 2000 160 370 27.5 ± 2.5 29/32 0.6 2

Stopper PE

DURAN® Polyethylene Stoppers

DURAN® polyethylene stoppers are ergonomically shaped. This ensures that measuring flasks, mixing cylinders and storage bottles can be easily opened and securely closed. Furthermore, a taper with several grooves ensures the perfect seal. The standard taper joint size can be easily and quickly assigned using stopper inserts with different colours.

Cat. No. d1(OD)
(mm)		 d2(OD)
(mm)		 h
(mm)		 Colour Stopper
size		 Pack
Unit
292050201 29.5 17.5 28 blue 7/16 10
292050304 32.5 20 32 green 10/19 10
292050407 36.5 22 35 violet 12/21 10
292050604 40 25 38 yellow 14/23 10
292050707 44.5 31 42 blue 19/26 10
292050801 51.5 38 46 green 24/29 10
292050904 61 45.5 50 red 29/32 10
292051103 71 54.5 54 orange 34/45 1
292051206 81.5 65.5 60 brown 45/40 1

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