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A: Cleaning your weights should be a standard practice before submitting your weights for calibration. Proper cleaning removes debris, rust, corrosion and any other extraneous material from the weight that could cause the weight to measure out of tolerance. Proper cleaning also extends the life of the weight, especially cast iron standards, as they are more susceptible to rust and corrosion. If rust and corrosion are removed on a regular basis, it slows the breakdown of the material. On a cost basis, cleaning your standards prior to calibration reduces the amount of time required, and thus lessens the charge. If your weights come into the metrology lab dirty, rusty, or full of water, we reserve the right to reject the item. If the weight is not repairable, we also reserve the right to condemn the weight from further use.
For proper cleaning recommendations of your standards, refer to Standard Conditions/Cleaning.
A: Please refer to Standard Conditions/Cleaning. If you have additional questions, please contact us.
A: For questions concerning the price of gas, over/under charging at the gas pump, gas quality, complaints, etc. please refer to the Oil and Public Safety, a Division of the Colorado Department of Labor and Employment, at (303) 318-8525.
A: Upon request for calibration of your standards, a metrologist will give you an estimate of what the turnaround time will be for your standards. If the original turnaround time quoted changes, we will contact you as soon as possible. The average turnaround is 5 to 10 business days with the following possible exceptions:
A: Measurement uncertainty is a parameter, associated with the result of a measurement, that defines the range of the values that could reasonably be attributed to the measured quantity. When uncertainty is evaluated and reported in a specified way, it indicates the level of confidence that the value actually lies within the range defined by the uncertainty interval.
A: Traceability is the property of the result of the measurement result whereby the result can be related to a reference through a documented unbroken chain of calibrations, each contributing to the measurement uncertainty.
This chain of comparisons, calibrations, tests, and other terms that imply a measurement involves increasing levels of accuracy for each measurement in the hierarchy reaching or traceable to the highest accuracy level or measurement origin. This measurement origin is normally standards and procedures maintained at the National Institute of Standards and Technology (NIST).
A: If you are a scale or service company:
A: You are required to submit your standards (tuning forks and LIDAR) on an annual basis according to CRS 35-14-107(g). There is a one year expiration date included on your certificate. You must submit your standards on or before this date.
A reminder postcard will be sent to the current contact name we have on our database. These are usually sent out approximately one month prior to the expiration date.
If the current contact name or address is incorrect, please fill out a new postcard request form and we will update our database.
A: To better serve our legal customers (scale companies and law enforcement agencies), we automatically provide a free "reminder postcard" service. We send out this reminder approximately 1 month prior to when the standards are due for calibration (2 months for large mass).
We also provide this service to our private and commercial companies who require their standards to be done on a timed basis according to their management system requirements on a request only basis. This is a gentle reminder to you to bring in your standards prior to the expiration. To request this service for your standards, please contact the Metrology Lab and ask for a postcard request form.
A: There are several reasons as to why you never received a reminder postcard:
Private or commercial companies:
We do not have current contact information in our database.
The postcard was sent to the wrong person
A: The lab strongly encourages packing your standards properly to limit damage during transport to our facility. The lab is not responsible for items not shipped properly. If a package arrives in poor packaging, we try to repack it properly to limit the amount of damage leaving our facility. You may be charged accordingly if extensive repacking is required. Please refer to Shipping Items for specific information.
A: There are several reasons why we cannot calibrate weights on a same day basis.
A: Weights that are brought into the laboratory form a thin layer of condensation on the surface. In other words, they "sweat". This is especially true during the colder months (cold outside into a warm and humid laboratory.) This layer of water adds enough weight to the standard that can throw the weight out of tolerance, thus forcing adjustment that can be avoided if the weights were allowed to equilibrate.
To resolve this problem, we only accept large mass on Fridays to allow the weight sit over the weekend to allow the condensation to evaporate and stabilize to the laboratory's environmental conditions.