Royal Netherlands Institute for Sea Research

Bottom Sampling

For sampling of deep-sea and shallow sediments NMF maintains a diverse selection of corers, grabs and dredges. Commonly used samplers are mono-, box-, multi-, piston- or gravity-corer; furthermore, special samplers such as vibro-corer, van Veen grabs or dredges can also be made available.

Requests to utilise equipment can be addressed to:
Erica Koning  +31 (0) 222 369 441 | if no answer: Thomas de Greef +31 (0) 222 369 375

Mono corer

Mono corer: a small corer that can be deployed hanging from the CTD rosette frame

Multi corer

Enables simultaneous sampling of 8 or 12 tubes of undisturbed sediment, including the overlying bottom water.  Multi corers take high quality sampling of soft sediments.

Specifications:
12 samples; Core tubes: 8 x Ǿ 66 mm, L = 610 mm; 4 x Ǿ 100 mm, L = 610 mm
Weight: appr. 500 kg; Model: Oktopus

Piston corer

Takes longer cores (compared to mono and multi corer) up to 18m, in soft sediment.

Specifications:
Max length of core barrels = 24 m; Core diameter (liner) = Dn 90 or Dn 110 mm;                                
Empty weight = 1.200 kg

Remark: requires special assistance

Box corers

Takes larger volumes of sediment (30cm or 50cm diameter) for subsampling or sieving on board. The larger box corer is also available with on-line video option.

Reineck Type K1 en K3 Box corer is used for bulksampling of sediments.

Specifications:
Box measurements: 300 x 200 mm, L = 550 mm; Weight: 750 kg

Standard Type K1 en K3 Box corer is used for bulksampling of sediments.

Specifications:
Box dimensions | Empty weight

K4 Ǿ 320, L = 550 mm | 50 kg
K6 Ǿ 320, L = 550 mm top valve | 800 kg
K19 Ǿ 320, L = 550 mm top valve | 900 kg
or: 300 x 200 , L = 550 mm

Haja Boxcorer is used for bulksampling of sediments.

Specifications:
K11: Large, equipped with top valve; K18: Large, equipped with top valve
K16: Small, equipped with top valve

Box dimensions Empty weight
K11 Ǿ 500, L = 550 mm 1350 kg
or: 500 x 500, L = 550 mm

K18 Ǿ 500, L = 550 mm 1350 kg
or: 500 x 500, L = 550 mm

K16 Ǿ 300, L = 550 mm 900 kg
Or: 300 x 200, L = 550 mm

Mini Boxcorer is used for bulksampling of sediments.

Specifications:
Box dimensions: Ǿ 125, L = 200 mm top valve included; Empty weight: 120 kg

Gravity Corer

Used to take sediment cores of up to 6 m lenght in soft sediment. Alternative for piston corer, mainly used in shallow waters.

Specifications:
Length of core barrels = 2 - 6 m; Core diameter (liner) = Dn 110 mm; Empty weight = 75 - 1.200 kg

Remark: assistance required

Vibro corer

A vibro corer is especially suitable for sampling sandy sediments. This equipment can be made available upon request.

Specifications:
Length of core barrel = 4,5 – 6 m; Core diameter (liner) = Dn 100 mm; Weight frame = appr. 1.500 kg; Special electro mechanical cable and winch of TNO-NITG is needed; Max. waterdepth = 850 m

Van Veen Grabber

Compact lightweight gear to sample bulk sediment.

Specifications:
Type Volume Empty weight; Large 60 ltr 100 kg; Medium 30 ltr 65 kg; Small 5 ltr 25 kg

Supplementary equipment

Standard Hydraulic Core Slicer

To accurately extrude and slice multicore samples.

Specifications:
4 cores are processed simultaneously
Slice range: 0,1 – 100 mm
Weight: appr. 100 kg

Hydraulic Core Slicer & Glove Box

Used to accurately extrude and slice multicore samples under inert atmosphere.

Specifications:
4 cores are processed simultaneously

Nitrogen glove box; Slice range: 0,1 – 100 mm; Weight: appr. 150 kg

Core Cutter

Used for cutting coreliners longitudinally and split gravity cores, piston cores and vibrocores.

Specifications:
Diameter range of liner: Ǿ 45 – 130 mm; Max core length: 200 cm
Dimensions: h x w x l = 110 x 55 x 250 cm; Weight: appr. 125 kg