Raw Materials

  1. Stainless Steel Standards and Specifications for Cleanroom Equipment: An Overview of ASTM and AISC Standards

    Stainless Steel Standards and Specifications for Cleanroom Equipment: An Overview of ASTM and AISC Standards

    Terra customers often inquire about what type of steel is suggested for their product. In making a decision, one should also consider that not all 304 and 316 stainless steel is built to equal standards.

    In the USA, the leading codes of standard practices for steel manufacturing are issued by the American Institute of Steel Construction (AISC). The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification

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  2. Selecting Appropriate Cleanroom Stainless Steel: 304 vs 316 vs 304L vs 316L

    Selecting Appropriate Cleanroom Stainless Steel: 304 vs 316 vs 304L vs 316L

    Terra Universal manufactures a vast selection of stainless steel products for cleanrooms, hospitals, laboratories, and other controlled environments. Among these steel-constructed products, you'll find tables, workstations, glove boxes, pass-throughs, doors, and more.

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  3. Chemical Compatibility Chart — Plastics

    This chart is intended as a general guide for various materials and chemicals. It shows some of the materials used in Terra’s products and chemicals likely to be used with them. Testing is strongly recommended for extreme conditions of use, such as prolonged exposure or immersion, high temperatures and high concentrations. The acids, caustics and salts in this chart are assumed to be in solution. Materials may react differently to the pure substances (glacial acetic acid, for example). See Terra Universal's line of plastic Desiccators.

    Hazards Key
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    Hazards (Only the primary ones are shown. For example, chlorine is not shown as an asphyxiant because its toxicity will kill you first).

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  4. Chemical Compatibility Chart — Rubber and Synthetics

    This chart is intended as a general guide for various materials and chemicals. It shows some of the materials used in Terra’s products and chemicals likely to be used with them. Testing is strongly recommended for extreme conditions of use, such as prolonged exposure or immersion, high temperatures and high concentrations. The acids, caustics and salts in this chart are assumed to be in solution. Materials may react differently to the pure substances (glacial acetic acid, for example). See Terra Universal's line of Rubber & Synthetic Gloves.

    Hazards Key
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    Hazards (Only the primary ones are shown. For example, chlorine is not shown as an asphyxiant because

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  5. Chemical Compatibility Chart — Metals

    This chart is intended as a general guide for various materials and chemicals. It shows some of the materials used in Terra’s products and chemicals likely to be used with them. Testing is strongly recommended for extreme conditions of use, such as prolonged exposure or immersion, high temperatures and high concentrations. The acids, caustics and salts in this chart are assumed to be in solution. Materials may react differently to the pure substances (glacial acetic acid, for example). See Terra Universal's line of metal Pass-Throughs.

    Hazards Key
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    Hazards (Only the primary ones are shown. For example, chlorine is not shown as an asphyxiant because its toxicity will kill you first).

    Read more »