Alpha Chemika manufactures Neutral Hard Glass Test Tube. Alpha Chemika is an ISO 9001:2000 certified company offering a wide range of Amino Acids, Anti Bacterial/Fungal/Microbial Agents, Animal Tissue Culture Media, Bio chemicals, Buffers, Enzymes, Ion Pairing Reagents, Molecular Biology Reagents, Research Chemicals and Speciality Chemicals. The Neutral Hard Glass Test Tube is available with rim and provides resistant to heat up to a temperature of 350° C.