Check here the list of TAPPI Technical Information Papers (TIPs) recently published:

• TIP 0306-11 Quality techniques using existing printing equipment (Revised)
  
  
• TIP 0402-03 Guidelines for corrosion resistant weld metal overlay of digester vessels in alkaline pulping service (Revised)
  
  
• TIP 0402-30 Inspection for cracking of composite tubes in black liquor recovery boilers (Revised)
  
  
• TIP 0402-32 Guidelines for thermal spray coatings installed to prevent corrosion in pulp mill process equipment (Revised)
  
  
• TIP 0425-08 Guidelines for the In-service Detection of Acoustic Emission Indications in Yankee Dryers (New)
  
  
• TIP 1101-05 Moisture Dynamic Correlations Method (New)
  
  
• TIP 1101-06 Best Practices for Mag Meters (New)

We extend our special appreciation to the following volunteers who served as Working Group Chairs in the recently published reviews of TAPPI TIPs:

• Dave Carlson – WGC for TIP 0306-11
  
  
• Michael Lykins – WGC for TIP 0402-03
  
  
• Douglas Singbeil – WGC for TIP 0402-30
  
  
• Michael Lykins – WGC for TIP 0402-32
  
  
• Stanley F Botten – WGC for TIP 0425-08
  
  
• Lu Athnos – WGC for TIP 1101-05
  
  
• Amanda Sans – WGC for TIP 1101-06

Special note: Documents appearing in the TAPPI online version of the Standards and TIPs are updated once a month (usually around the 30th). So it is possible that there is a delay between the publication announcement and the posting online. If you are a subscriber to the online access to Standards and TIPs and you are in a hurry for new documents that have not yet been posted, you can send a request for TIPs to tip@tappi.org or for Standards to standards@tappi.org.

1. T 452 om-18 Brightness of pulp, paper, and paperboard (directional reflectance at 457 nm) 
   - (Ballot closing: August 05, 2023)
   
   
2. T 839 om-18 Edgewise compressive strength of corrugated fiberboard using the clamp method (short column test) 
   - (Ballot closing: September 07, 2023)
   
   
3. T 825 om-14 Flat crush test of corrugated board (rigid support method)
   - (Ballot closing: September 08, 2023)
   

Listed below are TAPPI TIPs that were recently submitted to the Working Group for review. The date when the Work Item was opened is shown for each TIP, as well as the Subject Category under which the TIP is assigned and the Working Group Chair's (WGC) name. The target completion date for the review of each TIP is one year after the opening of the Work Item.

0106 – Coating Pigments

07/13/2023 – TIP 0106-06 Kaolin clay pigment index
- WGC: Prakash Malla

0304 – Process Control & Quality Assurance

07/13/2023 – TIP 0304-32 Causes and corrections of common corrugator bonding problems
- WGC: Mark Malinowski

0305 – Production

07/13/2023 – TIP 0305-53 Machinery considerations and selection: yoked scoring slotting section
- WGC: TBD

0404 – Water Removal

07/17/2023 – TIP 0404-66 Thermocompressor Applications for Paper Drying
- WGC: Mike Soucy

0416 – Steam & Power/Energy Management

07/19/2023  – TIP 0416-23 Explanation of recovery boiler leak indications
- WGC: Chris Jackson

0420 – Maintenance & Mechanical Engineering

07/07/2023 – TIP 0420-12 Guidelines for evaluation of liquid ring vacuum pump performance
- WGC: Chuck Wunner

If you would like to participate in the Working Group to review any of these TIPs, please write to tip@tappi.org.

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TAPPI/Standards T 232 cm-23: Fiber Length of Pulp by Projection

Scope: 1.1 This is a projection method (1) by which the weighted average fiber length of a pulp may be measured relatively quickly and easily.

1.2 If 1 is the length of any fiber in a sample of pulp, w its weight, and if N fibers are measured, their total length (Σ1) being L, the numerical or arithmetical average length is Σ1/N or L/N; their weighted average length by length = Σ(l2) Σ l and their weighted average length by weight Σ(lw)/Σ w.

1.3 The numerical or arithmetical average fiber length of paper pulps is a not a commonly used value, since the pulps consist of whole tracheids and shorter elements down to submicroscopic lengths, which are included in the arithmetic fiber length and there tends to be a larger quantity of them as fiber length decreases. The stated average is especially meaningless if the least length arbitrarily adopted as the lower length limit for a "fiber" or particle is not also given. The shortest fibers contribute very little to the total measured length, but numerically they are just as important and influence the final result of an arithmetical average just as much as the longest fibers. On the other hand, the weighted average fiber length is a fundamental property of pulps and relates directly to paper properties (2). The shortest fibers in an average specimen of pulp contribute very little, either to length or to weight in the calculation of the weighted average length and hence have an almost negligible effect on most test results. This corresponds in many cases to their almost negligible effect on the common properties of a pulp other than groundwood, except for its freeness and the transverse tensile strength, light scattering, or the air permeability of test sheets made from it. Fines and short fiber influence paper properties in a very different way from long fibers, thus, it is generally best to look at fines and longer fiber separately.

Publishing date: June 2023
Purchasing link: https://imisrise.tappi.org/TAPPI/Products/01/T/0104T232.aspx

Fig. 1. Diagram of projection apparatus

Fig. 2. Vertical projector

Do you have an idea for a NEW TAPPI Standard or Technical Information Paper? We want to hear about it! Please fill out and submit the New Idea Submission form.

The scope of the proposal for a new Technical Information Paper is shown below, as well as the assigned Subject Category, the date when the Work Item was opened, the title of the new proposal and the name of the Working Group Chair (WGC).

0420 – Maintenance and Mechanical Engineering

02/27/2023 WI 230420.01 Sulfuric Acid Unloading with Air
- WGC: Sylvia Ciampa

0425 – Yankee Dryer

03/23/2023 WI 230425.02 Safe Entry into a Yankee Dryer
- WGC: Jeff Peters

0425 – Yankee Dryer

06/12/2023 WI 230425.03 Yankee Dryer Thermal Spray Coating
- WGC: Clive Butler

0425 – Yankee Dryer

06/12/2023 WI 230425.04 Guidelines for the In-service Detection of Acoustic Emission Indications in Yankee Dryers
- WGC: Stanley Botten

1101 – Process Control

06/14/2023 WI 231101.01 Moisture Dynamic Correlations Method
- WGC: Lu Athos

If you would like to join the Working Group or review the final draft for this new proposal, please write to tip@tappi.org

Volunteers for the following working groups of Technical Information Papers (TIPs) are needed. All Working Groups of TIPs require a minimum of 3 TAPPI members from 3 different companies in order to review a TIP.

The following TIPs do not have an assigned Working Group Chair and Working Group Members to initiate the review.

Working Group Chairs Needed:

• TIP 0304-47 Corrugator bearing clearance checks and their impact
  
  
• TIP 0305-53 Machinery considerations and selection: yoked scoring slotting section
  
  
• TIP 0306-15 Identifying anilox volume measuring equipment
  
  
• TIP 0306-18 Cleaning anilox rolls: procedures and options
  
  
• TIP 0404-26 Paper machine clothing performance analysis
  
  
• TIP 0416-06 Keys to successful chemical cleaning of boilers
  
  
• TIP 0416-07 Evaluating reverse osmosis for treating makeup to the boiler feedwater in a pulp and paper mill
  
  
• TIP 0416-13 Water treatment-related opportunities for energy conservation in a paper mill powerhouse
  
  
• TIP 0420-14 Guide for increasing the maximum allowable working pressure of cast iron, ASME constructed paper machine dryers

Working Group Members Needed:

• TIP 0106-06 Kaolin clay pigment index

• TIP 0304-73 Checking for coating wear on corrugating rolls

• TIP 0305-53 Machinery considerations and selection:  yoked scoring slotting section

• TIP 0306-15 Identifying anilox volume measuring equipment

• TIP 0306-18 Cleaning anilox rolls: procedures and options

• TIP 0404-22 Press section economic evaluation

• TIP 0404-26 Paper machine clothing performance analysis

• TIP 0404-43 Water permeability of press fabrics

• TIP 0404-66 Thermocompressor Applications for Paper Drying

• TIP 0416-06 Keys to successful chemical cleaning of boilers

• TIP 0416-07 Evaluating reverse osmosis for treating makeup to the boiler feedwater in a pulp and paper mill

• TIP 0416-13 Water treatment-related opportunities for energy conservation in a paper mill powerhouse

• TIP 0416-23 Explanation of recovery boiler leak indications

• TIP 0416-25 Nitrogen oxide emissions control from biomass and kraft recovery boilers in the pulp and paper Industry 

• TIP 0420-12 Guidelines for evaluation of liquid ring vacuum pump performance

• TIP 0508-02 A glossary of terms used in refining

• TIP 0508-08 Thick stock and broke screening systems, evaluation, inspection, and maintenance

• TIP 0508-09 Paper machine approach (head box) screening systems evaluation, inspection, and maintenance

If you would like to join a Working Group of a TIP, please write to tip@tappi.org for more information.

... that to participate in the balloting process for TAPPI Standards you must sign up for the Standard-Specific Interest Groups (SSIGs)? Drafts are available for anyone... that to participate in the balloting process for TAPPI Standards you must sign up for the Standard-Specific Interest Groups (SSIGs)? Drafts are available for anyone to review, but to vote and comment you must be a member of the SSIG.

Each Standard has its own SSIG – so you have to sign up for each Standard that you have an interest in. Links to all of the SSIGs (by subject category) can be found on the Subject Category for Standards web page. Visit tappi.org/JoinStandards to join now.  

Acronyms You May Need to Know For details on these commonly used acronyms in the development of TAPPI Standards and TIPs, please see the Standards Guidelines and the TIP Guidelines, or send your questions to standards@tappi.org.

TIP = Technical Information Paper

Q&SMC = Quality and Standards Management Committee

SSIG = Standard-Specific Interest Group

SARG = Standards Advisory Review Group

WI = Work Item

WG = Working Group

WGC = Working Group Chair

om = Official Method

pm = Provisional Method

sp = Standard Practice

cm = Classical Method

ss = Standard Specification

sg  = Standard Guideline

gl = Standard Glossary

wd = Withdrawn Standard

UM = Useful Method

Details on how to search and order TAPPI Standards, TIPs, and Useful Methods can be found on the TAPPI website’s Search and Order page.

All individual TIPs or Standards are available for electronic or paper delivery. For electronic delivery, the documents are e-mailed in PDF format.  Hard copy documents can be mailed or faxed, but shipping and handling costs will apply.

For Individual TIPs, order Item Number: 0108____ (Insert TIP number)

For Individual Standards, order Item Number: 0104T____ (Insert Standard number)

For individual Useful Methods, order item number: 0104UM_____ (Insert UM number)

List price: $49; TAPPI member price: $32. There are no shipping or handling charges for electronic documents.

The TAPPI CD of Standards, TIPs, and UMs has been discontinued for 2021. An Individual or Company License for access to the continually updated collection of Standards, TIPs, and UMs via the web is the best way to always have a current set of documents accessible. A print-on-demand version of either the Standards, TIPs, or UMs, current and updated as of the date printed, is also available.

For information and quotes on company licenses, contact TAPPI Press (press@tappi.org) or +1-770-209-7277. For regular orders (including individual online licenses), contact Member Connection at 1-800-332-8686 (US), 1-800-446-9431 (Canada), or +1-770-446-1400 (international), or order on line at www.tappi.org.

 ----------------------------------------------------------------------------------------------------------------

Search and Order
https://www.tappi.org/publications-standards/standards-methods/

Individual Access or Company license
www.tappi.org/standardsonline

Join a SSIG
http://www.tappi.org/Get-Involved/Develop-Standards-Methods/Standard-Specific-Interest-Group/

Develop a TIP
http://www.tappi.org/Get-Involved/Develop-Standards-Methods/Develop-TIPs/

Standards Guidelines
http://www.tappi.org/content/pdf/standards/tm_guidelines_complete.pdf

TIPs Guidelines
https://www.tappi.org/globalassets/documents/tappi-tip-guidelines-revised-october-2019_final.pdf