Representative Image

BRAND BLAUBRAND ETERNA Measuring Flask, Class A, DE-M, 20 ml, NS 12/21, Boro 3.3, PP Stopper, Individual Certificate

Brand:BRAND

Ground size

Nominal capacity

Tolerance

Specifications

Compare models
Accuracy class
A
Ground size
NS 12/21
Material
Boro 3.3
Material closure
PP
Nominal capacity
20 ml
Standard
DIN EN ISO 1042
Tolerance
0,06 ± ml
Type of closure
Stopper
UNSPSC
41121804

$125.80

Inc. GST

Available soon

Product description

The BRAND BLAUBRAND ETERNA Measuring Flask is a high-precision flask designed for accurate liquid measurements in laboratory settings. Made from durable Boro 3.3 glass, it provides excellent resistance to thermal shock and chemicals. With a 20 ml capacity and a neck size of NS 12/21, this Class A flask comes with a PP stopper for secure closure. It is supplied with an individual certificate for quality assurance, ensuring precise and reliable measurements every time.

Key Features:

  • Brand: BRAND
  • Model: BLAUBRAND ETERNA Measuring Flask
  • Material: Boro 3.3 glass for thermal shock and chemical resistance
  • Capacity: 20 ml
  • Neck Size: NS 12/21
  • Stopper: PP stopper included for secure closure
  • Certification: Supplied with an individual certificate

This measuring flask is an essential piece of laboratory equipment, offering precision and durability for a wide range of scientific applications.



Frequently Asked Questions

1. What is the BRAND BLAUBRAND ETERNA Measuring Flask, Class A, DE-M, 20 ml, NS 12/21, Boro 3.3, PP Stopper, Individual Certificate used for?

It is a high-precision flask designed for accurate liquid measurements in laboratory settings. Made from durable Boro 3.3 glass, it provides excellent resistance to thermal shock and chemicals. With a 20 ml capacity and a neck size of NS 12/21, this Class A flask comes with a PP stopper for secure closure. It is supplied with an individual certificate for quality assurance, ensuring precise and reliable measurements every time.

2. Is this product suitable for accurate liquid measurements in laboratory settings?

Yes. It is designed for accurate liquid measurements in laboratory settings, and offers a capacity of 20 ml to support this kind of work.

3. What capacity does this product have?

It has a capacity of 20 ml.

4. What is this product made from and what features does it include?

It is made from boro 3.3 glass for thermal shock and chemical resistance. It also offers NS 12/21, PP stopper included for secure closure and an individual certificate.

Downloads

Compare similar models

Measuring flask, BLAUBRAND® ETERNA, Class A, DE-M, 20 ml, W, NS 12/21 Boro 3.3, PP stopper, individual certificate
Available soon
BRAND BLAUBRAND ETERNA Measuring Flask, Class A, DE-M, 20 ml, NS 12/21, Boro 3.3, PP Stopper, Individual Certificate

$125.80

Inc. GST

Manufacturer P/N

936846

Part Number

4.684 460

Manufacturer

BRAND

Ground size

NS 12/21

Volumetric flasks 50 ml, wide neck, NS 14/23 BLAUBRAND-ETERNA, cl.A, brown graduated with PP-stopper,single certificate,Borosilicate3.3
Available soon
BRAND Volumetric Flask 50 ml, Wide Neck, NS 14/23, BLAUBRAND ETERNA, Class A, Brown Graduation, PP Stopper, Single Certificate, Borosilicate 3.3

$127.58

Inc. GST

Manufacturer P/N

936848

Part Number

6.223 199

Manufacturer

BRAND

Ground size

NS 14/23

Measuring flask, BLAUBRAND® ETERNA, Class A, DE-M, 5 ml, W, NS 10/19 Boro 3.3, PP stopper, individual certificate
Available soon
BRAND BLAUBRAND Measuring Flask ETERNA, Class A, DE-M, 5 ml, NS 10/19, Boro 3.3, PP Stopper, Individual Certificate

$124.03

Inc. GST

Manufacturer P/N

936838

Part Number

4.684 457

Manufacturer

BRAND

Ground size

NS 10/19

Measuring flask, BLAUBRAND® ETERNA, Class A, DE-M, 10 ml, W, NS 10/19 Boro 3.3, PP stopper, individual certificate
Available soon
BRAND BLAUBRAND Measuring Flask ETERNA Class A, DE-M, 10 ml, NS 10/19 Boro 3.3, PP Stopper, Individual Certificate

$124.03

Inc. GST

Manufacturer P/N

936843

Part Number

4.684 458

Manufacturer

BRAND

Ground size

NS 10/19

Measuring flask, BLAUBRAND® ETERNA, Class A, DE-M, 20 ml, NS 10/19 Boro 3.3, PP stopper, individual certificate
Available soon
BRAND BLAUBRAND Measuring Flask ETERNA, Class A, DE-M, 20 ml, NS 10/19, Boro 3.3, PP Stopper, Individual Certificate

$124.03

Inc. GST

Manufacturer P/N

936845

Part Number

4.684 459

Manufacturer

BRAND

Ground size

NS 10/19

volumetric flask, BLAUBRAND® ETERNA, Class A, DE-M, 25 ml, NS 10/19 Boro 3.3, PP stopper, individual certificate
Available soon
BRAND BLAUBRAND ETERNA Volumetric Flask, Class A, DE-M, 25 ml, NS 10/19 Boro 3.3, PP Stopper, Individual Certificate

$124.03

Inc. GST

Manufacturer P/N

936841

Part Number

4.684 461

Manufacturer

BRAND

Ground size

NS 10/19

Volumetric flasks, BLAUBRAND® ETERNA, Class A, DE-M, 25 ml, W, NS 12/21 Boro 3.3, PP stopper, individual certificate
Available soon
BRAND BLAUBRAND ETERNA Volumetric Flask, Class A, DE-M, 25 ml, NS 12/21, Boro 3.3, PP Stopper, Individual Certificate

$124.03

Inc. GST

Manufacturer P/N

936842

Part Number

4.684 462

Manufacturer

BRAND

Ground size

NS 12/21

Volumetric flasks, BLAUBRAND® ETERNA, Class A, DE-M, 50 ml, NS 12/21 Boro 3.3, PP stopper, individual certificate
Available soon
BRAND BLAUBRAND Eterna Volumetric Flask, Class A, DE-M, 50 ml, NS 12/21, Boro 3.3, PP Stopper, Individual Certificate

$127.58

Inc. GST

Manufacturer P/N

936847

Part Number

4.684 463

Manufacturer

BRAND

Ground size

NS 12/21

Volumetric flasks, BLAUBRAND® ETERNA, class A, DE-M, 100 ml, NS 14/23 Boro 3.3, PP stopper, individual certificate
Available soon
BRAND BLAUBRAND ETERNA Volumetric Flask, Class A, DE-M, 100 ml, NS 14/23, Boro 3.3, PP Stopper, Individual Certificate

$131.12

Inc. GST

Manufacturer P/N

936849

Part Number

4.684 464

Manufacturer

BRAND

Ground size

NS 14/23

Volumetric flasks, BLAUBRAND® ETERNA, class A, DE-M, 200 ml, NS 14/23 Boro 3.3, PP stopper, individual certificate
Available soon
BRAND BLAUBRAND ETERNA, Volumetric Flask, Class A, DE-M, 200 mL, NS 14/23, Boro 3.3, PP Stopper, Individual Certificate

$136.43

Inc. GST

Manufacturer P/N

936850

Part Number

4.684 465

Manufacturer

BRAND

Ground size

NS 14/23

Volumetric flasks, BLAUBRAND® ETERNA, class A, DE-M, 250 ml, NS 14/23 Boro 3.3, PP stopper, individual certificate
Available soon
BRAND BLAUBRAND ETERNA, Volumetric Flask, Class A, DE-M, 250 ml, NS 14/23, Boro 3.3, PP Stopper, Individual Certificate

$138.21

Inc. GST

Manufacturer P/N

936851

Part Number

4.684 466

Manufacturer

BRAND

Ground size

NS 14/23

Volumetric flasks, BLAUBRAND® ETERNA, class A, DE-M, 500 ml, NS 19/26 Boro 3.3, PP stopper, individual certificate
Available soon
BRAND BLAUBRAND ETERNA Volumetric Flask, Trapezoidal, Class A, DE-M, 500 mL, NS 19/26, Boro 3.3, PP Stopper, Individual Certificate

$145.29

Inc. GST

Manufacturer P/N

936852

Part Number

4.684 467

Manufacturer

BRAND

Ground size

NS 19/26

Volumetric flasks, BLAUBRAND® ETERNA, class A, DE-M, 1000 ml, NS 24/29 Boro 3.3, PP stopper, individual certificate
Available soon
BRAND BLAUBRAND ETERNA, Volumetric Flask, Class A, DE-M, 1000 ml, NS 24/29, Boro 3.3, PP Stopper, Individual Certificate

$175.42

Inc. GST

Manufacturer P/N

936853

Part Number

4.684 468

Manufacturer

BRAND

Ground size

NS 24/29

Volumetric flasks, BLAUBRAND® ETERNA, class A, DE-M, 2000 ml, NS 29/32 Boro 3.3, PP stopper, individual certificate
Available soon
BRAND BLAUBRAND ETERNA, Volumetric Flask, Class A, DE-M, 2000 ml, NS 29/32, Boro 3.3, PP Stopper, Individual Certificate

$207.31

Inc. GST

Manufacturer P/N

936854

Part Number

4.684 469

Manufacturer

BRAND

Ground size

NS 29/32

More items to explore

Volumetric flasks, borosilicate glass 3.3, Class B.

ProductType of closureNominal capacityMfr#Part#AvailabilityPrice
Volumetric flask cap. 50 ml
BRAND Volumetric Flask Cap, 50 ml SILBERBRAND, Class B
Stopper50 ml367489.276 248$28.35

Volumetric flasks, boro 3.3, class A, blue graduations

ProductType of closureNominal capacityMfr#Part#AvailabilityPrice
Volumetric flask 20 ml, BLAUBRAND® class A, NS-PP-stopper,
BRAND Volumetric Flask 20 mL, BLAUBRAND Class A, NS, PP Stopper, NS 12/21, Boro 3.3
Stopper20 ml37245 ALT6.239 438$30.12
Volumetric flask 10 ml, BLAUBRAND® class A, NS-PP-stopper,
BRAND Volumetric Flask 10 mL Blaubrand Class A NS PP Stopper, NS 7/16, Borosilicate 3.3
Stopper10 ml37241 ALT6.272 008$28.35

Frequently asked questions

It is a high-precision flask designed for accurate liquid measurements in laboratory settings. Made from durable Boro 3.3 glass, it provides excellent resistance to thermal shock and chemicals. With a 20 ml capacity and a neck size of NS 12/21, this Class A flask comes with a PP stopper for secure closure. It is supplied with an individual certificate for quality assurance, ensuring precise and reliable measurements every time.

Insights

Explore
Burette vs Pipette: Key Differences and Which to Use

1 min read

Burette vs Pipette: Key Differences and Which to Use

This guide explains the practical difference between a burette and a pipette, two instruments that are often confused because both dispense measured volumes of liquid, but that are built for genuinely different jobs. It breaks down how a burette's stopcock and full-length graduated scale let an operator dispense a variable, watched volume and stop the instant a reaction reaches its endpoint, versus how a pipette (volumetric, graduated or micropipette) is built to transfer one known or pre-set volume in a single action. Rather than presenting the two as competing options, the piece frames them as complementary tools tied to different steps in a procedure: burettes for titration and any reaction where the target volume isn't known in advance, pipettes for sample preparation, dilutions and any step where the volume is already fixed.

Read full story
Top 5 Brands for Graduated Cylinders in 2026

1 min read

Top 5 Brands for Graduated Cylinders in 2026

This guide compares the five graduated cylinder brands most commonly used across Australian laboratories: Hirschmann Laborgeräte (DURAN® glass), Kartell (PMP plastic), ISOLAB Laborgeräte, BRAND (BLAUBRAND®) and VITLAB. Rather than treating graduated cylinders as interchangeable, it breaks down what actually separates them, Class A versus Class B accuracy tolerances, glass versus plastic construction, base stability and certification standards such as USP conformity, and explains which of these differences genuinely matter depending on the work.

Read full story
Top 5 Brands for Erlenmeyer Flasks in 2026

1 min read

Top 5 Brands for Erlenmeyer Flasks in 2026

This guide compares the five Erlenmeyer flask brands most commonly used across Australian laboratories today: DWK Life Sciences (DURAN®), ISOLAB Laborgeräte, LLG Labware, BRAND and Kartell. Rather than treating all Erlenmeyer flasks as interchangeable, it breaks down what actually separates them in practice, wall thickness consistency, thermal shock resistance, neck and closure compatibility, and material choice between borosilicate glass and polypropylene, and explains which of these differences matter for which kind of lab work.

Read full story

$125.80

Inc. GST