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NEMA publishes electrical equipment enclosure standard.

2014-12-31 14:30:58| Industrial Newsroom - All News for Today

NEMA 250-2014 Enclosures for Electrical Equipment (1,000 V Max) covers requirements to provide protection to enclosed equipment against specific environmental conditions, and supplements requirements that are contained in individual product standards. NEMA 250 does not cover requirements for protection of enclosed equipment against condensation, icing, corrosion, or contamination, which may occur within enclosure or which may enter via conduit or unsealed openings.

Tags: standard equipment electrical enclosure

 

ASTM Standard covers HDPE compounds in plastic piping.

2014-12-31 14:30:58| Industrial Newsroom - All News for Today

ASTM WK39447, Specification for Metric Outside Diameter Polyethylene (PE) Plastic Pressure Pipe (DRPN), will cover premier high-density polyethylene compounds used in plastic piping systems worldwide. Standard establishes material and product requirements, and tests for verification of compliance. It will be limited to PE4710 that is hydrostatic design basis- and hydrostatic design stress-rated using ASTM procedures; and PE100 that is minimum required strength-rated using ISO procedures.

Tags: standard covers plastic compounds

 
 

Particle Size Standard will help measure metal powders.

2014-12-31 14:30:58| Industrial Newsroom - All News for Today

Proposed ASTM standard, ASTM WK45240, Test Methods for the Particle Size Distribution Measurement of Powdered Materials by Wet and Dry Laser Diffraction, will set out general approach to measuring powders, suspensions, or slurries using appropriate wet or dry methodology. Standard will provide practical guidance on sampling, dispersion, verification, and correct use of optical constants. Applications include fuel injection, emulsions, perfumery, paints, coatings, and ceramic plates.

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Proposed ASTM Air Quality Standard helps prevent HF overexposure.

2014-12-30 14:30:42| Industrial Newsroom - All News for Today

Proposed ASTM standard WK38734, Test Method for the Determination of Particulate Fluorides and Hydrofluoric Acid Using Filter Sampling and Suppressed Ion Chromatography, will help prevent overexposure to hydrofluoric acid/hydrogen fluoride by workers. Targeting analytical laboratories and field industrial hygienists, standard can be used to measure airborne concentration of gaseous HF and particulate fluorides at levels "well above and below" applicable occupational exposure limits.

Tags: quality standard air prevent

 

ASTM Standard covers color and appearance of vinyl siding.

2014-12-30 14:30:42| Industrial Newsroom - All News for Today

ASTM D7856, Specification for Color and Appearance Retention of Solid and Variegated Color Plastic Siding Products Using CIELab Color Space, will enable manufacturers of color plastic vinyl siding to enhance color and appearance retention of their products. Standard will be used by siding manufacturers, developers, and suppliers of color systems and outdoor weathering laboratories. In addition, standard will be referenced by third-party color retention certificate programs.

Tags: standard color covers appearance

 

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