Spectral Analysis. Cuvette. ND11 Crimp Vials. 11mm aluminum crimp top seals have a larger opening to ensure proper needle penetration 2ml, 12X32mm vials are manufactured of Clear, Type 1. Class A or Amber, Type 1 Class B borosilicate glass and include a write-in patch for sample identification. Caps are made of high quality laquered aluminum, 0