Representative Image

BRAND BLAUBRAND Volumetric Flask 25 mL, Class A, Glass Stopper NS 12/21, Borosilicate 3.3, Pack of 2

Brand:BRAND

Ground size

Nominal capacity

Tolerance

Specifications

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

RM 308.00

Inc. GST

Available soon

Product description

The BRAND BLAUBRAND 25 mL Volumetric Flask is a precision instrument designed for accurate liquid measurements in laboratory settings. Manufactured from durable borosilicate 3.3 glass, this flask features a ground glass stopper (NS 12/21) ensuring a tight seal and minimizing evaporation. It complies with DIN EN ISO 1042 standards and is calibrated to contain (TC, In) with Class A accuracy. Each flask is supplied with a batch number and an accompanying batch certificate, ensuring traceability and quality assurance.

Key Features:

  • Brand: BRAND
  • Volume: 25 mL
  • Material: Borosilicate 3.3 glass
  • Accuracy Class: Class A
  • Graduation: Calibrated to contain (TC, In)
  • Stopper: Ground glass stopper NS 12/21
  • Compliance: DIN EN ISO 1042
  • Certification: Supplied with batch certificate
  • Packaging: Pack of 2 flasks

This volumetric flask is ideal for laboratories requiring precise volume measurements and compliance with international standards.



Frequently Asked Questions

1. What is the BRAND BLAUBRAND Volumetric Flask 25 mL, Class A, Glass Stopper NS 12/21, Borosilicate 3.3, Pack of 2 used for?

It is a precision instrument designed for accurate liquid measurements in laboratory settings. Manufactured from durable borosilicate 3.3 glass, this flask features a ground glass stopper (NS 12/21) ensuring a tight seal and minimizing evaporation. It complies with DIN EN ISO 1042 standards and is calibrated to contain (TC, In) with Class A accuracy. Each flask is supplied with a batch number and an accompanying batch certificate, ensuring traceability and quality assurance.

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 volume of 25 mL to support this kind of work.

3. What volume does this product have?

It has a volume of 25 mL.

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

It is made from borosilicate 3.3 glass. It also offers class A, calibrated to contain (TC, In) and ground glass stopper NS 12/21.

Compare similar models

Volumetric flask 25 ml, BLAUBRAND® cl.A, Glas stopper, NS 12/21, Boro 3.3 pack of 2

Manufacturer P/N

37294

Part Number

4.689 164

Manufacturer

BRAND

Ground size

NS 12/21

Volumetric flask class A BLAUBRAND 2000ml NS 29/32

Manufacturer P/N

37265

Part Number

7.018 544

Manufacturer

BRAND

Ground size

NS 29/32

Volumetric flask 100 ml, BLAUBRAND® cl.A, Glas stopper, NS 14/23, Boro 3.3 pack of 2

Manufacturer P/N

37289

Part Number

4.689 160

Manufacturer

BRAND

Ground size

NS 14/23

Volumetric flask class A BLAUBRAND 250ml NS 14/23 pack of 2

Manufacturer P/N

37262

Part Number

4.688 894

Manufacturer

BRAND

Ground size

NS 14/23

Volumetric flask 200 ml, BLAUBRAND® Class A, glass stopper, NS 14/23, with batch certificate pack of 2

Manufacturer P/N

37261

Part Number

4.688 061

Manufacturer

BRAND

Ground size

NS 14/23

Measuring flask 50 ml, BLAUBRAND NS 12/21, class A, glass stopper pack of 2

Manufacturer P/N

37259

Part Number

4.689 022

Manufacturer

BRAND

Ground size

NS 12/21

Measuring flask, BLAUBRAND, class A 10 ml, with glass plugs pack of 2

Manufacturer P/N

37267

Part Number

4.688 909

Manufacturer

BRAND

Ground size

NS 10/19

Volumetric flask class A BLAUBRAND 1000ml with glass stopper

Manufacturer P/N

37264

Part Number

7.018 543

Manufacturer

BRAND

Ground size

NS 24/29

Volumetric flask class A BLAUBRAND 5000ml NS 34/35
Available soon
BRAND Volumetric Flask Class A, BLAUBRAND, 5000 ml, NS 34/35

RM 1,105.50

Inc. GST

Manufacturer P/N

37266

Part Number

7.018 545

Manufacturer

BRAND

Ground size

NS 34/35

Volumetric flask 20 ml, BLAUBRAND® class A, wide neck, glass stopper, NS 12/21 pack of 2

Manufacturer P/N

37268

Part Number

4.689 077

Manufacturer

BRAND

Ground size

NS 12/21

Volumetric flask class A BLAUBRAND 500ml NS 19/26 pack of 2

Manufacturer P/N

37263

Part Number

4.688 895

Manufacturer

BRAND

Ground size

NS 19/26

Volumetric flask 50 ml, BLAUBRAND® cl.A, Glas stopper, NS 14/23, Boro 3.3, pack of 2

Manufacturer P/N

37288

Part Number

4.688 062

Manufacturer

BRAND

Ground size

NS 14/23

Volumetric flask Cl.A 100:0,1ml, NS 12/21 glass stoppers pack of 2

Manufacturer P/N

37260

Part Number

4.689 035

Manufacturer

BRAND

Ground size

NS 12/21

Volumetric flask 25 ml, BLAUBRAND® class A, glass stopper, NS 10/19, with batch cert. pack of 2

Manufacturer P/N

37258

Part Number

4.689 058

Manufacturer

BRAND

Ground size

NS 10/19

Volumetric flask BLAUBRAND class A 20ml with glass stopper pack of 2

Manufacturer P/N

37257

Part Number

4.688 938

Manufacturer

BRAND

Ground size

NS 10/19

Volumetric flask, class A 5ml, NS 10/19 pack of 2
Available soon
BRAND Volumetric Flask, Class A 5 mL, NS 10/19, Pack of 2

RM 291.50

Inc. GST

Manufacturer P/N

37256

Part Number

4.688 892

Manufacturer

BRAND

Ground size

NS 10/19

More items to explore

Volumetric flasks, boro 3.3, class A, blue graduations, incl. ISO individual certificate

ProductType of closureNominal capacityMfr#Part#AvailabilityPrice
Stopper50 ml9372486.253 094RM 511.50
Stopper1000 ml9372536.264 672RM 588.50
Stopper25 ml9372477.659 413RM 500.50
Stopper50 ml9372906.257 937RM 517.00
Stopper200 ml9372507.400 043RM 544.50
Stopper5 ml9372387.659 411RM 495.00
Stopper2000 ml9372546.264 673RM 698.50
Stopper20 ml9372467.085 453RM 500.50
Stopper100 ml9372916.256 708RM 528.00
Stopper500 ml9372526.264 671RM 588.50
Stopper10 ml9372437.659 412RM 500.50
Stopper250 ml9372516.264 670RM 555.50
Stopper10 ml9372414.684 479RM 495.00
Stopper20 ml9372454.684 480RM 506.00
Stopper25 ml9372934.684 481RM 517.00
Stopper100 ml9372494.684 482RM 528.00
Stopper150 ml9372334.684 483RM 566.50
Stopper1000 ml9372344.684 484RM 616.00
Stopper5000 ml9372554.684 485RM 1,012.00
Stopper10000 ml9372364.684 486RM 1,765.50

Volumetric flasks, boro 3.3, class A, blue graduations, with glass stoppers, incl. ISO individual certificate

ProductType of closureNominal capacityMfr#Part#AvailabilityPrice
Stopper500 ml9372636.253 119RM 610.50
Stopper50 ml9372596.232 356RM 539.00
Stopper250 ml9372626.253 118RM 572.00
Stopper5 ml9372564.684 487RM 522.50
Stopper10 ml9372674.684 488RM 522.50
Stopper20 ml9372576.319 953RM 522.50
Stopper20 ml9372684.684 489RM 528.00
Stopper25 ml9372584.684 490RM 522.50
Stopper25 ml9372944.684 491RM 528.00
Stopper50 ml9372884.684 492RM 539.00
Stopper100 ml9372604.684 493RM 544.50
Stopper100 ml9372894.684 494RM 550.00
Stopper200 ml9372614.684 495RM 566.50
Stopper1000 ml9372644.684 496RM 621.50
Stopper2000 ml9372654.684 497RM 731.50
Stopper5000 ml9372664.684 498RM 1,078.00

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

RM 308.00

Inc. GST