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  2. Positive material identification - Wikipedia

    en.wikipedia.org/wiki/Positive_material...

    Positive material identification (PMI) is the analysis of a material, this can be any material but is generally used for the analysis of metallic alloy to establish composition by reading the quantities by percentage of its constituent elements. Typical methods for PMI include X-ray fluorescence (XRF) and optical emission spectrometry (OES). [1]

  3. Spark testing - Wikipedia

    en.wikipedia.org/wiki/Spark_testing

    Moreover, test samples do not have to be prepared in any way, so, often, a piece of scrap is used. The main disadvantage to spark testing is its inability to identify a material positively; if positive identification is required, chemical analysis must be used. [2] The spark comparison method also damages the material being tested, at least ...

  4. Nondestructive testing - Wikipedia

    en.wikipedia.org/wiki/Nondestructive_testing

    Positive material identification (PMI) Radiographic ... Guidelines for correct application of statistical methods to POD tests can be found in ASTM E2862 Standard ...

  5. Recycling codes - Wikipedia

    en.wikipedia.org/wiki/Recycling_codes

    Recycling codes on products. Recycling codes are used to identify the materials out of which the item is made, to facilitate easier recycling process.The presence on an item of a recycling code, a chasing arrows logo, or a resin code, is not an automatic indicator that a material is recyclable; it is an explanation of what the item is made of.

  6. Hazardous Materials Identification System - Wikipedia

    en.wikipedia.org/wiki/Hazardous_Materials...

    The Hazardous Materials Identification System (HMIS) is a proprietary numerical hazard rating that incorporates the use of labels with color bars developed by the American Coatings Association as a compliance aid for the OSHA Hazard Communication (HazCom) Standard.

  7. Tygon tubing - Wikipedia

    en.wikipedia.org/wiki/Tygon_Tubing

    This material is produced in vacuum sizes and can withstand a full vacuum at room temperature. It is a thermoplastic PVC-based material with plasticizer. [3] Tygon R-1000 Ultra-Soft Tubing is used in general laboratory applications. It is the softest of the Tygon formulations with a durometer hardness of Shore A 40 (ASTM Method D2240-02).

  8. List of NA numbers - Wikipedia

    en.wikipedia.org/wiki/List_of_NA_numbers

    Unsourced material may be challenged and removed. Find sources: "List of NA numbers" – news · newspapers · books · scholar · JSTOR ( November 2016 ) ( Learn how and when to remove this message )

  9. Robotic non-destructive testing - Wikipedia

    en.wikipedia.org/wiki/Robotic_Non-Destructive...

    Robotic non-destructive testing (NDT) is a method of inspection used to assess the structural integrity of petroleum, natural gas, and water installations. Crawler-based robotic tools are commonly used for in-line inspection (ILI) applications in pipelines that cannot be inspected using traditional intelligent pigging tools (or unpiggable pipelines).