In de negende editie van The Penguin guide to jazz recordings (1646 p./2008) worden 200 albums apart genoemd onder de noemer Core collection.

Dit gerenommeerde naslagwerk verschijnt sinds 1992 om de twee jaren. Er worden duizenden en duizenden cd's op een rijtje gezet. Elke titel krijgt een tot vier sterren.

**** Very fine: an outstanding record that yields consistent pleasure and is
a notable example of the artists's work

Tweehonderd van deze cd's worden extra naar voren gehaald onder de noemer
Core collection. Die treft u hieronder aan.

Crown
Daarnaast worden nog enkele andere cd's naar voren gehaald

In a very few cases we have chosen to award a special token of merit. It takes the form
of a crown. This is to denote records we feel a special adminraion of affection for:
a purely personal choice, which we hope our readers will deem as such.
We hope our readers will indulge this whim (aldus samensteller Brian Morton)

(HvD, woensdag 20 januari 2010)

Understanding MSS SP-55: The Standard for Casting Quality Inspection

Websites like IHS Markit, ANSI, or Techstreet sell the MSS SP-55 standard PDF .

For industries that rely on fluid control—such as oil & gas, petrochemical, power generation, and water treatment—the integrity of cast components is non-negotiable. One critical document that helps ensure this integrity is .

: Severe defects that require repair (such as welding) or total rejection of the casting. Where to Obtain the PDF

MSS SP-55 does not cover internal defects (which require NDT methods like radiography or ultrasonic testing), nor does it apply to weld repairs or non-steel materials.

MSS SP-55 does not operate in isolation. It is frequently paired with other non-destructive testing (NDT) standards to ensure holistic quality:

What (e.g., gate valve, flange) you are evaluating. The material grade of your casting (e.g., WCB, WC6, CF8M).

: Personnel performing visual inspections should be properly trained in the use of MSS SP-55. Understanding the subtle differences between defect types and severity levels requires experience and calibration.

Always ensure you're accessing the information from a reliable source to guarantee accuracy and compliance with industry regulations.

– Sand from the mold trapped on or just below the casting surface.

Accessing the official MSS SP-55 standard PDF is vital for several reasons:

Visual inspection is the first line of defense in quality assurance for many engineering components. When it comes to the cast metal parts that form the backbone of industrial piping systems—valves, flanges, and fittings—a robust and objective standard is critical. This is where the Manufacturers Standardization Society (MSS) standard plays a vital role.

– Areas where imperfections have been mechanically flattened, potentially masking subsurface flaws.

Mss Sp-55 Standard Pdf