16:52 02/10/2010
 

Material to prepare voucher specimens

STRINGS

  • To close bundles of specimens.

  • CARDBOARDS

  • Corrugated cardboards. The corrugations should run widthways if the cardboards are used as ventilators in the plant press .

  • NEWSPAPERS

  • Unmounted specimens lay inside newspapers sheets. They can be used as an alternative to drying paper while drying plants.

  • MOUNTING PAPER

  • Type: 100% rag (100% cotton), or chemical wood pulp. Matt surface (aka “NOT”). Buffered to prevent acid migration.
  • Paper should be sulphur-free. Avoid ground and mechanical wood pulp.
  • Size: 42 x 26 cm

  • TRANSLUCENT PAPER

  • Type: semi-transparent and acid-free.

  • TRANSLUCENT PACKETS

  • Type: semi-transparent and acid-free.

  • TRANSPARENT SLEAVES

  • Type: polyester.

  • PAPER CAPSULES (ENVELOPES)

  • Type: Acid free

  • PAPER CLIPS

  • Type: brass paper clips, continual-loop plastic clips or no-tear metal clips.

  • INK AND PENCILS

  • Ink: black, permanent and water-resistant.
  • Pencils: HB, 2B or F.

  • ADHESIVES

  • One of the following:
  • Starch paste, PVA, Methyl cellulose.

  • TAPES

  • Linen tape
  • Polyester tapes
  • White acid free paper (used with adhesives).

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