platescrape dish prerinse test report · 2016-10-11 · fni equipment test report pcp 160104 policy...

PlateScrape Plate Pre-Scrapper Test Report FNI Report # T20047-R0

Application of ASTM Standard Test Method F2324-03 September 2016

Prepared by: Denis Livchak Fisher-Nickel, Inc. Contributors: Andre Hookfin Fisher-Nickel, Inc.

Prepared for: P.S. Creations

10580 San Marcos Road Atascadero, CA 93442

Fisher-Nickel, Inc. All rights reserved. 2016 The information generated in this report is based on data generated at the PG&E Food Service Technology Center (FSTC)

FNI Equipment Test Report

PCP 160104

Policy on the Use of Food Service Technology Center Test Results and Other Related Information Fisher-Nickel, Inc. and the FSTC do not endorse particular products or services from any specific manufacturer or service provider.

The FSTC is strongly committed to testing foodservice equipment using the best available scientific techniques and instrumentation.

The FSTC is neutral as to fuel and energy source. It does not, in any way, encourage or promote the use of any fuel or energy source nor does it endorse any of the equipment tested at the FSTC.

FSTC test results are made available to the general public through technical research reports and publications and are protected under U.S. and international copyright laws.

Disclaimer Copyright 2016 Fisher-Nickel, Inc. (FNI). All rights reserved. Reproduction or distribution of the whole or any part of the contents of this document without written permission of FNI is prohibited. Results relate only to the item(s) tested. Neither Fisher-Nickel, Inc. nor Pacific Gas & Electric (PG&E) or any of their employees, make any warranty, expressed or implied, or assume any legal liability of responsibility for the accuracy, completeness, or usefulness of any data, information, method, product or process disclosed in this document, or represents that its use will not infringe any privately-owned rights, including but not limited to, patents, trademarks, or copyrights.

Reference to specific products or manufacturers is not an endorsement of that product or manufacturer by Fisher-Nickel, Inc. or PG&E. In no event will Fisher-Nickel, Inc. or PG&E be liable for any special, incidental, consequential, indirect, or similar damages, including but not limited to lost profits, lost market share, lost savings, lost data, increased cost of production, or any other damages arising out of the use of the data or the interpretation of the data presented in this report.

Legal Notice This report was prepared by Fisher-Nickel, Inc. (FNI) at the Pacific Gas & Electric (PG&E) Food Service Technology Center (FSTC) whose operations are sponsored by the California Public Utilities Commission (CPUC). It does not necessarily represent the views of the CPUC, its employees, or the State of California. The CPUC, the State of California, its employees, contractors, and subcontractors make no warranty, express or implied, and assume no legal liability for the information in this report; nor does any party represent that the use of this information will not infringe upon privately owned rights. This report has not been approved or disapproved by the CPUC nor has the CPUC passed upon the accuracy or adequacy of the information in this report.

Revision History

Revision num. Date Description Author(s)

0 Sep 2016 Initial Release D. Livchak

FNI Report # T20047-R0 12949 Alcosta Blvd. Suite 101, San Ramon, CA 94583 P: 1.800.398.3782 F: 1.925.866.2864 www.fishnick.com

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PCP 160907

Contents Page

Equipment Description ………………………………………………………………………………………. 4

Test Location …………………………………………………………………………………………………… 4

Ventilation ………………………………………………………………………………………………………. 4

Test Instrumentation Inventory …………………………………………………………………………….. 5

FNI Test Report: Results ………………………………………………………………………………….. 6

Additions, Deviations, and Exclusions …………………………………………………………………… 11

Manufacturer Specifications Sheet ………………………………………………………………………... 12

Report Certification ………………………………………………………………………………………….. 13


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PCP 160104

Test Location

All testing was performed under controlled conditions in the Pacific Gas & Electric (PG&E) Food Service

Technology Center (FSTC) laboratory facilities at 12949 Alcosta Blvd., Suite 101, San Ramon, CA 94583.

Ventilation

Placed on a countertop table and tested in a conditioned space without ventilation.

Equipment Description

Test Work Order Number (TWO) T20047

Manufacturer P.S. Creations

Model PlateScrape

Serial Number N/A

Generic Equipment Type Plate Pre-Scrapper

Rated Input N/A

Construction Plastic, with nylon bristles

Controls N/A

External Dimensions (W x D x H) 17” x 11” x 12”

Custom Settings (if any) Filled with 120F water

Water Capacity 4.4 gal


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PCP 160104

Thermocouple Inventory

Set Number Validation Date

79 9/1/2016

Holding Equipment Inventory

Description (ID) Manufacturer Model

N/A N/A N/A

Test Instrumentation Inventory

Description (ID) Manufacturer Model Measurement Range

Resolution Calibration Date

Next Calibration

Stopwatch(ALA110) Oakton 35002-11 0.01 – 86,400 s 0.01/1 s 11/14/2015 11/14/2016

Digital Scale(ALC 304) Acculab SVI-20B 0 - 44 lb 0.005 lb 05/11/2016 05/31/2017

DAQ Temp(ALE 510) National Instruments FP-TC-120 0 - 1000°F 0.1°F 08/08/2016 08/08/2018


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Equipment Description

PlateScrape is a plate pre‐scrapper which can be utilized in lieu of a pre rinse spray valve. The plate pre‐

scrapper is not a sanitizing device and is intended to be used as a pre‐scrapper prior to the sanitization

process in a dishwasher or a sanitizing solution. PlateScrape consists of a 5 gallon tank equipped with

specifically designed nylon brushes for plate cleaning. The tank is filled with 4.4 gal of water to the fill

level. The oppositely placed brushes are submerged in water. An operator submerges plates in the

water past the nylon brushes. A combination of vertical and rotational movements remove debris from

the plates as they are scrubbed by the brushes.

PlateScrape Filled to Level Nylon Brushes Submerged in Water

The tank performs the same task as a pre rinse spray valve while minimizing water consumption.

PlateScrape can be filled with hot or cold water and be used with and without dish detergent. Hot water

and the addition of detergent reduce cleaning times. Water consumption depends on how often the

user empties and refills the tank which should be dependent on the amount of soil level on the plates.


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20 Plates Covered with Dry Tomato Paste Prior to Cleaning

20 Plates After Cleaning with PlateScrape

Methodology

Testing was performed with 9‐inch diameter plates weighing 1.3 lb each. PlateScrape was filled with 4.4

gallons of water. Each plate was evenly covered with one tablespoon (15 mL) of tomato paste and dried

for a period ranging between 24 and 48 hours. Twenty plates were used for each test replicate. Tests

were performed with 120⁰F, 100⁰F, and 70⁰F water. Cleaning time was recorded using a calibrated

stopwatch and water temperature was measured throughout the test at 5 second intervals with type‐K

thermocouples. Water volume was calculated by weighing the water before and after each test using a

calibrated scale.

Results

Testing was performed with 120⁰F target water temperature in order to mimic the ASTM F2324 pre rinse spray valve test method. The PlateScrape was filled with 4.38 gal of hot water to the fill line. The average time to clean 20 plates was 10.9 seconds with 120⁰F initial temperature water. Three test replicates were conducted in order to confirm time consistency. By the time the last of the 20 plates was washed, the water temperature has dropped to 111⁰F from 120⁰F. In comparison, it takes a pre‐rinse spray valve 13 to 23 seconds on average to perform the same cleaning task at 60psi supplied with 120⁰F water. Pre rinse spray valve cleaning time depends on the flow pattern design and water flow rate.


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PlateScrape Water Temperature Drop while washing 20 plates The washing technique involved scraping the plate for 5 seconds, then rotating it 90 degrees and scraping it for 5 more seconds. The plates were angled at an approximately 15 degree angle from vertical during the scraping. Scraping times were consistent ranging from 9 to 12 seconds per plate. The water level dropped by 0.09 gal for every 20 plates cleaned by the PlateScrape. Different users experienced similar cleanability times and cleanability times decreased as users became more familiar with the cleaning technique.

PlateScrape Cleanability Times at 120°F for each run

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120

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0 1 2 3 4 5 6 7 8 9 10

Clean

ing Water Te

mperature (F)

Test Time (min)

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1 2 3

Plate Clean

ing Time (sec)

Test Run


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The test with 120⁰F water resulted in a 10.9 sec cleanability time and a 111⁰F final water temperature. The test with 100⁰F water resulted in a 13.6 sec cleanability time and a 95⁰F final water temperature. The test with 70⁰F room temperature water resulted in a 16.9 sec cleanability time and the water temperature did not change.

PlateScrape Cleanability Times at Different Initial Water Temperatures Water consumption will depend on how often the user dumps the water based on the soil level of the plates. If water was replaced every 200 plates cleaned with 0.09 gal added for every 20 plates cleaned, the water consumption would be 5.30 gal per 200 plates including the fill. This equates to 0.0265 gal per plate. This assumes 120⁰F water was used and a 4‐second plate handling time with 4 plates washed per minute. The equivalent flowrate of the PlateScrape was 0.106 gpm. If the water was replaced every 100 plates cleaned, the water consumption would be 4.85 gal and the equivalent flowrate would be 0.194 gpm. In the worst water consumption scenario, if the water was replaced every 20 plates cleaned, the water consumption would be 4.47 gal with an equivalent flowrate of 0.894 gpm.

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120 100 70

Plate Clean

ing Time (sec)

Washing Water Temperature (F)


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Water Color after Washing 20 plates covered with dried tomato paste (20 tablespoons total) Cleanability Time

Initial Water Temperature (⁰F) 120 100 70

Cleaning Time Per Plate (sec) 10.9 13.6 16.9

Water Consumption Comparison

Plates Washed Fill (gal) Topoff (gal) Plates Per Minute (120⁰F) GPM equivalent

200 4.4 0.9 4 0.106

150 4.4 0.675 4 0.135

100 4.4 0.45 4 0.194

50 4.4 0.225 4 0.370

20 4.4 0.09 4 0.898


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PCP 160104

Additions, Deviations, & Exclusions

Additions: Cleanability test was performed at 70°F and 100°F in addition to 120°F tests.

Deviations: Water temperature decreased throughout testing after the initial fill; initial and final water temperatures are documented in the report.

Exclusions: The Flow Rate test is not applicable to this device. Water consumption is determined by the holding volume of the device. Total water consumption will vary depening on how often the user changes out the water. FNI Report # T20047-R0 12949 Alcosta Blvd. Suite 101, San Ramon, CA 94583 P: 1.800.398.3782 F: 1.925.866.2864 www.fishnick.com

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PCP 160104

Manufacturer Specifications Sheet

Manufacturer Specifications Sheet (Continued)


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platescrape dish prerinse test report · 2016-10-11 · fni equipment test report pcp 160104 policy...

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