Northrock Safety PPE Catalogue 2020

Quality Testing The cornerstone of success is stringent quality control. Can you be sure the product you are wearing conforms to EN ISO 20471? A certi cate froma test house guarantees that the garment or fabric sent to the test house has attained the EN ISO 20471 standard. It is not a guarantee that the bulk productionmeets the standard. Therefore, it is necessary that every roll of fabric and retro re ective tape is tested with highly specialised equipment which guarantees that all production meets the EN ISO 20471 standard.

Re ective Tape Testing The HiVisTex retro re ective tape used is of the highest quality. Every roll of HiVisTex tape is tested to ensure full compliance to the most up to date versions of EN ISO 20471, ANSI/ISEA 107 and AS/NZS 4602.1 high visibility safety apparel standards. This innovative high visibility tape solution o ers the wearer total peace of mind at all times.

RETROREFLECTOMETER This is for checking the performance of retrore ective tape. Every roll of tape is tested to ensure it meets and exceeds the standard requirements. The retro ectometer measures the coe cient of two rotating angles. EN ISO 20471 states the reading should not be below 330 (cd/lx.m2) however at Portwest we insist on a reading of 400 (cd/lx.m2) plus.

HIVISTEX REFLECTIVE TAPE HiVisTex is the latest innovation in re ective tape material. HiVisTex tape is constructed from thousands of premium, wide angle, glass beads, placed per centimetre squared. These beads work like thousands of tiny mirrors, re ecting light back towards its source as a brilliant white glow. Perfect for use in the protective clothing industries HiVisTex tape ensures the wearer ultimate visibility in low light conditions.

Y

Y

0.410

0.9

0.405

520

0.400

530

0.8

0.395

540

510

0.390

0.7

0.385

550

0.380

560

0.375

0.6

FLUORESCENTYELLOW

0.370

570

500

0.365

X = 0.59500 Y = 0.36100

0.5

580

0.360

0.355

590

0.4

0.350

600

FLUORESCENTORANGE-RED

0.345

610

FLUORESCENTRED

620

0.340

0.3

490

0.335

0.330

0.2

X

0.540

0.545

0.550

0.555

0.560

0.565

0.570

0.575

0.580

0.585

0.590

0.595

0.600

0.605

0.610

0.615

0.620

0.625

0.630

0.635

0.640

0.645

0.650

0.655

480

0.1

Orange EN471 graph / 2 degree d65 Y(Min 0.40) = 0.46717

X=0.59500 Y=0.36100

Fabric Testing In the quality control laboratory the Minolta Spectrophotometer is used to check every roll of fabric. This guarantees that the fabric used is fully compliant to the EN ISO 20471 standard.

470

460

X

380~410

0.0

0.0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

CLOSE-UP VIEWOF FLUORESCENT ORANGE This graph shows an enlarged view of the orange EN ISO 20471 colour range. The colour co-ordinates marked on the graph are a reading from our uorescent orange fabric. This reading is taken using the Minolta Spectrophotometer.

This graph displays the CIE 1931 X, Y chromaticity diagramwhich de nes a colour space for graphing colour.

77