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lantern color perception testing farnsworth 120 volt 40 watt
farnsworth; cast or plastic housing; c/o: carrying handle, aperture assembly, manual or electronic means of color selection, colored filters, neutral density filters, source of illumination, spare lamp, carrying case, metal or plastic plate with instructions for operation; supplied with two plastic covered templates, a scoring template and instructions for examinee template; presents a series of nine pairs of red, white, green colored lights that must be identified by the examinee; vertical pairs of colored filters are permanent and reproducible; locus and tolerance for each three filters given in the ici accordinate system; illumination source: ge airport marker, 120 volt, 40 watt
A device consisting of a lampholder, a set of color standards and an intergal handle. It may contain a battery container. It is designed to provide illuminated colored areas to test color vision. It is not designed for illumination of external objects. For items which provide general illumination, see lantern, electric.
Special requirement. see specific instructions or drawings provided.
All packaging data is mandatory for compliance and no substitutions are permitted. fast packs should be included in this category.
Special requirements.
OPI: Optional Procedure Indicator Code. A one position alpha code that indicates the allowable deviations from the prescribed requirements.
SPI No.: Special packaging instructions number.
LVL A/B/C: Indicates the type of shipping container required for level A, B, or C maximum packing protection.
SPC Mkg: A two position code that identifies the special markings applied to the container, which is part of the total pack to protect the contained item during preservation, packing, storage, transit and removal from the pack.
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
Item does not contain precious metal.
The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
HMIC: Hazardous Material Indicator Code. A one position code that identifies a hazardous item.
PMIC: Precious Metal Indicator Code. A one position code which identifies items that have precious metals as part of their content. precious metals are those metals generally considered to be uncommon, highly valuable, and relatively superior in certain properties such as resistance to corrosion and electrical conductivity.
ESD: Electrostatic Discharge. Indicates if an item is susceptible to electrostatic discharge or electromagnetic interference damage. electrostatic discharge damage occurs when an accumulation of static electricity generated by the relative motion or separation of materials is released to another item by direct contact. electromagnetic interference damage occurs when an item comes into proximity with an electrostatic or magnetic field.
ENAC: Enviromental Attribute Code. Identifies items with environmentally preferred characteristics.
CRITL: Criticality Indicator Code. Indicates an item is technically critical by tolerance, fit, application, nuclear hardness properties, or other characteristics.