COMPARING DIMENSIONAL INSPECTION LABORATORY - QUOTATIONS
COMPARING LAB TO LAB
Many customers only consider price when selecting a laboratory to perform a
dimensional inspection of their manufactured parts, even more so during these
times of tough economic pressures. At Bobier Metrology we agree price is a key
factor, but it's not the only factor when comparing dimensional inspection
quotations. Most importantly you want to make sure you are comparing
laboratory to laboratory.
There are five key factors to review when accurately comparing dimensional inspection quotations; Laboratory Qualifications, Laboratory Environment, Type of Equipment, Data Result Formats, and lastly Price.
LABORATORY QUALIFICATIONS
Many customers do not consider the laboratory qualifications when review quotations.
You wouldn't hire an employee if they didn't meet some form of standard set forth by your
company? So why would you send your manufactured parts to a laboratory that doesn't
meet the industry standard? All laboratories quoting should be "Accredited" to ISO/IEC
17025 standard. Several laboratories get by with a statement that they are
"In Compliance" to the ISO/IEC 17025 standard. Accredited laboratories are reviewed
annually for competence in their calibration field; accredited laboratories are subject to spot audits by the accreditation body and their customers. Equipment utilized by accredited laboratories must be traceable to the National Institute of Standards Technology (N.I.S.T), with each individual piece of equipment being directly linked to N.I.S.T traceable number. These practices allow the customer to have confidence in the data results obtained by the accredited laboratory, ensuring that they followed industry standards. Labs that are "In Compliance" can easily choose which portions of the ISO/IEC standard they wish to comply with. There are no means for which the customer can be confident that all practices stated in the ISO/IEC 17025 standard are being enforced and followed throughout the inspection process.
LABORATORY ENVIRONMENT
All dimensional inspections should be performed in a controlled environment at 68 degrees
fahrenheit while holding 40% humidity as outlined per ISO/IEC 17025. Our laboratory at
Bobier Metrology Solutions is a solid airlock enclosure utilizing 1 micron HEPA filters;
holding a constant temperature of 68 degrees fahrenheit +/- 0.5 degrees fahrenheit and
humidity is at 40% +/- 10%. To our knowledge we are only one of four laboratories in the
United States with this capability that perform GD&T inspections. You'll have the confidence
in knowing our results are precise and accurate. Additionally, our laboratory is security
controlled. Parts are handled by laboratory trained personnel only, and are stored discreetly
out of view of the public and/or visitors. Our laboratory is maintained by security code entry
guaranteeing each inspection performed by Bobier Metrology Solutions is confidential.
TYPE OF EQUIPMENT
Has the laboratory quoted the appropriate equipment to use to
perform your dimensional inspection? Many customers overlook
the fact that dimensional data can be obtained using several
different approaches. However, each approach has its own level
of uncertainty when obtaining dimensional data. Sure, it's a lot less
expensive to to measure a distance on digital caliper than on a
coordinate measuring machine (CMM), but you have much greater
accuracies and repeatability when utilizing a CMM over a digital
caliper. Bobier Metrology Solutions has state of the art measurement
equipment to guarantee your measurement data is repeatable
within microns.
DATA RESULT FORMATS
Many times inspection data result formats are overlooked during the quotation process,
leaving the customer stuck with a list of numbers being unable to relate the data back to
their manufactured part and/or print. Bobier Metrology Solutions offers several standard data
formats including color error maps and pictures of the part with the dimensions ballooned per
each feature measured. We also have the capability to customized our reports to meet your
customer specific requests. You can be assured that all data formats are in a logical format
matching your CAD or supplied print. Bobier Metrology also supplies the customer with FREE
phone support to aid in data interpretation.
PRICE
A majority of labs base their pricing per dimension, so its equally important to make sure each
laboratory has quoted the same amount of dimensions to be inspected. Every laboratory should
supply within their written quotation the number of dimensions to be inspected and a datum
scheme for the inspection. Every quotation presented by Bobier Metrology Solutions will include our
price based on the number of dimensions and a clear datum scheme. We also have hourly rate
quotes available upon request.
Once all the information has been obtained, the customer then should be able to pick the appropriate laboratory to perform their dimensional inspection based upon the laboratory qualifications, laboratory environment, type of equipment, data result formats, and lastly price.