Investigation of Performance Characteristics for Sanitary Plumbing FixturesU.S. National Bureau of Standards, 1970 - 68 pages |
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Page 18
... treated fixture visually at a normal reading distance for blemishes and defects . Use a light source of partially diffused daylight or substantially equivalent artificial light , with a luminous intensity near the inspection sur- face ...
... treated fixture visually at a normal reading distance for blemishes and defects . Use a light source of partially diffused daylight or substantially equivalent artificial light , with a luminous intensity near the inspection sur- face ...
Page 21
... treatment time is calibrated through use of standard specimens of plate glass . Two types of abrasion are measured . For sur- face abrasion , the abrasive is the fraction of Penn- sylvania glass sand ( quartz ) passing a No. 70 sieve ...
... treatment time is calibrated through use of standard specimens of plate glass . Two types of abrasion are measured . For sur- face abrasion , the abrasive is the fraction of Penn- sylvania glass sand ( quartz ) passing a No. 70 sieve ...
Page 22
... treatment . In an attempt to eliminate this difficulty , the bristles were removed from a nylon brush and replaced with sponge rubber . This pad was then used with Ajax slurry to abrade a second porcelain - enameled steel specimen ...
... treatment . In an attempt to eliminate this difficulty , the bristles were removed from a nylon brush and replaced with sponge rubber . This pad was then used with Ajax slurry to abrade a second porcelain - enameled steel specimen ...
Page 24
... treatment of the surface . In testing for cleanability as in section 4.4.1 , surfaces to be evaluated are first conditioned by hand scrubbing with wet sponge and scouring powder . About 5 g of " standard dirt " per 16 in2 of surface is ...
... treatment of the surface . In testing for cleanability as in section 4.4.1 , surfaces to be evaluated are first conditioned by hand scrubbing with wet sponge and scouring powder . About 5 g of " standard dirt " per 16 in2 of surface is ...
Page 25
Institute for Applied Technology (U.S.). Building Research Division. ing treatment is accomplished by comparing the white - light reflectance before the dirt is applied with that after the dirt is removed by the specified cleaning treatment ...
Institute for Applied Technology (U.S.). Building Research Division. ing treatment is accomplished by comparing the white - light reflectance before the dirt is applied with that after the dirt is removed by the specified cleaning treatment ...
Common terms and phrases
abraded abrasion ammonium hydroxide apparatus ASTM designation blisters Bon Ami bottom brush Brush Brush Brush Bureau of Standards cast-iron center deflection cleanability cleaning color Comments on Performance Commercial Standard cracking cycles damage depth detergent dial gage diam Discussion of Existing drain enameled evaluate exposure fixture materials flat specimens FRPE bathtubs FRPE fixtures FRPE specimens gel-coat household chemicals inspection installed iron laboratory manufacturers Mercurochrome National Bureau observed percent Performance Level Performance Requirements plastic polyester porcelain proposed revision Purpose and Scope Rationale for Suggested Rationale for Test Recommended Test Method removal resistance rating sanitary plumbing fixtures sanitary ware Scope The purpose scouring powder scratch scratch test scrub section 2.8 simulate slip resistance slurry soap Sodium soilability soiling agent Spec stain rating Suggested Format sump surface TEFLON temperature test area Test Development test procedure Test Results Tester thermal shock tion vitreous china watch glass weight
Popular passages
Page 4 - In no case does such identification imply recommendation or endorsement by the National Bureau of Standards , nor does it imply that the...
Page 1 - This report gives findings and recommendations developed during an investigation of performance characteristics for sanitary plumbing fixtures, conducted at the request of the Building Research Advisory Board of the National Academy of Sciences-National Research Council. The...