These soda glass test tubes are suitable for general mixing and simple laboratory work, and willstand moderate warming (eg. in water bath).
They should not be places directly into naked flames.
Tolerances are as specified in ISO 4142:2002
Dimensions:
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Test Tube Stand, Wooden, 2 x 32 + 4 x 22mm holes with 6 drying pegs
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£8.73 excl. VAT
£10.48 inc. VAT