ASTM D685 Paper Conditioning

Testing Standard:

ASTM D685 Practice for Conditioning Paper and Paper Products

Standard Number
ASTM D685

Standard Title
Practice for Conditioning Paper and Paper Products

Overview for ASTM D685:

ASTM D685 is a test method applied by establishing a standard atmosphere that all paper and paper products are conditioned to prior to testing. Purple Diamond Testing offers ASTM D685 Testing as part of our packaging compliance and validation services.

Rationale for ASTM D685:

ASTM D685 – Standard Practice for Conditioning Paper and Paper Products. This practice is essential for consistency in test results when evaluating materials regardless of location or timing. The humidity of paper directly affects the physical performance. By conditioning paper to the standard atmospheric conditions, consistent, repeatable test results can be obtained.

For this test method, there is a pre-conditioning requirement. This is important because physical properties of a sample at 50% relative humidity depend upon whether the sample is brought to 50% from a higher or lower relative humidity. Purple Diamond has a whole resource center for conditioning. The conditioning and testing atmospheres are important because both temperature and humidity have significant effects on the physical properties of paper and board. 

This standard is for lack of a better word, technically, identical to TAPPI T402. The method is applied in order to define the standard conditioning, normal preconditioning, conditioning, and testing of paper and paper products, paperboard, fiberboard, and containers made from those sorts of products. 

Key Points:

Related Standards:

As always, Purple Diamond offers you the ability to either schedule an initial consultation, complimentary, OR you can book a facility tour and come on in and visit. Definitely feel free to stop in to the lab if you are close to the Lehigh Valley. The packaging and whole Purple Diamond team is here to assist you anyway that we can. The initial consultation can be either a phone call or a zoom call, whatever is more convenient for you. Reach out via the Contact Us page by either filling out the contact us form OR booking some time on the calendar below the contact form. Either way we will get back to you! Thank you so much for reading down this far and thank you for considering Purple Diamond as your dedicated testing, engineering, and design facility for all of your packaging needs.

Contact Us

Accreditations

Achieving ISO 17025 Accreditation is the pinnacle in third-party laboratory testing accreditation. It confirms that the facility has management, quality, and technical systems in place to ensure accurate and reliable analyses.
ISTA is revered as the certification standard for package testing for distribution. ISTA’s Testing Protocol remains a series of testing methodologies and standards well recognized within the packaging community.
A select few companies are authorized by PHMSA as an approved third-party packaging testing laboratory in accordance with Hazardous Materials Regulations, critical to ensuring safe transport of dangerous goods.

Affiliations

With over 12,000 standards globally, ASTM International’s fully transparent standards development enhances performance and confidence in consumer choices.
The Technical Association of Pulp and Paper Industry’s peer-reviewed standards improve production through operational methods and industry recognized best practices.

 

 The APASS program was designed by Amazon to help support vendors, sellers, and manufacturers in obtaining certification of their products as Frustration Free Packaging (FFP), Ships in Own Container (SIOC), or Prep-Free Packaging (PFP).

ISTA Project 6 AMAZON.COM SIOC

Your Concept, Our Expertise

Enter your contact information below to get in contact today

To View Our Accreditation, Please Fill Out This Form

ANAB ISO 17025 Accreditation Certificate

ANAB Accreditation Gated Form

  • This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

  • This field is for validation purposes and should be left unchanged.

To View Our Accreditation, Please Fill Out This Form

ISTA Accreditation Certificate

ISTA Accreditation Gated Form

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

This field is for validation purposes and should be left unchanged.

To View Our Accreditation, Please Fill Out This Form

UN/DOT Accreditation Certificate

DOT Accreditation Gated Form

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

This field is for validation purposes and should be left unchanged.